Due to the addition of a new production line with larger pipe diameters, a second apex pressure testing machine has now been procured, which can also be used to test pipes with a diameter of up to 1.8 metres.
One advantage of the apex pressure testing machines from Hegewald & Peschke is that they can be built with different test chamber dimensions in order to test different pipe diameters. The testing machines are equipped with large compression plates and special compression gauges for determining the deformation of pipe segments. These can be easily integrated into the LabMaster material testing software.
The test procedures specified in the standards can also be set up and carried out in a user-friendly manner using the testing software. Data import and export for customer software such as QDAS or SAP also work effortlessly with LabMaster.
More about the testing of thermoplastic pipes according to EN ISO 13968
Hegewald & Peschke has now supplied a German car manufacturer with a test system that acts on the battery cells with 3 different types of load:
The testing system comprises an inspekt 100 kN universal testing machine, which has been equipped with a special temperature chamber to simulate the ambient conditions. The LabMaster software is used to reliably and reproducibly map all parameters during the test sequence.
The special requirement for the inspekt table 20 kN compression testing machine ordered is that cardboard boxes yield or buckle during the compression test. This causes bending forces to act on the compression surfaces and the load cell, which can damage them. The testing machine has special devices to prevent this. To prevent lateral forces from being transferred to the pressure plate or the load cell, the upper pressure plate of the testing machine can be tilted. In addition, an electrical switch-off device consisting of 4 limit switches monitors the angle of inclination. As soon as the inclination exceeds a critical value, the test is stopped.
In August, Hegewald & Peschke delivered an inspekt duo tensile testing machine configured specifically for use in dental technology. In the future, the customer will use it to determine material properties of polymers used in tooth replacement products. He will be able to test the entire sample range from thermosets to semi-crystalline thermoplastics and elastomers according to DIN 527, ASTM D638, ISO 37 and ASTM D412.
The universal testing machines of the inspekt duo series are particularly suitable for plastics tensile tests due to their test space height and configuration options.
The Institute of High Pressure Physics of the Polish Academy of Sciences relies on testing machines from Hegewald & Peschke. The institution is engaged in researching physical properties and transformations of materials at extremely high pressures. The studies are related to different materials such as semiconductors, ceramics, biological materials and metals.
A tensile testing machine inspekt duo with a maximum tensile load of 5 kN is used to perform various material tests for research purposes. The machine is equipped with a safety door, a video extensometer and various clamping tools.
At the research facility, the tensile testing machine is used, among other things, to perform tensile tests on metallic materials in accordance with EN ISO 6892-1 to determine yield strength, tensile strength and elongation at break. Furthermore, tensile properties of plastics are determined according to ISO 527-1 (e.g. tensile stress, elongation, Poisson's ratio). In addition, the testing technique is used for creep tests to determine the plastic time-dependent deformation of a specimen.
A video extensometer is used for optical strain measurement. The field of view of the extensometer is specially designed for very small specimens. The material specimens at the Institute of High Pressure Physics are often so small that in some cases only 5 mm of specimen length is visible between the grips. For this purpose, a special lens for macro images is used in the extensometer. The video extensometer ONE from Hegewald & Peschke works on the basis of high-resolution video technology using the surface structure, so that no artificial markings are necessary for strain measurement if the sample surface is suitable.
Stone impact tests are an important standardized method of material and component testing, especially for the automotive industry. In addition to many manufacturer-specific standards, the multi-impact test according to DIN EN ISO 20567-1 is of particular importance. The stone impact test according to this standard is used to determine the stone impact resistance. It evaluates the resistance of single or multiple coatings to stresses caused on vehicles by impact bodies with low mass and high speed.
