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Additive manufacturing method for diamond tool

A diamond tool and additive manufacturing technology, which is applied in the direction of manufacturing tools, metal processing equipment, welding equipment, etc., can solve the problems of short life of diamond tools and serious diamond graphitization, etc., reduce heat input, improve bonding strength, laser The effect of beam energy reduction

Inactive Publication Date: 2017-09-12
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of short life of laser brazing single-layer diamond tools, severe diamond graphitization in the laser brazing process, and orderly arrangement of multi-layer diamond tools, and propose a multi-layer orderly arrangement of abrasive grains. Additive manufacturing method of diamond tool with small thermal influence of diamond abrasive grains and prepared diamond tool

Method used

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  • Additive manufacturing method for diamond tool
  • Additive manufacturing method for diamond tool
  • Additive manufacturing method for diamond tool

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Embodiment Construction

[0041] The following will be combined with Figure 1-5 The technical solutions of the embodiments of the present invention are described in detail.

[0042] Such as figure 1 As shown, the equipment used in this embodiment mainly includes a laser brazing system and a jetting system.

[0043] The injection system includes a feeder hopper 11 , a feeder 13 (a screw feeder is used in this embodiment), a vacuum chamber 14 , a feeding pipe 16 , and a spray gun 19 connected in sequence. The feeder 13 is also connected with a controller 12 , the vacuum chamber 14 is connected with a vacuum generator 15 , the vacuum generator 15 is provided with a conveying gas inlet 17 , and the spray gun 19 is provided with an atomizing gas inlet 18 .

[0044] The laser brazing system includes a laser generator (not shown), a powder feeding device and a laser brazing working head 6 connected to the laser generator. A coaxial nozzle 5 is arranged on the periphery of the laser brazing working head 6. ...

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Abstract

The invention relates to an additive manufacturing method for a diamond tool. The method includes the steps that a diamond abrasive particle layer is formed at first; then a thin laser brazing layer is formed on the upper surface of the diamond abrasive particle layer, and the step is executed repeatedly until multiple thin laser brazing layers are formed on the upper surface of the diamond abrasive particle layer to cover diamond abrasive particles; the steps are repeated, and accordingly (N-1) laser brazing diamond abrasive particle layers are obtained; and an Nth laser brazing diamond abrasive particle layer is obtained, the laser brazing process is completed, and thus the laser brazing diamond tool with N layers of abrasive particles is prepared. The invention further relates to the diamond tool prepared through the method. According to the additive manufacturing method for the diamond tool, paraxial jet diamond abrasive particles are adopted for conducting multi-layer laser brazing, burning loss oxidation and graphitization of the diamond abrasive particles in the brazing process are avoided, the service life of a laser brazing diamond grinding wheel is prolonged, and orderly distribution and automatic production of the abrasive materials can be realized easily.

Description

technical field [0001] The present invention relates to a method for processing a diamond tool, in particular to a method for additive manufacturing of a diamond tool and the obtained diamond tool. Background technique [0002] In metal bond diamond tools, three types of single-layer brazing, electroplating and multi-layer sintering are mostly used: (1) single-layer brazing diamond tools are mainly brazed in a vacuum furnace, high-frequency induction brazing and laser brazing, For brazing in a vacuum furnace, for larger diamond tools, it is difficult to control the amount of deformation when the substrate is heated as a whole, and the production cycle is long, the time cost and energy consumption cost are high, and the diamond abrasive grains are in a high temperature environment for a long time The risk of thermal damage is increased, and it is also difficult to realize the tool manufacturing whose deformation is not easy to control when the substrate is subjected to overal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00B23K1/005B23K1/20
CPCB23K1/0008B23K1/0056B23K1/20
Inventor 张明军李晋禹胡永乐唐昆张健毛聪
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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