我厂自制的高速钢(W18Cr4V、W6Mo5Cr4V2)螺纹铣刀(简称铣丝刀),是加工产品零件内、外螺纹用的刀具。长期以来,随着各种难加工材料的出现,刀具的耐用度下降,消耗量较大,常常出现刀具供不应求的情况,直接影响着生产任务的完成。 针对铣丝刀存在的耐用度忽高、忽低的问题,经工艺试验发现,冷却介质不同,刀 Our factory made high-speed steel (W18Cr4V, W6Mo5Cr4V2) thread milling cutter (referred to as milling cutter), is the processing of product parts, external thread with the tool. For a long time, with the emergence of various hard materials, the durability of the tool is reduced and the consumption is relatively large, and often the demand of knives is in short supply, which directly affects the completion of production tasks. For milling screwdriver existing durability suddenly high, suddenly low problem, the process test found that the cooling medium is different, the knife