With the stone impact tester from Hegewald & Peschke, the impact bodies can be shot at the specimen with a defined energy at a specific impact angle. The characteristic value for the stone impact strength is then determined by comparing the degree of damage with standardized reference images. Due to the use of approximately spherical projectiles between 4-6mm (others optionally possible), a statistical evaluation is enabled via the requirements of the standardization. Due to the large test area of the stone impact tester, which is covered with a protective enclosure, a wide variety of components and material specimens can be tested. Possible test objects in the automotive sector include vehicle parts such as radiators, engine hoods, rims, windows or floor panels.
At the Leipzig University of Applied Sciences, the test stand is also used as a multi-impact tester for other areas of application. At the Chair of Lightweight Construction with Composite Materials, panels made of fiber composites are tested regarding their impact strength. Different compositions of CFRP or GFRP materials are being researched.
Additively manufactured foam components are finding their way into a wide variety of industries and fields of application. They are flexible, comfortable, lightweight and can be customized. For research and further development of the properties of the materials as well as the pore structures of these foams, a universal testing machine inspekt duo is used at the Chair of Solid Mechanics at the University of Siegen. The testing machine is equipped with compression plates for performing the material tests.
In addition to simple compression tests, creep tests or retardation tests are also carried out. In this particular application, the creep tests on the foam specimens are performed at room temperature - unlike creep tests on most metals, for example.
Many large car manufacturers are currently focusing on the development and production of electric and hybrid vehicles. The share of electromobility is growing steadily. Particular importance is being attached to the energy storage systems in motor vehicles. Nevertheless, there are many unresolved aspects.
A German car manufacturer has now invested in an inspekt 100 kN universal testing machine to examine battery cell composites for electric vehicles. The testing system allows compression tests in a temperature range from -40°C to +120°C. In addition to thermal and mechanical stress, the battery charging and discharging behaviour is also examined. For this purpose, a battery cell tester is integrated into the testing system with universal testing machine and temperature chamber. LabMaster - the testing software for material testing and component testing from Hegewald & Peschke - ensures optimum interaction between the individual components.
The testing system can be operated under compressed air as well as under inert conditions and has various sensor systems to meet the safety requirements of such a complex test set-up. Within the temperature chamber, which is equipped with a sand floor, the concentrations of the gases hydrogen sulphide, hydrogen, oxygen, sulphur dioxide and carbon monoxide as well as the relative humidity are monitored. The test system also synchronously records the physical parameters temperature, force, displacement and the variables voltage and current, which are of interest for the holistic evaluation of the tests on the battery cells. By combining the test procedures, the life cycle of battery cells in electric vehicles can be simulated very realistically. These are exposed to various stresses in their intended use. For example, this includes pressure loads in the event of an accident, thermal loads due to charging processes or the ambient conditions and also the possible interaction of these influencing factors.
Hegewald & Peschke offers a large portfolio of testing technology, which also includes various devices for testing wires.
In addition to universal testing machines with special clamping devices for a wide range of wire types, hardnesses and material strengths, this also includes simple bending fatigue testing machines according to ISO 7801 or DIN EN ISO 15630 or special testing machines for stress corrosion cracking tests according to DIN EN ISO 15630.
In addition, Hegewald & Peschke offers a series of torsion testing devices that can be used for simple as well as highly complex torsion tests up to 5000Nm.
Specifically for simple torsion tests on wires according to DIN ISO 7800, the torsion testing device TW-500H has now been newly developed. The model is equipped with a PLC control and operation via touch screen. By using templates in which all parameters are already set based on the standard specifications, the test can be started quickly and easily. Alternatively, the test parameters can be entered individually via the touchscreen. Interactive user guidance leads the user through the criteria predefined in the standard. The test results can be exported as CSV and are thus traceable for documentation and quality management. The torsion testing device convinces both visually and functionally as a compact overall system with a fixed work table and integrated control cabinet. The control system automatically detects the breakage of the wire and stops the test. The torque is determined indirectly via the motor power. In order to provide the operator with the highest possible level of work safety, the torsion testing device is equipped with an electrically interlocked safety door. A secure hold is guaranteed when the safety door is open. The tensile stress in this model is not applied via dead-load weights as usual, but configurably via a pneumatic cylinder.
