High temperature alloys are “sticky” during machining, which means that the material exhibits strong adhesion during the cutting process and is easy to adhere to the tool. This phenomenon is mainly caused by the following reasons:
High strength and toughness: High temperature alloys still maintain high strength and high toughness at high temperatures, resulting in the material not being easy to break during cutting and easy to stick to the tool.
Work hardening: High temperature alloys are prone to work hardening during cutting, increasing cutting resistance and further aggravating adhesion.
High temperature performance: Even at high temperatures, high temperature alloys still maintain high strength, resulting in increased cutting temperatures and the material is more likely to adhere to the tool.
Chemical affinity: Some high temperature alloys have a high chemical affinity with tool materials and are prone to chemical reactions during cutting to form an adhesion layer.
Influence
Tool wear: The adhesion layer will accelerate tool wear and reduce tool life.
Surface quality: Adhesion will cause the workpiece surface to be rough and affect precision.
Increased cutting force: Adhesion will increase cutting force and affect processing efficiency.
Solution
Choose the right tool: Use tool materials with high wear resistance and chemical stability, such as ceramic or coated tools.
Optimize cutting parameters: adjust cutting speed, feed rate and cutting depth to reduce adhesion.
Use cutting fluid: effectively cool and lubricate, reduce cutting temperature and reduce adhesion.
Improve tool geometry: optimize tool design to reduce adhesion.
Through these measures, adhesion can be effectively reduced during high-temperature alloy processing, improving processing efficiency and quality.