What Type of Cutting Tool Is Used for Processing Stainless Steel Parts

What type of cutting tool is used for processing stainless steel parts, and what are the basic requirements? The tool model is generally YW, YT is for processing steel parts, and YG is for processing castings.

1、 The requirements for the geometric parameters of cutting tools during the processing of stainless steel parts should generally be considered in terms of the selection of front and back corners. When selecting the front corner, factors such as the chip groove type, the presence or absence of chamfers, and the magnitude of the positive and negative angles of the blade inclination angle should be considered. Regardless of the type of cutting tool, a larger front angle must be used when processing stainless steel. The selection of the back angle should not be too small, but it should also not be too large. If the back angle is too large, it will reduce the wedge angle of the tool, reduce the strength of the cutting edge, and accelerate the wear of the tool. Usually, the back corner should be slightly larger than when processing ordinary carbon steel.

2、 When processing stainless steel parts, the requirements for the surface roughness of the cutting part of the tool can be improved. Improving the surface smoothness of the cutting part of the tool can reduce the resistance when chips form curls and improve the durability of the tool. Compared with processing ordinary carbon steel, when processing stainless steel, the cutting amount should be appropriately reduced to slow down tool wear; At the same time, it is necessary to choose appropriate cooling and lubricating fluids in order to reduce cutting heat and cutting force during the cutting process, and extend the service life of the tool.

3、 The requirements for the material of the tool holder during the processing of stainless steel parts require that the tool holder must have sufficient strength and rigidity to avoid vibration and deformation during the cutting process. This requires selecting an appropriately large cross-sectional area of the tool holder, and also using materials with higher strength to manufacture the tool holder, such as quenched and tempered 45 steel or 50 steel.

4、 When processing stainless steel parts, the material requirements for the cutting part of the tool are required. When processing stainless steel, it is required that the material for the cutting part of the tool has high wear resistance and can maintain its cutting performance at higher temperatures. The commonly used materials currently include high-speed steel and hard alloy.

5、 Due to the fact that high-speed steel can only maintain its cutting performance below 600 ° C, it is not suitable for high-speed cutting and is only suitable for processing stainless steel at low speeds. Due to the better heat resistance and wear resistance of hard alloys compared to high-speed steel, tools made of hard alloy materials are more suitable for cutting stainless steel.

To improve the surface quality of stainless steel parts, hard alloy cutting tools should be used for machining. The cutting amount should be slightly lower than that of general carbon steel workpieces, especially the cutting speed should not be too high. Generally, it is recommended to have a cutting speed of Vc=60-80m/min, a cutting depth of ap=4-7mm, and a feed rate of f=0.15-0.6mm/r.