The Effect of High Speed ​​Machining Skills on Machine Tool Mold Industry

With the continuous growth of processing machines, cnc systems, and numerical control tools and other related technologies, with the rapid development of processing and manufacturing, high-speed machining technology has been increasingly applied to the machining and manufacturing of machine tools and molds.
High-speed cutting results in significant changes in the quality of the cutting process. The metal removal rate per unit of power is increased by 30% to 40%, the cutting force is reduced by 30%, the cutting life of the cutting tool is improved by 70%, and the cutting heat remains in the workpiece. In the low range, low-order cutting vibrations almost disappeared. With the advancement of the cutting rate, the removal rate of the blank material per unit time has increased, the cutting time has been reduced, and the processing effect has been improved, thereby constricting the product manufacturing cycle and improving the market competitiveness of the product.
Cnc high-speed cutting and labor is one of the most pressing advances in the mold industry: manufacturing skills, is an efficient, high-quality, low-cost progressive manufacturing skills. Compared to boring cutting, the cutting rate and feed rate have greatly improved, and the cutting mechanism is not the same.
High-speed machining with a small amount of fast-forward cuts the cutting force. The high-speed squeezing of the chips cuts the cutting force and thermal stress deformation of the workpiece, and improves the rigidity and poor machining of thin-walled parts. Due to the low cutting force, the improvement of the speed of rotation makes the frequency of the cutting system work at a lower frequency than the machine tool's low-order natural frequency, and the appearance roughness of the workpiece is the quickest to the low-order frequency, which reduces the appearance roughness.
In the processing of the high hardened steel parts (HRC45~HRC65) of the die, high-speed cutting can replace the electrical machining and grinding and polishing processes, thereby forbidding electrode manufacturing and time-consuming electrical machining, and greatly reducing the fitter's Grinding and polishing amount. To deal with thin-walled mold parts that are more and more necessary in the market, high-speed milling can also be completed smoothly, and at the center of high-speed milling CNC machining, the molds can be set up once to complete multi-step machining.
The high-speed machining skills have had a tremendous impact on the machining process of machine tools and molds, changing the tedious and long process flow of “annealing→milling→heat treatment→grinding” or “electric pulse processing→hand polishing and polishing” adopted in boring mold processing. Even high-speed cutting can replace all the original processes.
In addition to the high-speed machining capability, which can be applied to the direct machining of hardened mold cavities (especially semi-finishing and finishing), it has also been widely used in EDM electrode processing and rapid prototyping. Massive production practice has proved that the application of high-speed cutting technology can reduce the manual grinding time of about 80% in the subsequent processing of the mold, save the increase of nearly 30% of the people-oriented costs, the mold surface processing accuracy of up to 1m, the cutting efficiency of the tool can be increased by 1 times.

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