In addition to the torsion testing device, the clamping devices for wires have also been optimized. A modular system makes it easy to change the clamping jaws for different wire diameters. The clamping of the wires can be carried out quickly and easily. The clamping length can be comfortably adjusted via a scale in the machine bed.
With the torsion testing device TW-500H, torsion tests on wires according to DIN ISO 7800 can be carried out particularly efficiently, time-saving and comfortably, because the complete testing system is optimized for this purpose. For torsion testing and torque loading on other materials or components as well as tests according to different standards, Hegewald & Peschke offers torsion testing devices with the universal material and component testing software LabMaster. This contains extensive possibilities of the test setup and is particularly aligned to the individual needs of the customers. The software offers a flexible, user-friendly concept for both simple and complex testing tasks.
Video of the testing procedure with the torsion testing device TW-500H
Measuring the tube length of seamless and welded tubes made of steel and stainless steel is an important step in the quality assurance of these products. Length measuring devices from Hegewald & Peschke are used by various manufacturers of pipes. The light version of the length measuring machine can be used for measuring precision steel pipes up to 3850 mm measuring length with different pipe diameters.
Length measuring technology from Hegewald & Peschke offers many advantages: It measures the lengths of workpieces quickly and reliably. The results show a high measuring accuracy and reproducibility, even in difficult production environments. The devices for length measurement are available for various measuring lengths in different widths between 1100 mm and 4000 mm.
Thanks to the flexible modular system, the appropriate measuring accessories can be put together to suit individual requirements. For example, the measuring device can be extended with a line laser module, whereby any points along the workpiece can be optically measured via the line laser. This is used, for example, for the measurement of bores, threads or markings for the uniform elongation of tensile specimens.
Further information about our 1D length measuring devices
Video on the function and operation of the length measuring devices
For material testing on self-supporting sandwich elements with metal face sheets on both sides according to DIN EN 14509, Hegewald & Peschke has delivered a universal testing machine inspekt duo 10 kN to ArcelorMittal Construction in Sweden. The company produces innovative and sustainable construction systems for energy-efficient buildings.
Various testing machines from Hegewald & Peschke are also used at other locations of the group of companies. Among other things, an Instron 10 kN universal testing machine was modernized in 2021 at the company's plant in Saxony.
More about testing sandwich elements according to DIN EN 14509
Test fields for furniture testing and component testing from Hegewald & Peschke are used for a wide range of test methods. In addition to durability tests and dynamic and static load tests, functional tests and standard-compliant simulations of the product life cycle according to DIN EN ISO, BIFMA, BS, NEN, GB, GOST, etc. can also be performed. To set up the test sequences and adapt the test fields to a wide variety of test specimens, such as chairs, beds, doors, hinges, etc., they are individually equipped with, for example, electromechanical and pneumatic test axes, drop testers or swivel modules.
The potential of older test stations for furniture and component testing is often not fully exploited, for example in terms of software. Existing furniture testing stations can be modernized to the current Calmar pro standard from Hegewald & Peschke. For this purpose, the test stations are retrofitted with a complex control system and the CalMaster testing software with user interface and the possibility of real-time monitoring.
CalMaster is a flexible testing software for single and multi-axial testing. It enables the control of the test system as well as the synchronization of several test axes to one test task. The modular concept of the software allows to create individual test templates. Tests based on existing templates or according to the standardization; e.g. EN1335, EN581, EN1728, BS5459 or BIFMA X5.1, can be easily started, stored traceable in a database, evaluated and logged.
The globally active Phoenix Contact Group produces innovative components in the fields of electrical engineering, electronics and automation. In doing so, the company attaches great importance to quality. Material and component testing plays a decisive role.
For the field of electromobility and the charging technology required for this, the group is now investing in 4 universal testing machines from Hegewald & Peschke.
