NC Machining Method of Magnesium Alloy Castings

Mon Jul 18 15:01:30 CST 2022

Today's CNC machining technology has been widely used in machinery manufacturing, and has been more widely used in aviation industry systems. In recent years, with the progress and development of science, in the field of manufacturing, both in terms of equipment conditions and technical support, it has provided a good development space for the development of CNC machining technology. Magnesium alloys are widely used in aircraft control systems due to their light weight, good manufacturability, and ease of machinability. In the casting process of magnesium alloys, the traditional method of sand casting is still used. Due to the large casting tolerance and the deviation of casting benchmarks, CNC machining has brought great difficulties. Due to the low strength of ZM5 material, poor corrosion resistance, ignition point Low and other characteristics, process control is required during processing.

                                                                   

The numerical control machining method of the large-scale integral magnesium alloy casting of the present embodiment, comprises the following steps: the outer contour size of the part taken is 700mm × 620mm × 400mm, the X, Y, Z axis travel of the machine tool is 8000mm × 3000mm × 1000mm, and the A swing angle is 8000mm × 3000mm × 1000mm. ~+100°, C swing angle is -360. ~+360°, the tooling used is 820mmX 700mmX 300mm. On the surface, the machining stroke of the machine tool can process the part, but due to the large change of the profile angle of the part, the part is overtraveled during the actual machining of some positions. For the part of overtravel, the VERICUT software has relevant prompts in the system comment area, and through relevant means, the program name and part of the overtravel can be checked. When there is interference between the machine tool, tooling and parts during processing, the system will prompt that an axis interferes, and at the same time, the axis will be displayed in red.