Contract Measurement of Components as a Mass Task

• 23 Glass Plate Machines, including:
  • Four surface inspection machines
  • Two systems with internal thread testing
  • Two systems with large optics (60 x 60mm)
  • Two systems with large optics (60 x 60mm)
  • Two high-precision systems

• Four Glass Slide Machines, including:
  • One system with comparative hardness testing using the eddy current method

• One comparative hardness testing facility using the eddy current method
  • independent
  • downstream process

We are able to calibrate the measuring systems ourselves by using a Keyence projector. By doing this, we ensure an uninterrupted test sequence in contract measurement and sorting.

The sorting systems meet the following inspection requirements in side and top views:

• Outer diameter
• Inner diameter
• Total length
• Levels
• Chips
• Foreign parts
• Chamfer present yes / no
• Thread present yes / no
• Contour check
• And much more

The surface testing equipment detects defects such as bulges, cracks, colour differences, contamination, burrs and break-outs.

We carry out surface inspection of elastomers, in particular rubber rings (O-rings, ribbed rings, sealing rings), with special surface inspection systems. These systems are equipped with two glass plates and a turning station, among other things, making a broad range of testing jobs possible.

Thanks to the surface testing on our system with turning station, it is possible to test from two sides with consistent accuracy. This means, several test options are possible on both sides:

• A classic surface inspection, which inspects the component "from above" for defects such as dirt, burrs, chips or flaws
• An "external view" to look for defects or contamination on the lateral surface of the shell
• An "inside view" to look for defects or contamination on the inner surface

Cracks and pores on electrically conductive surfaces can be detected with hardness testing equipment using the eddy current method. This is a non-destructive testing method for detecting defects such as cracks on the surface of a component or nonhardened components.

The surface is scanned with a non-contact probe. The probe and a coil with alternating current generate a magnetic field. This induces eddy currents on the surface of the test component. The generated eddy currents create electromagnetic fields that are identified by the test probe.

For hardness testing, the machine needs hardened and unhardened samples in order to be calibrated.