This means that 19 testing machines have already been delivered to the Phoenix Contact Group worldwide and are now making a decisive contribution to the quality and safety of products in Germany, India, the Czech Republic and China, among other places. The spectrum of the delivered testing technology ranges from the small inspekt solo 2.5 kN to the robust inspekt table 100 kN.
More about testing charging technology for electromobility.
With the modernisation packages from Hegewald & Peschke, testing machines can be upgraded to the latest state of the technology, independent of the manufacturer. By using high-quality components from Hegewald & Peschke and the experience gained from many successful modernisations, the testing machines are upgraded to be sustainably fit for the future.
A major advantage is that existing accessories, such as fixtures and specimen grips, extensometers or temperature control devices, can often be reused. Depending on their initial condition, the testing machines are modernised with the latest measurement and control technology and Hegewald & Peschke's testing software. If necessary, the motor is also replaced and the drive assembly adapted.
The universal testing machines are then modernised and fully compatible with current accessories - comparable to a new testing machine.
If we are allowed to carry out the modernisation on our premises, the visual appearance is also brought up to an as-new standard, as some examples show (see illustrations above):
Testing machines with lateral test room offer the great advantage that two different tests can be performed ergonomically WITHOUT modification. This saves time and money and is especially interesting for heavy grips and fixtures or oversized bending benches.
A recently delivered testing system includes a universal testing machine inspekt 250 kN with a second lateral testing room. The main testing room is equipped with a 250 kN screw type wedge action grip and an MFX200 long-travel extensometer. A safety door provides protection against splintering specimen parts. Metal tensile tests are carried out here in accordance to DIN EN ISO 6892-1 standard. In the lateral test room, bending tests up to 100 kN are performed on metal shoulder specimens according to DIN EN ISO 7438.
The tests are evaluated using the materials testing software LabMaster.
The tensile and bending tests are used to determine the mechanical-technical values of initial sample parts as well as material specimens from the customer's testing department and for the examination of components subject to complaints from customer service and the spare parts business.
Further information about universal testing machines inspekt
More examples for universal testing machines of the series inspekt with lateral test room
Crankshafts have to withstand complex mechanical stresses and therefore meet high requirements in terms of strength, pressure or impact loads. In addition to the chemical composition of the materials, surface treatment also plays a decisive role. For example, the induction hardening process allows crankshafts to be specifically hardened even in the highly stressed radius areas.
o measure the quality of the surface treatment, a major crankshaft manufacturer uses hardness testing equipment from Hegewald & Peschke that has been specially developed for this application at various of its production sites. With the testing equipment, crankshafts can be tested over their complete diameter. Hardness measurement according to the Rockwell C method is performed perpendicular to the crankshaft's axis of rotation.
Based on the crankshaft size, the hardness test head is positioned according to the test requirement. The crankshaft is clamped via the built-in pneumatics. This significantly increases the reproducibility of the measurement. Depending on the scope of the test, up to 30 crankshafts can be tested per hour.
For the quality inspection of large crankshafts from 1.6 to 4 m in length, the crankshaft manufacturer also relies on a universal testing machine inspekt 300 kN from Hegewald & Peschke.
More information about hardness testing equipment for crankshafts
Hardness testers and hardness testing machines from Hegewald & Peschke
Length measuring devices offer a cost-effective solution for measuring tasks where a caliper is too short and a tape measure too inaccurate. They are easy to operate and provide precise measurement results - even with sensitive materials such as those used for electrodes.
For this application, Hegewald & Peschke has supplied a 1D measuring device to Innolith Science and Technology GmbH. The energy technology company specializes in the production and development of innovative batteries. The non-flammable electrolytes enable batteries with higher voltages and higher capacities with longer durability as well as higher safety. Applications for these innovative batteries include automotive, power grid, and aerospace.
