CASE STUDY: hDD Dresser for Camshaft Journal Grinding

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.

About Bruce Northrup

Vice President and General Manager of Meister Abrasives USA
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