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We all know that in the aviation field, in order to reduce the weight of the aviation parts themselves, a large number of aluminum alloy materials will be used. However, in the precision machining of aluminum alloy, due to the relatively large expansion coefficient of the material, deformation is easy to occur in the process of thin-walled processing, especially when free forging blanks are used, the machining allowance is large, and the problem of deformation is more prominent. . So next, the Xiehe processing manufacturer will briefly introduce the skills of aluminum alloy precision processing.

1. Causes of processing deformation

There are actually many reasons for the deformation of aluminum alloy parts, which are related to the material, the shape of the part, and various production conditions, such as the performance of the cutting fluid. To sum up, it roughly includes the following points, that is, the internal stress deformation of the blank, cutting force, cutting heat and deformation caused by clamping.

2. Technological measures to reduce processing deformation:

To reduce the internal stress of the blank

We can use natural or artificial aging and vibration treatment, which can partially eliminate the internal stress of the blank. Pre-processing is also an effective process method. Compared with the larger blank, due to the large allowance, the deformation after processing is also large. If we pre-process the excess part of the blank and reduce the margin of each part, it can not only reduce the processing deformation in the subsequent process, but also release part of the internal stress after pre-processing and placing it for a period of time.

The above content is part of the skills of aluminum alloy precision machining, and I hope it can be helpful to everyone. If you want to know more about aluminum alloy precision machining, please call the Xiehe processing manufacturer, and we will answer your questions one by one.