Driving process optimization forward (2)
As announced, Schmidt + Clemens and PFINDER will present a project that has already been implemented for process optimization in the area of dye penetrant testing. This is a quality assurance process based on non-destructive testing.
Here now follows part 2:
After manufacturing, each single tube is 100% checked by dye penetrant testing. This is a method of non-destructive testing with which the parts’ surface can be systematically inspected for defects. For the inspection, the parts pass through a fully automatic testing system.
In dye penetrant testing, a color contrast penetrant is applied to the surface, which has been cleaned without leaving any residue. The high capillary effect of the color contrast penetrant is utilized by the fine cracks or pores that are open to the surface. After a penetration time depending on the material, the penetrant is removed from the surface with water under well-defined conditions. After the application of a developer and a development time, the penetrant remaining in fine cracks or pores is absorbed by the developer locally. In this way, indications become visible on the surface. Trained test personnel interprets the indications according to defined criteria. In this way, a decision is made on the further usability of the tube.