Introducing our latest innovation, the Heavy Big Large High Precision Mechanical CNC Turning200mm. This state-of-the-art machine is designed to revolutionize your manufacturing process, offering unparalleled precision and efficiency. With a massive turning capacity of 200mm, it can effortlessly handle large-scale projects with utmost accuracy. Equipped with advanced CNC technology, it guarantees flawless results every time. Its heavy-duty construction ensures durability and longevity, making it a reliable investment for your business. Say goodbye to time-consuming manual labor and welcome the future of machining with our Heavy Big Large High Precision Mechanical CNC Turning200mm.
As we all know, magnesium alloy Die Casting refers to melting magnesium alloy ingots from fixed to liquid, which are formed in a die casting machine through a mold. In the process of magnesium alloy processing, damage due to residual stress, clamping force and cutting will cause magnesium alloy deformation, how to control magnesium alloy deformation?
First, magnesium alloy processing technical specifications:
Separate roughing and finishing, remove most of the allowance in the roughing stage, for frame type magnesium alloy parts, especially thin-walled type parts, you can use the method of pasting damping materials to reduce the cutting vibration deformation during processing, consider the shock absorption treatment of the processing process, reduce the cutting residue and temperature difference, arrange artificial or natural aging and corresponding tempering heat treatment between roughing and finishing operations, in order to release the internal force of the part as much as possible and reduce the signs of deformation after processing.
Optimize the magnesium alloy processing process, heat treat the parts after the rough machining is completed, fully release the cutting stress and residual stress of the parts, and then carry out finishing, which greatly improves the processing quality of the parts. Separation and finishing offer the following advantages:
(1) Reduce the influence of residual stress on processing deformation. After roughing is completed, the stress caused by the roughing of the part can be removed by heat treatment, and the effect of stress on the finishing quality can be reduced.
(2) Improve processing accuracy and surface quality. Roughing and finishing are separated, finishing is only a small margin of processing, processing stress and deformation is very small, can greatly improve the quality of parts.
(3) Improve production efficiency. Since roughing only removes excess material and leaves enough margin for finishing, it does not take into account dimensions and tolerances, and effectively brings out the performance of different types of machine tools and improves cutting efficiency.
Second, adjust the magnesium alloy processing parameters:
The use of large front angle, generally y = 20 ° ~ 30 °, rough machining to take a smaller value, finishing when a = 10 ° ~ 15 ° as = 60 ° ~ 75 °, large edge inclination angle can increase the cutting force, at the same time, to consider the wear of the back rake face and the influence of cutting force, therefore, control the wear of the tool surface, maintain the sharpness of the tool is also an effective way to reduce the cutting force, the main declination angle has a direct impact on the cutting force, reduce the main declination angle, increase the cutting depth and the ratio of the tool volume to the cutting area has a good effect on the heat dissipation of the cutting area, Generally, the main declination angle is hy=30°~45°.
Third, choose the appropriate magnesium alloy processing cutting amount:
Using high-speed milling technology to process magnesium alloy materials, the cutting heat is basically taken away by the chips, and you can also appropriately choose the large pass volume, large cutting depth, etc.
At present, many companies will choose high-speed machining in magnesium alloy processing, and its advantages: high efficiency, high precision and high coding quality, low cutting temperature and low cutting force.
In the process of magnesium alloy machining and cutting, the main factors affecting the surface quality of the workpiece are the accumulation edge, phosphorus spike, vibration, the sharp quality of the cutting edge, the defects of the workpiece material and the use of cutting fluid, etc., and high-speed cutting is compared with ordinary cutting. The cutting depth is large, the material deformation speed is fast, the strain rate is large, and it is not easy to produce accumulation edges and phosphorus spines.
At the same time, due to the fast cutting speed, most of the cutting heat is taken away by the chips, the cutting surface is too late, can not produce plastic deformation, can control the stress generated in the high-speed machining process in a small range, which provides possible technical support for high-precision magnesium alloy processing, and greatly shortens the processing cycle while ensuring the dimensional accuracy and surface quality of the parts.
The above are the two major skills of magnesium alloy polishing skills and the use of magnesium alloy processing process to control the deformation of parts due to processing, can efficiently control magnesium alloy processing, resulting in deformation, improve the yield of spare parts. Magnesium alloy is characterized by small density and high hardness, and is loved by CNC processing manufacturers, but magnesium alloy processing technology still faces great difficulties. Of course, Shenzhen Nobo Intelligent Manufacturing is still overcoming difficulties in this field, seeking continuous self-innovation and breakthroughs.
Dongguan ganzoo Prototype Manufacturing Co., Ltd. is a solution provider focusing on prototypes, high-precision parts, molds, on-demand manufacturing and other one-stop services. Is an expert in Stamping Auto Spare Parts,Air Spring Shock Absorber,Auto Spare Parts Fabrication,Precision Sheet Metal, if you are interested in our services or need any technical support, welcome to contact us Ms.Becky+8613006687216, we are happy to share our understanding of Plastic Injection Molding with you and provide solutions for your economical injection molding.
Contact Now
