What are the principles of aluminum alloy cnc processing?

Aluminum alloy CNC machining has great advantages over manual machining. For example, aluminum alloy parts produced by CNC machining are very accurate and repeatable; aluminum alloy CNC machining can produce parts with complex shapes that cannot be completed by manual machining. What are the principles of aluminum alloy CNC processing?







(1) In order to ensure the precision of aluminum alloy CNC machining, rough and finish machining should be carried out separately. Because the amount of cutting is large during rough machining, the cutting force and clamping force on the workpiece are large, the heat generation is large, and the machined surface has a significant work hardening phenomenon, and there is a large internal stress inside the workpiece. Continuously, the precision of the parts after finishing will be quickly lost due to the redistribution of stress. For some parts that require high machining accuracy. After rough machining and before finishing, low temperature annealing or aging treatment procedures should also be arranged to eliminate internal stress.

(2) Reasonably select aluminum alloy CNC processing equipment. Rough machining is mainly to cut off most of the machining allowance and does not require high machining accuracy. Therefore, rough machining should be carried out on a machine with greater power and less precision, and the finishing process requires higher precision. Machine tool processing. Rough and fine machining are processed on different machine tools, which can not only give full play to the equipment's capabilities, but also prolong the service life of precision machine tools.

(3) In the aluminum alloy cnc processing process route, heat treatment process is often arranged. The position of the heat treatment process is arranged as follows: In order to improve the cutting performance of the metal, such as annealing, normalizing, quenching and tempering, etc., it is generally arranged before mechanical processing. In order to eliminate internal stress, such as aging treatment, quenching and tempering treatment, etc., it is generally arranged after rough machining and before finishing. In order to improve the mechanical properties of parts, such as carburizing, quenching, tempering, etc., it is generally arranged after machining. If there is a large deformation after heat treatment, the final processing procedure must be arranged.
Correct operation and maintenance are one of the key factors for the correct use of aluminum alloy CNC processing equipment. Correct operation and use can prevent abnormal machine tool wear and avoid sudden failures; daily maintenance, equipment maintains good technical conditions, and delays the deterioration process , Discover and eliminate hidden troubles in time, and ensure safe operation all the time.