高速钢圆盘锯的切割效率和被切割材料的种类仍然受到较大限制。采用本文所介绍的硬质合金圆盘锯,就能进一步提高圆盘锯的切割效率,也能高速切割各种合金钢。一、硬质合金圈盘钢的结构硬质合金圆盘锯由圆盘形的刀体与硬质合金刀片两部分组成,如图1所示。刀体采用高强度钢、例如工具钢制造,其抗弯强度应为1300——1500牛顿/毫米~2。刀体宽度a_3t 应略小于切割宽度aN。刀体与轴的连接部分也应设计得比较粗大。硬质合金刀片具有多个刀刃。前角γ=-80°—-20°,后角a=+5°——+10°, High-speed steel circular saw cutting efficiency and the type of material being cut is still subject to greater restrictions. Carbide disc saws introduced in this article will be able to further improve the circular saw cutting efficiency, but also high-speed cutting all kinds of alloy steel. First, the structure of the cemented carbide ring disc Cemented carbide disc saw by the disc-shaped body and carbide blade of two parts, as shown in Figure 1. The body is made of high-strength steel, such as tool steel, and its flexural strength should be 1300-1500 N / mm2. Tool body width a_3t should be slightly smaller than the cutting width aN. Body and shaft connection part should also be designed to be relatively thick. Carbide inserts have multiple cutting edges. Rake angle γ = -80 ° - 20 °, relief angle a = + 5 ° - + 10 °,