What should you pay attention to when processing stainless steel?
1. During processing, the calorific value of cutting tools and tools is high, and the cutting tools are easy to wear. Therefore, there must be certain requirements for the cutting tools, and they must be wear-resistant and high-temperature resistant. At the same time, make sure the cutting edge is sharp and choose a reasonable angle.
2. The speed is slow and the force is large during cutting. Production efficiency is not high.
3. The calorific value is high, so the choice of cooling oil is very important. Sulfur chloride is generally used. The effect is better.
4. Drilling deep holes and tapping are difficult.
5. To process stainless steel, workers must have certain experience and excellent skills.
Stainless steel processing properties:
1-Stainless steel has large shaping and high toughness when cutting, consumes a lot of energy during cutting, and has high cutting temperature. Stainless steel has low thermal conductivity and poor heat dissipation, which can easily lead to tool high temperatures; stainless steel has strong adhesion and weldability, and it is easy to form built-up edge during the cutting process; stainless steel has a strong tendency to work harden, and a hardened layer is easy to form on the cutting surface; stainless steel is not easy to break chips, and the cutting process It is easy to get clogged and affects the smoothness of the processed surface.
2-Stainless steel cutting tools: rake angle, the rake angle is not easy to be too large, generally 12--30°; front, grinding a crescent-shaped chip guide on the front can improve cutting conditions; rear angle, for carbide turning tools, the rear angle It should be 6--10°. For high-speed steel turning tools, the relief angle should be 8--12°; the main declination angle should be 60--75°; the secondary declination angle should be 8--20°; during rough turning, it should be Greater than zero, it should be less than zero during finishing turning; tool tip radius is generally 0.2--0.8mm.
3-Cooling lubrication in stainless steel cutting: Use lubricants with good cooling and lubrication properties, such as vulcanized oil, extreme pressure emulsified oil, spindle oil, oleic acid or vegetable oil, etc.
