How to improve the accuracy of thin-walled plastic parts machining?
Thin-walled plastic parts processing accuracy, often due to its material properties and structural complexity and difficult to ensure. So, how to improve the accuracy of thin-walled plastic parts processing?
First, choose the appropriate processing equipment
For thin-walled plastic parts, it is recommended to use high-speed, high-precision CNC machine tools for processing. This machine tool has good rigidity, fast dynamic response, can effectively reduce the impact of cutting force on the workpiece, thereby improving machining accuracy. In addition, the machine's CNC system should also have good stability and reliability to ensure the stability of the machining process.
Second, reasonable tool selection
For thin-walled plastic parts, the recommended use of sharp, wear-resistant tool. Sharp tools can reduce the cutting force, reduce the cutting heat, thereby reducing the error in the machining process; and wear-resistant tools can ensure a long service life, to avoid machining errors caused by tool wear.
Third, optimize the cutting parameters
Cutting speed, feed rate and depth of cut are the main cutting parameters that affect machining accuracy. Generally speaking, the faster the cutting speed, the smaller the feed rate, the shallower the depth of cut, the higher the machining accuracy. However, the selection of these parameters needs to be adjusted according to the specific workpiece material, shape and size to achieve the best machining results.
Fourth, the use of appropriate fixtures and clamping methods
For thin-walled plastic parts, it is recommended to use pneumatic or hydraulic fixtures for clamping. This fixture has a large clamping force, clamping stability, can effectively prevent vibration and deformation during processing, thereby improving processing accuracy. At the same time, the clamping method should be as simple and fast as possible to reduce the clamping error.
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