In terms of tool materials, superhard tool materials such as CBN (cubic boron nitride), PCD (polycrystalline diamond) tools and new carbide tools have been widely used due to the increased demand for automotive parts. Among the tool materials selected by domestic car users, the most used are carbide tools, accounting for 64.1%.
With the development of superhard tools, hard turning is becoming popular as an economical alternative to grinding. Compared with the first survey, the use rate of super-hard tools has been significantly improved. For example, the machining of cylinder bores has adopted cubic boron nitride inserts in the semi-precision and finishing processes, and the cutting speed has reached a new height. The tool life is also greatly extended.
The automobile industry adopts large-volume and assembly line production, and the processing conditions are relatively fixed, which imposes very demanding requirements on the processing efficiency, service life and stability of the tool. In recent years, with the large application of lightweight materials in the automotive industry, such as aluminum alloys, composite materials, etc., the application of diamond tools has also increased significantly: as in the processing of some parts of the gearbox housing, the original used carbidesé•—The knife is changed to a diamond tool, and the tool life can be increased to tens of thousands of pieces. The economic benefit is very obvious. Due to its extremely high hardness, diamond tools have a very high service life when processing aluminum workpieces and other non-ferrous metals and their alloys. In addition, ceramic knives are also a promising tool that is currently being used in the automotive industry due to its high hardness and competitive price. L-carnitine price hand cream slimming cream best concealer which brand good eyeliner night cream what brand of good wrinkle day cream which brand is good
Tool structure
Here is a brief talk about indexable tools. The indexable tool has been promoted in China for many years and is progressing smoothly, but the development is still unbalanced. The user coverage in this survey is still lower than the overall tool and welding tool. However, the technology of indexable cutting tools in China has made new progress in the process of promotion, and the application potential of rapidly increasing varieties is very large.
The machining of modern automobile manufacturing and the tool technology used in it are developing rapidly. High-tech is widely used. In the aspects of machining technology, cutting method, tool structure, tool material, tool coating, etc. The difference. New tool structures and inserts with new cutting edges and geometries have been continuously researched and developed to accommodate tool holders for CNC machine tools and high-speed machining and their connection to machine tools such as HSK tool holders, hot-sleeve holders, hydraulics Tool holders and other new tool holders are widely used. In order to improve production efficiency and reduce tool change time, various composite tools, such as drill collar compound, drill hinge compound, drilling and threading compounding, are increasingly used in the processing of automotive parts. The unfolding tool meets many special machining requirements, and some tools have even evolved into a machine, electric and hydraulic integrated device, which has far surpassed the traditional tool concept.
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