“冷镦锻工艺”是近几十年发展较快的一种少无切屑新工艺,该工艺主要特点是生产速度快(一秒钟就可生产几件)、提高了产品强度、制品外观好(光洁度均在▽4以上),并且由于材料的利用率较高,也降低了产品的成本。目前在全国标准件、轴承和电机等行业已基本普及。冷镦锻工艺的应用,为金属棒料的成形加工开辟了新道路,但冷变形模具的制造却是个新的课题,因为冷镦锻所用的模具必须具有较高强度、较高硬度、良好的耐磨性、韧性和疲劳性。然而在生产实际中,使模具 “Cold upsetting process” is rapid development in recent decades a few non-chip new technology, the main features of the process is the production speed (a few seconds to produce a few pieces), improve the product strength, the appearance of good products (Finish above ▽ 4), and the cost of the product is also reduced due to the higher material utilization. Currently in the country standard parts, bearings and motors and other industries have been basically universal. The application of cold upsetting process has opened up a new road for the forming of metal bar, but the manufacture of cold deformation mold is a new issue because the mold used for cold upsetting must have higher strength, higher hardness, good Wear resistance, toughness and fatigue. However in practice, make the mold