The machining precision of carbon steel boxes breaks new limits. The CNC dynamic compensation technology leads the industry upgrade.

Recently, news of a technological breakthrough has emerged in the field of domestic high-end equipment manufacturing: A precision machinery enterprise has successfully controlled the CNC machining accuracy of carbon steel boxes within 0.02 millimeters through innovative research and development, reaching the international leading level. This technological achievement not only solves the problem of machining deformation of large and complex boxes but also provides crucial support for the localization substitution of the core components of numerically controlled machine tools and automated equipment. As the "skeleton" of industrial mother machines, the machining accuracy of carbon steel boxes directly affects the overall performance of the equipment. In traditional machining, factors such as the release of internal stress in the material, thermal deformation, and vibration are likely to cause dimensional deviations of the box. After three years of research, the technical team of this enterprise has developed a "three-dimensional dynamic error compensation system". During the machining process, it can monitor the deviation of the tool path in real time, predict the deformation trend by combining finite element analysis, automatically correct the feed parameters through the numerical control program, and form a closed-loop control. "We creatively transplanted the thermal deformation control algorithm for the machining of aviation aluminum alloy to carbon steel materials. By establishing a database of material properties and a machine learning model, the system can intelligently identify the accuracy fluctuations under different working conditions," introduced Engineer Wang, the project leader. This technology has increased the positional accuracy of the hole system of the box by 40%, and the flatness is controlled within 0.015mm/m², effectively solving the contradiction in traditional processes where "the higher the accuracy, the higher the rejection rate". According to verification, in the continuous operation test of heavy-duty numerically controlled machine tools, the spindle vibration of the carbon steel boxes using the new process has decreased by 35%, and the noise of the transmission system has dropped by 28%. The first batch of 50 mass-produced high-end CNC machining centers has been supplied to a leading domestic new energy vehicle enterprise. The user feedback shows that the positioning accuracy of the equipment has reached 98% of that of similar German products, but the delivery cycle has been shortened by 40%. Industry insiders analyze that this technological breakthrough not only promotes the independent control of precision machining equipment but also lays the foundation for the localization of key components in high-end manufacturing fields such as 5G communication base stations and industrial robots. With the upgrading of the intelligent manufacturing industry, CNC machining technology with micron-level control capabilities will become a "new track" for competition in high-end equipment.