mechanical properties

accurate measurement of dimensions

Dimensional accuracy is another of the monitored parameters of the materials and parts supplied by us. To verify this accuracy, we use calibrated slide gauges and top-tier measuring equipment. With their help, we can identify even the smallest deviations from the specification, which is an important aspect for achieving high dimensional accuracy and product quality. We use the ZEISS coordinate measuring machine for precise dimensional verification even for very complex parts. For quick verification of radii, angles or edge shrinkage, we use the Mahr contourgraph.

strength tests

We perform selected mechanical tests of materials and finished parts on a Tinius Olsen universal testing machine. The universal testing machine is equipped with a temperature chamber with an operating range of -70°C to +300°C. We use its entire temperature range in our own tests as well as tests for our customers.

dynamic stress tests

Dynamic stress testing is an important part of the investigation of materials and structures. These tests are carried out where it is necessary to understand the behaviour of materials under repeated stresses or stress changes. Our universal testing machine enables dynamic stress tests in compression, bending, tension, and shear. The application is different and specific to the material and its application, as are the test conditions, which are set to match the expected or rather maximum possible stress. The purpose of these tests is therefore to determine whether a given material or structure can withstand specific conditions and whether modifications to the product design are necessary.

bonded joint tests

Within the framework of our research projects, we also focused on the issue of bonding permanent magnets and the effects of their coatings on the bonded joint. We perform bonded joint tests pursuant to procedures given in standards ISO 13445 and EN 1465. However, as far as the actual tests with bonded magnets are concerned, it was necessary to develop our own methods based on the standardised procedures.

we perform the following tests

• precise measurement of dimensions using the coordinate measuring machine (CMM)
• bend strength tests up to 1 tonne (ČSN EN ISO 3327, ČSN EN 843-1, ČSN EN ISO 7438)
• tensile strength tests up to 5 tonnes (ČSN EN ISO 6892-1, 6892-2, 6892-3)
• compressive strength tests up to 3 tonnes
• bonded joint strength tests (ISO 13445 and EN 1465)
• temperature range of testing: -70°C to +300°C