截齿是采煤机的重要零件,也是采煤生产过程中的易损件,因此它的质量直接影响采煤机的工作质量和生产效率。随着生产的发展,采煤机械化程度不断提高,所需截齿数量将大幅度的增加,现年产量达几十万件。目前,生产截齿方法主要是以自由锻、胎模锻为主。由于现工艺落后,模具设计不合理,因此生产中存在材料消耗量大、废品率 Cutter is an important part of the coal winning machine, but also the production of coal mining vulnerable parts, so its quality directly affects the quality of work and the shearer production efficiency. With the development of production, coal mining mechanization continues to increase, the required number of picks will be substantially increased, the current annual output of several hundred thousand pieces. At present, the production of picks mainly free-forging method, the main die forging. Due to the backward technology, mold design unreasonable, so there is material consumption in the production of large, scrap rate