Stainless steel parts processing requirements for tools

Stainless steel parts processing requirements for tools

When stainless steel parts are processed, the geometrical parameters of the tool should generally be considered from the choice of rake angle and back angle. When selecting the rake angle, factors such as the flute profile, the presence or absence of chamfering and the positive and negative angle of the blade inclination should be considered. No matter what kind of tool, a larger rake angle must be used when machining stainless steel. The clearance angle should not be too small, but it should not be too large. The clearance angle is too large, which reduces the wedge angle of the tool, reduces the strength of the cutting edge, and accelerates the wear of the tool. Generally, the relief angle should be appropriately larger than when processing ordinary carbon steel.
The material of the tool holder is required for the machining of stainless steel parts. The tool holder must have sufficient strength and rigidity to avoid chattering and deformation during the cutting process. This requires the selection of an appropriately large cross-sectional area of ​​the tool holder, and the use of higher-strength materials to manufacture the tool holder, such as the use of quenched and tempered 45 steel or 50 steel.
When processing stainless steel parts, the requirements for the cutting part of the material by the tool. When processing stainless steel, the material of the cutting part of the tool is required to have higher wear resistance and can maintain its cutting performance at a higher temperature. Currently commonly used materials are: high-speed steel and cemented carbide.
According to the manufacturer of stainless steel parts processing, because high-speed steel can only maintain its cutting performance below 600°C, it is not suitable for high-speed cutting, but is only suitable for processing stainless steel at low speeds. Since cemented carbide has better heat resistance and wear resistance than high-speed steel, tools made of cemented carbide materials are more suitable for the cutting of stainless steel