Superhard three-edge milling blade

Abstract

The invention discloses a superhard three-edge milling blade. The superhard three-edge milling blade comprises a blade body; the blade body is provided with an upper surface, a lower surface and side surfaces connected between the upper surface and the lower surface; a center hole penetrating through the upper surface and the lower surface is formed in the center of the blade body in the thickness direction of the blade body; the projection of the blade body on the plane is roughly in a parallelogram shape; the at least one of the four side surfaces of the blade body is provided with a cutting edge part and a sinking groove which are formed on a superhard material body in a laser processing manner; and each cutting edge part is defined by a first front tool face, a second front tool face, a side face and the upper surface or the lower surface. The superhard three-edge milling blade can provide powerful guarantee for high-speed, high-efficiency and high-precision groove milling, and has the characteristics that the economy is high, the chip control is good, effective reduction of cutting force is effectively reduced, and the blade is easy to replace.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a superhard three-sided edge milling insert. Background technique [0002] Now, machinery manufacturing is developing in the direction of high speed, high efficiency, high precision, and automation. The requirements for the performance stability and service life of cutting blades are getting higher and higher. With the continuous innovation of cutting tool materials, superhard tool materials have emerged. There is a new way to meet the high-speed, high-efficiency, and high-precision processing requirements. [0003] Common superhard cutting tool materials are PCBN (polycrystalline cubic boron nitride) and PCD (polycrystalline diamond), which are filled with mixed powder of CBN (cubic boron nitride) or diamond and binder and cemented carbide substrate into the seal In the box, while sintering under high temperature and high pressure conditions, it is combined with the subst...

AI Technical Summary

Problems solved by technology

There is no circulation of super-hard three-sided edge milling inserts with grooves on the market, mainly because the super-hard materials on the composite sheet used to make super-hard inserts, such as PCBN and PCD, are more difficult to process than conventional cemented carbide materials. Inserts with grooves are more difficult to process. Through grooves can still be ground by grooving, but 3D grooves cannot be completed by conventional processing methods.

In the field of grooving processing, customers usually require higher cutting speed in order to pursue high efficiency. Conventional carbide inserts are not hard enough, which makes the front and rear facets of the tool wear faster, while superhard flat inserts, without grooves, chip Difficult to control, leading to chip jamming. Therefore, these two types of blades are likely to cause poor surface finish, shortened blade life, shortened blade replacement cycle, relatively reduced production efficiency, and cannot meet the increasing demands of customers.

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