Problems needing attention in CNC machining of aluminum parts?

The CNC machining of aluminum parts is a relatively high-precision process.  In the process of CNC aluminum parts, the following issues should be paid attention to:

1.  Ensure the accuracy of CNC machine tools.  CNC machine tools are the carrier of CNC machining of aluminum parts.  Ensuring the accuracy of CNC machine tools is an important foundation.

2.  The choice of tool, the tool is the top priority of cnc processing, and a good tool can achieve twice the result with half the effort.  Aluminum CNC machining high-speed steel knives and special aluminum alloy knives are ideal choices.

3.  When machining aluminum parts, the tool speed should be selected with high speed and high feed processing method, and the allowance should be less.  Because aluminum alloy is relatively soft compared to steel, it is easy to stick to the knife when the speed is low, and it will also reduce the processing efficiency.  If it is finishing, it is necessary to ensure the smoothness of the aluminum parts, and the feed can be appropriately reduced.

4.  Selection of cutting fluid.  Although cutting fluid is only an auxiliary material in CNC machining of aluminum parts, the selection of cutting fluid is also very important.  Semi-synthetic cutting fluid should be used for cnc machining of aluminum profiles, which is helpful for smooth chip removal.

5.  Reduce the amount of deformation after cutting.  Such problems are often encountered in the CNC machining of aluminum parts.  The accuracy is very high when the measurement is just finished, but a slight deformation occurs after a while.  Although it is invisible to the naked eye, it can be found that the dimensional tolerance has become larger by measuring it with a testing tool.  This situation is a kind of stress deformation.  In order to reduce the stress deformation, we need to reduce the vibration during the machining process, and add a process to eliminate internal stress after rough machining before finishing.  This can alleviate the situation of processing deformation.

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