The common materials of the milling cutter

1, High speed tool steel(referred to as high speed steel, front steel, ect.), devided into general and special purpose high speed steel two kinds. It has the following characteristics:

A, high content of alloy elements hook, Ming, aluminum, vanadium, quenching hardness up to HRC62-70. It can still maintain high hardness at 6000C high temperature.

B, good egde strength and toughness strong vibration resistance, can be used to manufacture cutting speed of general milling cutters , for poor rigidity of the machine, the use of high speed steel end mills can still smooth cutting.

C, good process performance, forging , processing and grinding are relatively easy, but also can be manufacture more complex shape of milling cutters.

D, compared with cemented carbide material, it still has the disadvantages of lower hardness, red hardness and poor wear resistance.

2, Cemented carbide: metal carbide, tungsten carbide, titanium carbide and cobalt based metal binder by powder metallurgy process. Its main characteristics are as follows:

Can withstand high temperature, in 800-10000C or so can still maintain good cutting performance , cutting can choose 4-8 times higher than high speed steel. High hardness and wear resistance at room temperature. Low bending strength, poor impact toughness, the blade is not easy to grind very shape.