The supplied length measuring device is used at Innolith to measure electrode material. Since the materials are very sensitive with a width of 35 to 80 mm and a thickness of 0.3 mm, new workpiece supports were developed for the measuring device. They ensure that the material is fully supported during length measurement and is not damaged.
The equipment of the length measuring fixtures can be individually adapted for each customer requirement. The high-quality and robust measuring system with precise and smooth-running linear guide enables the simple and reliable recording of length measurements with particular attention to flexibility and economy.
The Zentrallabor Siegerland, Braun & Co. is one of the leading private laboratories in the field of destructive materials testing. For the mechanical-technological testing department, Zentrallabor Siegerland already successfully uses testing technology from Hegewald & Peschke. Now another universal testing machine has been ordered from Hegewald & Peschke.
The former testing machine inspekt 250 kN will be used for metal tensile tests under room temperature in the future. The recently acquired testing system will be used for metal tensile tests under high as well as low temperature. For this purpose it includes a universal testing machine inspekt 250 kN with three furnaces for up to 1000°C, as well as a low temperature testing unit.
For the realization of different tensile tests a changing device is used. This serves to integrate the different testing equipment into the test room. The changing device reduces the changeover times to a minimum when implementing different testing tasks on the machine. The accessory equipment can be moved into the test area easily, safely and smoothly. Unused devices are parked in a parking position behind the testing machine.
This arrangement also allows the high-temperature furnaces to be heated up and cooled down outside the test room, so that the test room only needs to be occupied for purely test execution. The test sequence is thus not interrupted and waiting times are significantly reduced, so that up to 30 hot tensile tests can be carried out in one shift. This ensures more efficient use of the universal testing machine in the daily workflow.
Glass is a popular building material: It provides brightness inside buildings and makes rooms appear larger. Glass plays a central role in many innovative construction projects and is often used for prestigious buildings.
One of the world's largest glass manufacturers with production sites all over the world is Guardian Glass. It supplied its glass for the world's tallest building, the Burj Khalifa in Dubai, which was completed in 2008.
With the aim of setting new quality standards for glass production, the manufacturer has equipped its production sites in Europe with glass bending testing machines from Hegewald & Peschke. In addition to the German site in Thalheim, this included all other European sites in Great Britain, Spain, Portugal, Luxembourg, Russia and Poland.
The 10 kN glass testing machine was specially developed for glass bending tests according to DIN EN ISO 1288-3 and the punch method according to ISO 614. DIN EN ISO 1288 is the standard for determining the bending strength of glass used in construction. This can be simple float glass as well as toughened safety glass. In part 3 of the standard, specimens are tested using the 4-point bending method.
Calculating the durability of glass is difficult. Therefore, destructive tests must be carried out in order to be able to check the strength. The evaluation of the statistical parameter "Characteristic bending tensile strength according to DIN EN 572-1" is one of the values used to calculate the use of glass as a construction material. Here, the strength values of the individual tests are used to determine the probability of breakage of 5% in the lower limit of the confidence interval of 95%.
Operator training at Guardian Glass was conducted via video conferencing and remote access due to current travel and contact restrictions. Extensive videos and pictorial instructions were provided to the customer for transport, installation, commissioning and use of the machines.
Tensile testing on steel pipes with universal testing machines of the inspekt series
Pipes are used in a very wide range of applications. They transport liquids, gases or granulated material - under and above the earth's surface, in machines and vehicles or in factories. In order to withstand the different stresses to which they are exposed, a broad range of materials and manufacturing processes are used in the production of pipes.
The testing of the raw materials and the finished pipes plays a decisive role both in the area of research and development and in quality assurance during production to ensure the functionality and safety of the pipes in their intended use. Variuos test procedures are used, starting with the steel melting and ending with the delivery test prescribed for the type of pipe.
For testing the pipes at the end of the manufacturing process, universal testing machines of the inspekt series in a load range from 400 kN to 2500 kN are often used in practice.
