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Feature of Cnc Machining Aluminum ,cnc aluminium machining:

1. Aluminum alloy has low hardness. Compared with other metal materials, aluminum alloy has lower hardness and good cutting performance, but due to its low melting point and high ductility, it is easy to fuse on the finished surface or tool, and it is prone to burrs, etc. Of course, heat treated or die cast aluminum alloys also have higher hardness. Generally, the HRC hardness of aluminum plate is usually 40 degrees lower than HRC. Therefore, in the case of machining aluminum alloys, the load of the tool is small. In addition, aluminum alloy has excellent thermal conductivity, so the cutting temperature of aluminum alloy milling is low, and the milling speed can be increased.

Aluminum alloys have low plasticity aluminum alloys with low plasticity and low melting point. When CNC machining aluminum alloys, joint edge problems are very deep, chip removal performance is poor, and surface roughness is high. In fact, CNC machining of aluminum alloys is mainly due to the ineffectiveness of knives and roughness. If the two problems of the fixed blade and the quality of the machined surface are achieved, the problem of aluminum alloy machining can be solved.

3. Tools are prone to wear due to the use of inappropriate tool materials, in the case of machining aluminum alloys, tool wear is often accelerated due to issues such as bar blade and chip discharge. If a tool with a negative rake edge shape is used, welding may occur on the cutting edge. While increasing the difficulty of handling, problems such as poor surface roughness and poor machining accuracy due to built-in edges can also cause problems. Therefore, you should choose a tool that minimizes cutting temperature, has a good rake surface roughness, and can discharge chips smoothly. Tools with sharp positive cutting edges and enough chip evacuation are best.

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