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Preparation process of laser welding saw blade

A technology of laser welding and preparation technology, which is applied in the direction of sawing machine tool manufacturing, manufacturing tools, metal sawing equipment, etc., to achieve the effects of low production cost, narrow kerf, and good cutting sharpness

Active Publication Date: 2020-12-25
江苏华昌工具制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the main problems existing in the existing products and their preparation technology, the object of the present invention is to provide a preparation process for laser welding saw blades

Method used

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  • Preparation process of laser welding saw blade
  • Preparation process of laser welding saw blade
  • Preparation process of laser welding saw blade

Examples

Experimental program
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Effect test

preparation example Construction

[0028] The specific preparation process of the laser welding saw blade of the present invention is as follows:

[0029] 1) Ingredients: According to the composition ratio, select a suitable nickel-based solder metal binder, add diamond particles, and pre-mix to form a molding material. A three-dimensional mixer is used for mixing, and the mixing time is 50 minutes to obtain a molding material;

[0030] 2) Cold pressing: adjust the tooling mold, first load the cutter head matrix, and then put in the molding material and assemble it into the cold pressing forming mold for press molding to obtain the diamond cutter head blank;

[0031] 3) Vacuum sintering: put the diamond blade blank into the mold, heat and sinter under vacuum conditions, the sintering temperature is 1010-1030°C, and the vacuum degree is 4.0×10 -4 Pa;

[0032] 4) Laser welding: deburr and arc-grind the brazed and sintered diamond cutter head; then perform laser welding on the laser welding equipment to connect ...

Embodiment 1

[0038] In this embodiment, the laser welding saw blade is prepared by the method of the present invention. Specifically, the saw blade of this embodiment is formed by heating and sintering nickel-based brazing filler metal and diamond particles under vacuum conditions. into, and the sintering temperature is 1020°C, the vacuum degree is 4.0×10 -3 Pa. Wherein, the matrix of the diamond cutter head is 30CrMo material. The composition of described nickel base brazing filler metal bond, expressed with weight percentage (wt%), by Ni:78.0%, Cr:9.5%, Si:5.5%, B:3.5%, Fe:3.5%, all the other are trace Elemental composition. The batching of diamond particles and metal bond: expressed in weight percent (wt%), the concentration of diamond particles is 0.60ct / cm 3 , Diamond particles of different particle sizes and their proportions are: 35 / 40 accounts for 45%, 40 / 50 accounts for 30%, and the rest is nickel-based material accounting for 25%. The brazed and sintered diamond cutter head i...

Embodiment 2

[0040] In this embodiment, the laser welding saw blade is prepared by the method of the present invention. Specifically, the diamond cutter head of this embodiment is made of nickel-based solder metal bond and diamond particles under vacuum conditions, after heating and sintering made, and the sintering temperature is 1020°C, the vacuum degree is 4.0×10 -4 Pa. Wherein, the matrix of the diamond cutter head is 30CrMo material. The composition of described nickel base brazing filler metal bond, expressed with weight percentage (wt%), by Ni:80.0%, Cr:8.5%, Si:4.5%, B:3.5%, Fe:3.5%, all the other are trace Elemental composition. The batching of diamond particles and metal bond: expressed in weight percent (wt%), the concentration of diamond particles is 0.65ct / cm 3 , Diamond particles of different particle sizes and their proportions are: 35 / 40 accounts for 45%, 40 / 50 accounts for 30%, and the rest is nickel-based material accounting for 25%. The brazed and sintered diamond cu...

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Abstract

The invention discloses a preparation process of a laser welding saw blade, and belongs to the technical field of preparation of material cutting machining tools. The laser welding saw blade comprisesa saw blade base body and a plurality of diamond tool bits evenly distributed on the outer edge of the saw blade base body; each diamond tool bit is composed of a tool bit base body on the inner sideand a tool bit brazing layer on the outer side; a concave notch groove is formed in each of the two sides of each diamond tool bit in the radial direction of the saw blade base body so that chip removal can be facilitated during cutting machining; each diamond tool bit of the saw blade is formed by brazing and sintering a metal bonding agent and diamond particles under the vacuum condition; and then a laser welding method is adopted to weld the diamond tool bits with the saw blade base body. The laser welding saw blade prepared through the method has the advantages that the diamond particlesand the tool bit base bodies are firmly combined, the tool bits and the saw blade base body are reliably connected, the process is simple, and the cost is low.

Description

technical field [0001] The invention relates to the technical field of preparation of material cutting tools, in particular to a preparation process of laser welding saw blades, the prepared laser welding saw blades are used for metal materials such as steel bars and steel plates and non-metallic materials such as cement, concrete, granite, wall and floor tiles, etc. Cutting of metal materials. Background technique [0002] In the current market, diamond saw blades are widely used in the cutting, grinding and trimming of metal materials such as steel bars and steel plates, and non-metallic materials such as cement, concrete, granite, and wall and floor tiles. Reducing the production cost of the product, continuously improving the cutting efficiency of the product during cutting, improving the cutting sharpness and service life of the saw blade, reducing material loss, and ensuring the safety of cutting processing have always been the goals pursued by this field. The laser w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23D65/00
CPCB23D65/00
Inventor 蒋武峰
Owner 江苏华昌工具制造有限公司
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