Further information on the configuration of the test systems for tensile tests on steel pipes
Testing machines are used in almost all industries and are applied for material and component testing involving a wide variety of testing methods. Especially for high-strength materials, such as many metals and modern composites, as well as for components that have to withstand extreme loads, such as screws and chains, testing machines are required that achieve the highest precision at maximum test loads. The universal testing machine series inspekt from Hegewald & Peschke was developed exactly for this purpose.
The machines are characterized by a large variance in load range and application areas. For example, while a testing machine with a maximum test load of 100 kN is sufficient for most bending and folding tests according to ISO 7438 or VDA 238, up to 2,500 kN are sometimes required for use as a calibration machine. For metal tensile tests according to DIN EN ISO 6892-1 or bolt tests according to DIN EN ISO 898, test loads of up to 400 kN are usually sufficient. In contrast, large chain links can often require maximum forces of up to 1,200 kN. All these requirements can be covered by the testing machines of our inspekt series.
The modern Harmonic Drive® drive technology coupled with powerful AC drive ensures optimized control behavior and enables increased testing speeds. This makes the testing machines suitable for static material testing as well as for alternating and continuous loads.
The flexible design of the testing machines is reflected in the variable test room heights and widths as well as an optional lateral test room - in addition to two vertically arranged test rooms. This arrangement allows different testing tasks to be carried out without having to modify the testing tools. Peripheral devices (e.g. furnaces, temperature chambers) and additional measuring and control channels can also be easily connected as standard. The user-friendly material testing software LabMaster ensures optimum interaction between the individual components of the testing system. The extensive range of specimen grips, test tools and extensometers ensures compatibility with a wide variety of test methods and reliable specimen clamping.
Further information about the universal testing machine series inspekt
Protective breathing masks have become an everyday companion for all of us because of the Corona pandemic. High demands are placed on the materials used for production in accordance with various standards for optimum quality and protective effect. In addition to filtering performance against solid and liquid aerosols, this also applies to physical properties. For example, the tensile strength of the textiles when worn and the behavior of the fabrics under moisture are tested.
To ensure the high quality of the materials, they are tested both in research and development and in quality assurance during production. Common test methods are, for example:
For these testing tasks, a universal testing machine inspekt solo 2.5 kN, equipped with a screw grips, was recently delivered to a testing institute for medical devices.
Video testing of non-wovens and textiles
Further information about our universal testing machines inspekt solo 2,5 kN
Hegewald & Peschke have equipped a complete testing laboratory in Romania with its Calmar one component and furniture testing technology.
The Transylvanian Furniture Cluster (TFC) is a research cluster in Cluj, Romania. In order to support the regional furniture industry, the Municipality of Cluj-Napoca, in partnership with TFC and other local partners has developed a large furniture testing laboratory, with EU funding from Urban Innovative Actions program, for which Hegewald & Peschke supplied the hardware. The project is called Cluj Future of Work and it is a R&D effort to test and prepare the capital of Transilvania for the most likely scenarios to happen, that can impact industries and workforce.
Cluj Future of Work is realized in co-management by Cluj-Napoca Municipality and Cluj Cultural Center, in a consortium with eight other local organizations: Cluj Metropolitan Area, Transylvania Creative Industries Cluster, Transylvanian Furniture Cluster, Cluj IT Cluster, Transilvania IT Cluster, TIFF - Transilvanian International Film Festival, University of Art and Design from Cluj-Napoca (UAD) and ZAIN - Design Expressions.
Due to the long experience in the segment of component and furniture testing, Hegewald & Peschke has developed a modular system, which meets the industrial standards and also allows the individual customer requirements. The delivered furniture test stands offer a wide range of testing possibilities:
A mattress test stand is used to determine how long a mattress can withstand a certain load without being damaged according to DIN EN 1957.
Three universal test fields of different sizes, equipped with pneumatic axes, are used for fatigue tests as well as for the determination of dynamic and static parameters according to DIN EN 1728 and DIN EN 1725. Permanent load and function tests are also possible.
