In this case study, a customer was looking to improve their grinding process for valve stems through better dressing technology. To reduce the effects of corrosion and skin irritation, the company had started making the switch from an emulsion to oil coolant, and discovered after converting the first grinder they could no longer achieve the required surface finish.
Under Meister’s recommendation, the customer replaced their standard stationary dressing tool with a porous hybrid-bonded dresser with CVD reinforcements. This technology, called cDD, utilizes an innovative metal-ceramic bonding that combines the wear resistance of metal bond with the porous structure of a vitrified bond. The result is a tool that is able to produce a sharper and more efficient-cutting grinding wheel, with the ability to produce higher-quality part surfaces, while also extending the dress interval and life of the grinding wheel.
RESULTS:
• Plug and play solution. No parameter changes needed.
• Surface finish was in tolerance.
• Tool wear 1mm after 1.5 million parts, which was only 25% of the tool’s useful life!
