Manufacturing Industry
Cobalt-free tool steel outperforms conventional type.
Advanced Materials & Processes, October, 1994 by Tarney, Edward J.
A switch from conventional M42 A(8% Co) tool steel to a cobalt-free alternative, Cpm Rex 20, has extended the life of end millS by 60 to 200% for a major U.S. manufacturer who cuts titanium and alloy materials. It also improved the company's productivity because a lengthening of tool life means less resharpening is required, and productive time between redressing is increased.
Other advantages of using end mills made of Cpm products from Crucible Materials Corp., Camillus, N.Y. include uniform wear of cutting edges -- less chatter, resulting in better surface finish on parts -- and consistent tool performance. Also, the changeover helps manufacturers eliminate the potential health; concerns posed by cobalt-containing dust generated in many grinding operations....
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