| 摘要 |
A thread rolling die (10) includes a thread rolling region (12) comprising a working surface (14) including a thread form (16). The thread rolling region (12) of the thread rolling die (10) comprises a sintered cemented carbide material having a hardness in the range of 78 HRA to 89 HRA. In certain embodiments, the thread rolling die (10) may further include at least one non-cemented carbide piece (18) metallurgically bonded to the thread rolling region (12) in an area of the thread rolling region that does not prevent a workpiece from contacting the working surface, and wherein the non-cemented carbide piece (18) comprises at least one of a metallic region and a metal matrix composite region. |
