The processing difficulties of stainless steel parts are mainly reflected in the following aspects.
First of all, the hardness of stainless steel material is high, and the wear of the tool is large, which requires the processor to choose the appropriate tool material and tool parameters to reduce the tool wear and ensure the machining accuracy.
Secondly, the thermal conductivity of stainless steel is poor, and the heat generated during the cutting process is difficult to dissipate, which can easily lead to an increase in the temperature of the tool and affect the service life of the tool.
In addition, the plastic deformation of stainless steel is large, and it is easy to stick to the knife and work hardening during the machining process, resulting in the decline of the surface quality of the workpiece.
To address these challenges, processors need to take a number of measures.
First of all, choosing the right tool material and tool parameters is key. Generally speaking, cemented carbide tools or diamond tools should be selected, and the tool geometry parameters with negative rake angle and large rear angle should be used to reduce the cutting force and cutting heat.
Secondly, it is also very important to control the amount of cutting. According to the characteristics of stainless steel materials and cutting conditions, the processing depth and cutting speed should be reasonably selected to reduce the influence of cutting force and cutting heat on the tool.
In addition, coolant or gas can be used for cooling during machining to reduce tool temperature and improve the surface quality of the workpiece.
In short, the processing difficulties of stainless steel parts need to be solved by a series of measures taken by processors. The machining quality and efficiency of stainless steel parts can be effectively improved through reasonable selection of tool materials and parameters, control of cutting amount, and cooling by coolant or gas. At the same time, processors also need to continuously learn and explore new processing technologies and methods to cope with the ever-changing stainless steel materials and application scenarios.