Walter WMP20S insert optimised for steel and stainless steel

The use of a newly developed, thinner CVD coating on Walter's Tiger.tec Silver inserts has resulted in WMP20S, a universal wear-resistant insert with sharp cutting geometries that is said to be suitable as a universal grade for small-to-medium batch machining on both stainless steel and carbon steel materials.

Until now, says Walter GB, dedicated sharp-edge inserts would traditionally be applied to stainless steels in the ISO M group, while heavier edged tooling would be used for ISO P steels. WMP20, however, combines the best of both worlds, thus reducing inventory costs. Featuring a CVD coating that is only half as thick as conventional CVD, the Tiger•tec Silver cutting tool material is said to offer speed, reliability and longer tool life. Increased cutting speed is a result of the coating's aluminium oxide with optimised microstructure which extends the time it takes for crater wear recesses to form.