Machining cutter

A machining and cutting tool technology, applied in the field of cutting tools, can solve the problems of weak bonding force between diamond coating and cemented carbide substrate, large difference in thermal expansion coefficient between coating and substrate, and no bonding force of diamond coating cutting tool, etc., to achieve The effect of low scrap rate, reduced inspection frequency and long service life

Inactive Publication Date: 2018-12-07
CONPROFE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with polycrystalline diamond tools and diamond-coated tools, the latter has problems such as weak bonding between the diamond coating and the cemented carbide substrate, and a large difference in thermal expansion coefficient between the coating and the substrate, resulting in internal stress. Coating peeling is prone to occur during milling, leading to coating failure
The hardness and wear resistance of existing polycrystalline diamond tools are lower than those of diamond-coated tools due to the addition of binders, but there is no serious bonding force problem with diamond-coated tools, but polycrystalline diamond tools with more The processing tool is difficult to process, and cannot meet the requirements of high precision and long life
At present, there are few reports on poly machining tools with a large number of blades (the number of blades is greater than or equal to 10)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] A kind of machining cutter, comprises polycrystalline diamond cutter head 100 and knife handle 200; Polycrystalline diamond cutter head 100 comprises base layer 110 and polycrystalline diamond layer 120, and one end of base layer 110 is fixedly connected with handle 200 by welding, The other end of the base layer 110 is sintered and pressed together with the polycrystalline diamond layer 120 to realize a fixed connection; at the end of the polycrystalline diamond layer 120 away from the base layer 110, 70 polycrystalline diamond cutting edges 121 are evenly distributed in a ring shape, adjacent polycrystalline diamond Chip flutes 122 are formed between the crystalline diamond cutting edges 121 . The polycrystalline diamond layer 120 has an end face and a side face connected with the end face, and 70 polycrystalline diamond cutting edges 121 are formed by cutting one by one on the polycrystalline diamond layer 120 by laser, so that the polycrystalline diamond layer 120 an...

Embodiment 2

[0093] A kind of machining cutter, comprises polycrystalline diamond cutter head 100 and knife handle 200; Polycrystalline diamond cutter head 100 comprises base layer 110 and polycrystalline diamond layer 120, and one end of base layer 110 is fixedly connected with handle 200 by welding, The other end of the base layer 110 is sintered and pressed together with the polycrystalline diamond layer 120 to realize a fixed connection; at the end of the polycrystalline diamond layer 120 away from the base layer 110, 62 polycrystalline diamond cutting edges 121 are evenly distributed in a ring shape, adjacent polycrystalline diamond Chip flutes 122 are formed between the crystalline diamond cutting edges 121 . The polycrystalline diamond layer 120 has an end face and a side connected to the end face, and 62 polycrystalline diamond cutting edges 121 are formed by cutting the polycrystalline diamond layer 120 one by one by laser, so that the polycrystalline diamond layer 120 and the 62 p...

Embodiment 3

[0101] A kind of machining cutter, comprises polycrystalline diamond cutter head 100 and knife handle 200; Polycrystalline diamond cutter head 100 comprises base layer 110 and polycrystalline diamond layer 120, and one end of base layer 110 is fixedly connected with handle 200 by welding, The other end of the base layer 110 is sintered and pressed together with the polycrystalline diamond layer 120 to realize a fixed connection; at the end of the polycrystalline diamond layer 120 away from the base layer 110, 56 polycrystalline diamond cutting edges 121 are evenly distributed in a ring shape, adjacent polycrystalline diamond Chip flutes 122 are formed between the crystalline diamond cutting edges 121 . The polycrystalline diamond layer 120 has an end face and a side face connected with the end face, and 56 polycrystalline diamond cutting edges 121 are formed by cutting one by one on the polycrystalline diamond layer 120 by laser, so that the polycrystalline diamond layer 120 an...

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Abstract

The invention discloses a machining cutter which comprises a polycrystalline diamond cutter bit and a cutter handle connected with the polycrystalline diamond cutter bit. 56 to 70 polycrystalline diamond cutting edges are annularly and uniformly distributed at one end, far away from the cutter handle, of the polycrystalline diamond cutter bit; and a chip groove is formed between each two adjacentpolycrystalline diamond cutting edges. The machining cutter provided by the invention is good in wear resistance, long in service life, high in workpiece processing efficiency, and short in processingtime; and the product processed by the machining cutter is good in dimensional stability, so that the detection frequency is reduced, and the rejection rate is low.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a machining tool. Background technique [0002] Diamond tools have the characteristics of extremely high hardness and wear resistance, high thermal conductivity, low thermal expansion coefficient, low friction coefficient, and low affinity with non-ferrous metals, which enable them to obtain high processing accuracy and processing efficiency in high-speed cutting. The processing characteristics of diamond tools are determined by the crystal structure of diamond. In diamond crystals, each carbon atom forms a covalent bond with four adjacent carbon atoms, and has a regular tetrahedral structure in space. The carbon atoms of this structure The binding force between them is extremely high, and it shows extremely high hardness on the macroscopic scale. [0003] At present, diamond tools mainly include monocrystalline diamond (MCD) tools, polycrystalline diamond (PCD) tools and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28D1/18B24D7/18B24D7/00B23P15/34B24D18/00
Inventor 颜炳姜李伟秋林一松
Owner CONPROFE TECH GRP CO LTD
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