Manhart What is the impact of workpiece material on the parameter adjustment of CNC punching machine?

The material of the workpiece has a significant impact on the parameter adjustment of the CNC punching machine, which is reflected in the following aspects:
1、 Cutting performance
1. Hardness: The hardness of the workpiece material directly affects the selection of cutting tools and the setting of cutting parameters. For example, for difficult to machine materials such as hard alloys, it is necessary to choose tool materials with good wear resistance, and appropriately reduce cutting speed and feed rate to reduce cutting force and cutting temperature, reduce tool wear, and ensure machining quality. On the contrary, for soft materials such as aluminum alloys, faster cutting speeds and feed rates can be chosen to improve processing efficiency.
2. Plasticity: The plasticity of the workpiece material determines its deformation ability during the cutting process. Materials with good plasticity are prone to plastic deformation during the punching process, so it may be necessary to increase the depth of punch pressing and cutting depth to ensure the depth and accuracy of punching. Meanwhile, for materials with good plasticity, it is also necessary to appropriately reduce the punching speed to avoid excessive punching speed causing deformation of the workpiece or damage to the cutting tool.
2、 Tool life
The hardness and cutting performance of the workpiece material directly affect the wear and service life of the cutting tool. For materials with high hardness, the friction and wear between the cutting tool and the workpiece will intensify during the cutting process. Therefore, it is necessary to choose tool materials with good wear resistance and appropriately reduce the cutting speed and feed rate to extend the tool life.
3、 Processing quality and precision
The influence of workpiece material on machining quality and accuracy is mainly reflected in the cutting force and cutting temperature during the cutting process. For materials with higher hardness, the cutting force is greater and the cutting temperature is higher, which can easily lead to a decrease in the surface quality of the workpiece and a decrease in machining accuracy. Therefore, it is necessary to adjust cutting parameters according to the characteristics of the workpiece material, control cutting force and cutting temperature, and ensure machining quality and accuracy.
The specific impact figures are as follows:
For difficult to machine materials such as hard alloys, it is recommended to control the cutting speed between tens to hundreds of revolutions per minute, and the feed rate should also be appropriately reduced.
For soft materials such as aluminum alloys, the cutting speed can be adjusted to between several hundred to several thousand revolutions per minute, and the feed rate can also be appropriately increased.
In summary, the influence of workpiece material on the parameter adjustment of CNC punching machine is mainly reflected in cutting performance, tool life, machining quality and accuracy. When adjusting parameters, it is necessary to comprehensively consider factors such as the hardness, plasticity, and cutting performance of the workpiece material, and select appropriate tool materials and cutting parameters to ensure the stability and efficiency of the machining process.