Method for manufacturing abrasive pattern arrangement brazed grinding wheel based on laser pre-fusion covering

Abstract

The invention discloses a method for manufacturing an abrasive pattern arrangement based on laser pre-fusion covering. The method includes the steps that firstly, a work face of a grinding wheel base body is coated with binding agents; secondly, a laser focusing spot is driven to conduct scanning and fusion covering heating on the binding agents according to the abrasive arranged patterns, and therefore the binding agents heated by lasers are melted and form a fixedly-connected fusion covering layer with the grinding wheel base body; thirdly, the binding agents not heated through laser fusion covering are removed, the upper surface of the fusion covering layer is cut to be flat, and therefore the thickness of the fusion covering layer is consistent; and fourthly, abrasives are scattered and planted on the work face of the grinding wheel base body, the grinding wheel base body is subjected to heating, heat preservation and cooling in sequence, the abrasives located on the fusion covering layer are bonded to the fusion covering layer, and finally the abrasives not bonded to the fusion covering layer are removed. The advantage that numerical control is used for driving the lasers to conduct local selective fusion covering is sufficiently utilized so that manufacturing of grinding discs with complex abrasive patterns arranged can be achieved; melting and connecting of diamond are achieved through the fixed-thickness binding agent fusion covering layer, and therefore the grinding characteristic of the grinding wheel is effectively improved; and the problem about positioning and the problems of mesh blocking and the like generated during template and screen method implementation are solved, and the manufacturing efficiency is greatly improved.

Description

technical field [0001] The invention relates to a method for making abrasive patterns and arranging brazed grinding wheels based on laser pre-cladding, which belongs to the field of abrasive tool preparation. Background technique [0002] Grinding is the main processing method for precision forming and high-quality surface of mechanical parts, and it is widely used in efficient and precise processing of metals, ceramics, optical crystals and other materials. For grinding processing, the grinding wheel is extremely important to the processing process and the surface quality of the processed workpiece as well as the processing cost, and is the key to efficient and precise grinding technology. Since grinding actually achieves the overall removal of workpiece material through the removal of a small amount of material by many abrasives solidified on the surface of the grinding wheel, the distribution of abrasives on the surface of the grinding wheel has a great impact on the perf...

AI Technical Summary

Problems solved by technology

However, there are still many problems, which are mainly reflected in: (1) Due to the influence of the production of mesh screens and orifice plates, complex pattern arrangements are difficult to achieve; (2) The method of mesh screens and orifice plates is mainly used in the grinding of flat grinding discs preparation, but obviously helpless for the preparation of grinding wheels with shapes such as arc surfaces; (3) due to the small holes in mesh screens and orifice plates, it is difficult to coat bonding agents and abrasives, so the efficiency of existing methods is very low

Because of this, although the abrasive pattern arrangement has been proposed for many years, it is still unable to see the large-scale impact

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