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目前已相当普遍地采用硬质合金刀具进行高速切削和强力切削。但是,刃磨T_5K_(10)、T_(15)K_6、T_(30)K_4等高钛硬质合金刀具时,经常会把刀片磨裂(如图1所示),因而阻碍刀具寿命和生产效率进一步的提高。一、硬质合金刀片磨裂的检验 1)刀具刃磨后随即用碳化硼进行研磨2～3分钟,即可显出如图1的网状裂纹;2)裂纹大的用8～10倍放大镜检查;3)在试验室中可用氧化镁融光透视观察。
It is now quite common to use carbide tools for high-speed cutting and intensive cutting. However, when grinding high titanium carbide tools such as T_5K_ (10), T_ (15) K_6 and T_ (30) K_4, the blade will often be shattered (as shown in Fig. 1), which hinders the tool life and production efficiency Further improvement. First, the carbide blade grinding test 1) grinding blade immediately after grinding with boron carbide grinding 2 to 3 minutes, you can show the mesh cracks as shown in Figure 1; 2) large cracks with 8 to 10 times magnifying glass Check; 3) available in the laboratory magnesia perspective observation.