| 摘要 |
PROBLEM TO BE SOLVED: To provide a coated cutting insert that has improved ability to be able to withstand mechanical shock and thermal shock.SOLUTION: A chromium-containing coated cemented tungsten carbide cutting insert (10 and 32) comprises a substrate (18 and 34) and a coating (24, 30, 40, 46 and 52). The substrate comprises cobalt of about 10.4 to about 12.7 wt%, and chromium of about 0.2 to about 1.2 wt%. |
