Precision machinery processing enterprises of cutting tool is commonly used in the metal cutting is how to choose the basic processing method in the modern mechanical processing, in addition to the excellent machine tool equipment, tool is directly involved in the object, the cutting tool material and cutting tool machining
performance of the underlying factors, especially in precision machinery parts processing enterprises, the cutting tool performance is good or bad influence on the machining efficiency and machining quality, machining cost a lot.
So we should attach importance to the correct selection of tool materials and reasonable use, pay attention to the development of new cutting tool materials and the development trend, make it better for precision machinery processing factory work.
In metal parts processing, the performance of the cutting tool material should have included: 1.
High hardness and high wear resistance;
Sufficient strength and impact toughness;
High wear resistance, thermal conductivity and coefficient of expansion of small;
Good manufacturability and economy.
What are commonly used in mechanical processing cutting tool material?
Carbon tool steel, alloy tool steel, high-speed steel, cemented carbide, etc.
Carbon tool steel and alloy tool steel because of their poor heat resistance, is used only for hand tools.
For high speed steel and carbide with much more now.
Now much of precision machinery processing factory in introducing the characteristics and USES of high speed steel and alloy steel.
High speed steel, strength and toughness is higher in the existing tool material.
The manufacturing process is simple, easy to ground into sharp cutting edges, forging, heat treatment deformation is small, the current in the complex tools such as twist drill, tap, broach, gear cutting tools and forming cutter manufacturing, still occupies the main position.
Cemented carbide, tungsten carbide is a high strength of refractory metal compounds of powder, make binder with cobalt or nickel and other metal sintering of powder metallurgy products, including high temperature carbon content than high speed steel, in precision machinery parts processing, the vast majority of the lathe tool, end milling cutter and part of the end mill USES its manufacturing, cutting speed is high, is one of the main tool material.
But because of its poor manufacturability, for complex cutting tool is limited by a lot of.
The above information is derived from the shenzhen hardware mechanical processing factory.
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