How to improve the high quality of precision machining point

How to improve the high quality of precision machining point

How to improve the quality of precision machining? Find out the main factors causing the processing error (original error) is the link, but how to take responsive technical measures to control or reduce the impact of these factors? Let's inquire about how to effectively improve the quality of precision machining four methods:

One, and the error compensation method This method is to artificially create a new original error, which can offset the original error inherent in the original process system, so as to achieve the purpose of reducing the processing error and machining accuracy.

Two, the error transfer method In essence, this method is to transfer the geometric error, force deformation and thermal deformation of the process system to the direction that does not affect the machining accuracy. For example, for the multistation process with division or transposition or the process of using transposition knife frame, the conversion error will directly affect the machining accuracy of the related surface of the parts.

Three, the error homogenization method This method exercises the kindly connected surface between each other, corrects each other, or exercises the mutual benchmark for processing. It can make those local large errors more symmetrical to affect the whole processing surface, so that the processing error transmitted to the surface of the workpiece is more symmetrical, so the processing accuracy response of the workpiece is greatly improved.

 Four, direct error reduction method

This method is a more widely used basic method in the production. This method is to directly eliminate or reduce the main original error factors affecting the machining accuracy. For example, the turning of the slender shaft bends the work due to the influence of force and heat. Now it adopts the "big straight knife reverse cutting method", which basically eliminates the bending caused by the cutting force. supplemented by spring top, can further eliminate the harm of thermal elongation.