The stability of tables and chairs is tested according to DIN EN 1022.
A pendulum impact tester with impact hammer 6.5kg and an IRHD of 50 is also used. A drop tester is variably positioned in a test portal to apply dynamic impact loads to mattresses, beds, seating and living room furniture.
Learn more about component and furniture testing technology from Hegewald & Peschke
What will mining look like in the future? Will we find ways to store energy permanently? What are the possibilities for sustainable and safe construction? The Institute of Geotechnical Engineering at TU Bergakademie Freiberg is dealing with these and many other topics. In order to find answers to these and other questions, the material properties of geomaterials and building materials, for example, are determined in laboratory tests.
For this task, the Department of Geomechanics, Rock Mechanics and Rock Engeneering at the Institute of Geotechnical Engineering has equipped its Rock Mechanics Laboratory with a Hegewald & Peschke rock testing machine with climate chamber. It is used for testing the mechanical properties of specimens made of solid rock (bedrock) under specific climatic conditions.
The test system consists of a universal testing machine inspekt 400 kN with climatic test chamber -30°C to 100°C, a 4-point bending jig and accessories for compression tests. The test procedure and the test evaluation are carried out with the testing software LabMaster. Rocks are subject to changes caused by heat on the one hand and frost on the other. These environmental conditions can be simulated with this test system. Mechanical processes such as deformation and stress are tested in compression and bending tests. In this way, the materials can be understood and characterized with regard to their subsequent possible uses.
ArcelorMittal Eisenhüttenstadt is a traditional steel company with a special history. In the early 1950s, Eisenhüttenkombinat Ost, a pig iron plant with six blast furnaces, was established on the German-Polish border. Today, ArcelorMittal Eisenhüttenstadt is an integrated steel mill with modern facilities and technologies.
ArcelorMittal Eisenhüttenstadt's customers include well-known companies in the automotive, household appliance and construction industries. One important sales area is the automotive industry. High-quality, surface-coated body panels from Eisenhüttenstadt can now be found in many car brands.
ArcelorMittal has now acquired a measuring device for determining the transverse thickness profile of sheet strips up to 1,800 mm long used in the automotive industry. This device is suitable for semi-automated measurement of the transverse thickness profile of sheet metal strips. It has a measuring carriage driven by an electric motor. Attached to this is a measuring bridge with two pneumatically driven probes arranged opposite each other, which measure the thickness of the specimen using the addition method. A workpiece fixture enables simple and positionally accurate manual insertion and fixing of the specimens.
A PC with configurable measuring and evaluation software, such as LabMaster, serves as the operating interface. This is where specimen-specific data are entered, the measurement series are parameterized, and the measurement data are stored and output.
Further information on the measuring device for determining the transverse thickness profile
They are used in the construction of complex machines and plants as well as in vehicle construction and in the building industry: screws are one of the most important connecting elements in industry. Mechanical stresses are particularly high at such joints. This makes it all the more important to ensure the durability of screws.
ElleDi SRL is a manufacturer of wheel bolts and wheel nuts for the automotive industry based in Carmagnola near Turin/Italy. The automotive supplier tests with a universal testing machine inspekt table 250 kN, which is used with the appropriate grips and specimen grips as a tensile testing machine for tensile tests on bolts.
The testing system is used to determine the mechanical properties of wheel bolts, such as their tensile strength. Short bolts in particular are challenging to test, as only a short measuring length is available. The choice of the right clamping fixture and the appropriate connection specimen holder must be made all the more carefully. The bolts to be tested are wheel bolts of different geometries, such as crowned and tapered wheel bolts. The specimen holder was made to fit the customer exactly.
The company DEK s.r.l., under the responsibility of Mr. De Chirico, successfully advised ElleDi in the project and represents the products of Hegewald & Peschke in sales and service in Italy.
