Abstract In recent years, automobile knives have been continuously innovating and moving forward along the road of “three highs and one specializationâ€, and have never stopped progressing, which is undoubtedly the most gratifying. Especially in the "efficient" aspect has made great progress, compared with the original, processing efficiency...
In recent years, automotive knives have been continuously moving forward along the road of “three highs and one specializationâ€, and have never stopped progress, which is undoubtedly the most gratifying. In particular, it has made great progress in terms of “high efficiencyâ€, and the processing efficiency has increased by more than 25% compared with the original. In terms of tool materials, cemented carbide will maintain steady growth, the market share of high-speed steel will further shrink, and super-hard materials will increase with the change of processed workpiece materials, and the growth rate will increase steadily, but for a short time. Inside, the dominant position is still cemented carbide. The changes in automotive tools in the “three high and one special†(high efficiency, high precision, high reliability and specialization) are developing with the rapid development of the automobile manufacturing industry. The continuous improvement of the automobile manufacturing production program and the improvement of the processing cycle have led to the accelerated development of new technologies in the tool manufacturing industry. The tools have been transformed from low-value consumables into high-value, high-tech products. The progress made in tool materials, tool coatings, tool structures, tool cutting parameters, etc. are among the crystallization of modern technology. The development of new tool materials, wear-resistant coatings, tool structures and digital manufacturing technologies has been applied in actual production. The cutting speed of machining is 4000m/min, the spindle speed is 15000-20,000r/min, etc. It is a common parameter; the development of composite multilayer, gradient structure and nanostructure in coating technology accelerates the use and promotion in actual production. The new development of the knife-assisted structure guarantees the process satisfaction of the machining process and the shortening of the adjustment time, such as the tool bar application of Mapal's quick change HFS10; the tool change time of the CNC machining center is shortened, etc. are all three high ones. "Special" changes.
It should be said that the processing tools of automobile cover moulds have changed a lot in the past ten years. First, there are many varieties. Any one of the largest tool manufacturers has been refined according to the different needs of customers, and provide more options as much as possible. There are more choices for different processing environments; secondly, the quality has been greatly improved, especially in the service life and processing accuracy of the tool; third, the price of the tool is also constantly improving.
At present, cars, especially cars, are increasingly joining the ordinary families in China. As domestic and foreign automobile manufacturers set up and transfer automobile production bases to China more and more quickly, the more tools used in automobile powertrains The more common it is. Its own characteristics and future development are also increasingly concerned by the industry. As the powertrain manufacturing tends to be lighter, simpler in structure, and higher in performance, the powertrain manufacturing technology and process have also undergone great changes. High speed, high efficiency, and flexibility are the main features of the manufacturing process, which is also consistent with The production requirements of many varieties and small batches of the modern automobile industry. As a very important part of the powertrain manufacturing technology, the characteristics of the mainstream automotive powertrain tools are now more and more responsive to the production requirements of the modern automobile industry. The specific performance is: from the powertrain requirements, the high Quality, high stability, high efficiency; from the technical point of view, high speed, composite, specialization, standardization, multi-variety, heavy load. The automotive industry tools are developing in the future with advanced tools such as tool integration, tool environmental protection and tool outsourcing management.
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