Home > Position : News > News

CNC machining of camera aluminum alloy shell parts

Date:2021-09-03 Author: Times:10561

   With regard to the aluminum alloy housing parts of the camera, the application is more and more extensive in the industrial field and daily life. With the expansion of the scope of application and the increase in the number of applications, the requirements for the processing quality of the aluminum alloy housing of the camera are also getting higher and higher. For this reason, the processing technology and processing quality of the aluminum alloy housing of the camera have attracted more and more attention. Shenzhen Lixin-imachining, who has been engaged in the aluminum alloy housing of camera for a long time, has explored in actual production and summed up effective methods to reduce deformation during the processing of aluminum alloy housing.

微信截图_20210929121945.png

    For the poor rigidity of the camera aluminum alloy shell workpiece, the deformation can be reduced by perfecting the fixture, stuffing and other methods.

 For thin-walled camera aluminum alloy shell workpieces, three-jaw self-centering chucks or spring chucks cannot be used to clamp from the radial direction, because once the workpiece is loosened after processing, the workpiece will be deformed. Therefore, the method of pressing the axial end face with better rigidity should be fully utilized to reduce the deformation of the workpiece. Use the inner hole of the part for positioning. It is recommended to make a threaded mandrel and insert it into the inner hole of the part, and then use a cover plate to press the end face tightly with a nut for backing. Clamping deformation can be avoided when machining the outer circle, so that satisfactory machining accuracy can be obtained.

  When processing the workpiece of the camera aluminum alloy housing, it is recommended to use a vacuum chuck to obtain a uniform clamping force. During the processing, use a small amount of cutting to effectively prevent the workpiece from deforming.

According to Shenzhen Lixin-imachining's processing practice, the packing method can also be used for aluminum alloy shell processing. In order to increase the process rigidity of the shell workpiece, the inside of the workpiece can be filled with medium to reduce the large deformation of the workpiece during the clamping and cutting process. For example, pour the urea melt containing 3%-6% potassium nitrate into the workpiece, and after the processing is completed, immerse the workpiece in water or alcohol to dissolve the filler and pour it out.

If there are multiple cavities on the aluminum alloy housing parts of the camera, it is not advisable to process one cavity by cavity one by one, because it is easy to cause uneven stress and deformation of the parts. Multi-layer processing is adopted, and each layer is processed to all the cavities at the same time as much as possible, and then the next layer is processed to make the parts bear uniform force, so as to achieve the purpose of reducing deformation.

The workpiece of the aluminum alloy housing of the camera often deforms due to clamping during processing. In order to minimize the deformation of the workpiece, you can loosen the compression piece before the finishing process reaches the final size to restore the workpiece to its original state. , And then perform a slight compaction, whichever is just able to clamp the workpiece (completely based on personal experience), so as to ensure the ideal processing effect. Shenzhen Lixin-imachining's processing experience has proved that the clamping force should be applied to the supporting surface, and the clamping force should be applied in the direction of good rigidity of the workpiece. Under the premise of ensuring that the workpiece does not loosen, the smaller the clamping force, the better.

In addition, when processing the workpiece with the aluminum alloy shell of the camera, try not to let the milling cutter plunge directly into the part like a drill bit when processing the cavity, resulting in insufficient chip capacity of the milling cutter and unsmooth chip removal, which will cause the parts to overheat and expand. As well as the phenomenon of collapsed knife, broken knife and so on. Therefore, Shenzhen Lixin-imachining recommends to drill the hole with a drill of the same size or one size larger than the milling cutter, and then mill with the milling cutter, or select CAM software to produce the spiral cutter program, so as to reduce the deformation of the aluminum box shell workpiece and ensure Workpiece quality.

微信截图_20210929121233.png微信截图_20210929121014.png

Shenzhen Lixin-imachining believes that today, as the application range of camera aluminum alloy housings is expanding, as a camera aluminum alloy housing processing enterprise, it is necessary to improve the technical level of operators, and summarize different camera aluminum alloy housings according to the different uses and working environments of different workpieces. The processing techniques and methods can effectively improve the processing quality of the aluminum alloy housing of the camera.

Shenzhen Lixin-iMachining Co., Ltd.  

www.lixin-imachining.com 


Message