In this case study, the customer achieved significant improvements in tooling costs and part quality through the implementation of a Meister hDD porous hybrid dressing tool. This tool, with its honeycomb-like bonding matrix was able to dress the wheel more efficiently, resulting in a sharper cutting action that produced better parts with significantly less wheel and dresser wear.
Benchmark Process:
Meister hDD Dressing Tool:
DD 170×7.88×75 X=6.5 W=2.5
D45-426-175-H
Results:
- Surface finish improved/tightened from Rz 2-6µm to Rz 2-4µm
- Stresstech measurements on ground camshafts were reduced
- Dressing interval increased from 165 to 240 camshafts
- Wheel life increased from 35,000 camshafts to 55,000 camshafts
- Dresser life increased from 17-months to 23-months
The advantages of the hDD dressing system has also been observed on cam lobe grinding applications which are even more sensitive to residual stresses induced during grinding.
