N. D. CAMSHAFT INSPECTION
AUTOMATIC NON DESTRUCTIVE TESTING EQUIPMENT FOR SURFACE DEFECTS
A) Problem Description
Camshafts for automobile engines are manufactured using a variety of methods.They can cause a variety of quality defects, such as:
- hardness cracks
- casting shrinkage, cavities and holes
- missing material
In the past, attempts to automate test procedures have often failed.
Complex geometry's such as camlobes can now be easily tested with standard Marposs N.D. probes. The Marposs N.D. inspection method is based on the Eddy Current technology. It is the only method capable of performing N.D. inspections automatically. For this reason, it can be easily installed into a production line for 100% inspection.
The traditional testing procedure, which is usually performed with magnetic powder and/or human evaluation, can be now reduced in terms of inspection time and overall cost.
Cracks as small as 100 microns in depth can be detected, dependent upon the surface finishing and material homogeneity
This equipment is used along with the E70S electronic unit.
Application for the simultaneous inspection of 10 camlobes and 6 journals (16 probes total).
Automatic measuring trigger on the camlobe's chamfer.
Machine cycle time: 16 seconds.