Together, the briefing could be carried out online via video conference due to the currently valid Corona restrictions.
The Faculty of Metallurgy University of Zagreb purchased the Universal testing machine inspekt table 100 kN, Hegewald and Peschke. The equipment will be used as a tensile testing machine for tensile tests on flat and round specimens, connection and thread specimens as well as shoulder head specimens. Compression tests and hardness tests according to Brinell can also be carried out with a manual evaluation unit. With the extended universal testing machine with high-temperature furnace, tests according to ISO 6892-2 up to 1250°C are also possible.
Since the machine has two load cells, large, heavy components can be tested as well as small components without sacrificing accurate resolution. For higher resolution, the smaller loadcell is installed. The large load cell remains in the testing machine for this purpose, thus enabling a time-saving conversion.
The activity was performed within infrastructural project VIRTULAB - Integrated laboratory for primary and secondary raw materials, KK.01.1.1.02.0022 funded by European structural and investment funds: European regional development fund, Operational Programme Competitiveness and cohesion 2014-2020.
A modern car consists of up to 10,000 individual parts, of which around 200 are fine-blanking parts. The fine-blanking process produces components that are characterized by extremely precise, right-angled and tear-free cutting surfaces. Since those parts are for example used in braking systems, belt devices and gearboxes, their function is often safety-relevant and the mechanical stress is usually very high. In order to be able to precisely and reliably meet the resulting high demands on the material and design of these components, they must be tested using various test methods both in the development process and in production-accompanying manufacturing.
The SCHERDEL company has been a supplier to the automotive industry for over 100 years, specializing in technical springs, assemblies and fine-blanking parts, among other things. A universal testing machine inspekt blue 20 kN from Hegewald & Peschke has recently been supporting the development and production of the components at the facility in Chemnitz, Germany.
The testing machine is equipped with a compression plate and a compression piston. This test setup is used to perform compression tests on pins on fine-blanking components. The test is non-destructive and measures the deformation of the pins in the compression direction. By testing the material and the component, both the functionality of the components and the fact that they can withstand the highest mechanical loads with reduced weight are ensured. The operator's work safety during the testing process is ensured by a CE-compliant safety door at the front of the testing machine.
The Fraunhofer Institute for Ceramic Technologies and Systems IKTS Dresden conducts research in the field of advanced ceramics. Among other things, it characterises material materials in order to subsequently derive material models for simulations. The IKTS is a long-standing customer of Hegewald & Peschke and already has several universal testing machines of the inspekt table series as well as a system for hot hardness testing.
The current project uses an inspekt table 5 kN tensile testing machine. Its travel speed was modified in such a way that cyclic loading and unloading tests can also be carried out with very high travel resolution. In this way, travel can be controlled by a capacitive displacement sensor that is to be integrated.
The test system is also equipped with a temperature chamber for the range -70 to +250°C in order to be able to carry out tests under the influence of temperature.
Strojmetal is a company in the aluminium forging sector. In 2004, an inspekt desk 50 kN was delivered to the plant in Kamenice, Czech Republic, which has now undergone a modernisation.
The testing machine from 2004 was brought up to date and made fit for the future by providing it with a new drive, a new controller, a software update as well as a new hand-held remote control and additionally a clip-on extensometer. This once again speaks for the robustness and durability of the testing machines from Hegewald & Peschke. Together with the possibility of retrofitting, this also saves resources and is sustainable.
>> Further information about the modernisation possibilites at Hegewald and Peschke
In addition to the retrofit, Strojmetal is expanding its testing capacities with a new tensile testing machine of the type inspekt 250 kN. It is used to test flat and round specimens made of aluminium alloys as well as components made of forged parts for chassis of major German car manufacturers. The test system is equipped with a particularly high-resolution long-travel extensometer MFX200 and a wedge grips 250kN with pyramid jaws in modular design. The tensile strength, yield strength and elongation at break are determined in the metal tensile test according to ISO 6892-1.