Precision aluminum alloy parts processing

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Today, I will talk to you about the deformation problems and preventive measures during the processing of aluminum alloy parts. With the development of the electronics industry, aluminum alloy thin-walled cavity parts are increasingly used. These parts have the advantages of light weight and compact structure. However, such parts have always had difficulties such as long processing cycle, high processing cost, and difficulty in controlling the machining accuracy. The reason is that during the processing of such parts, the metal removal amount is large, the rigidity is low, the strength is weak, and it is easy to produce large deformation, and it is difficult to ensure the processing precision and surface quality of the parts after processing. Analyze the reasons for the deformation of this type of parts, study and discuss the process of controlling and reducing the deformation of aluminum alloy thin-walled cavity parts.

The main factor affecting the machining accuracy and surface quality of aluminum alloy thin-walled cavity parts is that they are easily deformed during processing. Solving the deformation problem of aluminum alloy thin-walled cavity parts during processing, the working efficiency of milling of such parts can be improved, the precision and quality of parts can be improved, and the rapid production of products can be realized.

Analyze the processing process of aluminum alloy thin-walled cavity parts. These parts are generally processed by aluminum alloy plates. These parts have large metal removal and low rigidity. They will be damaged due to residual stress, clamping force and cutting during processing. Three factors of motion cause deformation.

Aluminum alloy polishing (2)

During the formation of the metal material, the arrangement of the metal crystals is not neatly arranged in an ideal state. The size and shape of the crystals are not the same, and the original residual stress exists, which is slowly released over time, and a certain deformation occurs. In addition, during the metal cutting process, the plastic deformation of the cutting and the frictional heat between the tool and the workpiece cause a large temperature difference between the processed surface and the inner layer, generating a large thermal stress and forming a thermal stress plastic deformation.

The deformation produced during the metal cutting process is not caused by a single cause. It is often a combination of several reasons, and this combination is not constant during the processing. As the processing progresses, which one? The reason has the greatest influence on the deformation, and it is difficult to judge. It can only be started from the cause of the deformation, and the corresponding process is adopted to minimize the processing deformation.

When it comes to the final part processing, there is a lot of randomness, and we can only take preventive measures at any time and the time of rework. After all, the customer is delivered on time and delivered on time. If the extension is not good for both parties. I hope this article can help everyone.