Method for finishing V-shaped sharp angle of metal-base diamond grinding wheel by electrical discharge grinding in gas

Abstract

The invention discloses a method for finishing a V-shaped sharp angle of a metal-base diamond grinding wheel by electrical discharge grinding in gas. The method for finishing the V-shaped sharp angle of the metal-base diamond grinding wheel by electrical discharge grinding in gas comprises steps of: fixing a diamond grinding wheel tool on a grinding wheel shaft, fixing electrodes on a horizontal plane, and forming a discharging loop by using a lead, a pulse power supply, an electrographite brush and the diamond grinding wheel tool; performing contact discharge grinding in gas to the right side of the diamond grinding wheel tool, wherein the diamond grinding wheel tool moves from left to right along the axial direction of the grinding shaft while moving from bottom up along with the grinding wheel shaft in a vertical plane perpendicular to the horizontal plane so as to form a V-shaped traveling path with a left side which inclines upwards; and switching the direction of the diamond grinding wheel tool, wherein grinding wheel tool moves from right to left along the axial direction of the grinding shaft while moving from bottom up along with the grinding shaft so as to form a V-shaped traveling path with a right side which inclines upwards, and performing contact discharge grinding in gas to the left side of the diamond grinding wheel tool. According to the method for finishing the V-shaped sharp angle of the metal-base diamond grinding wheel by electrical discharge grinding in gas, the finishing ratio of the V-shaped sharp angle of the superhard metal-base diamond grinding wheel can be greatly improved, and no cooling liquid difficult to treat is needed.

Description

Technical field [0001] The invention relates to the technical field of fine and precise manufacturing of superhard tools, in particular to a mechanical manufacturing technology of micro-grooves or micro-cone array functional surfaces of hard and brittle workpieces such as monocrystalline silicon, ceramics, glass, cemented carbide and the like. Background technique [0002] Using micro-nano-level grooves and cone-tower array structure surface instead of the traditional smooth surface of parts can produce more and updated functional characteristics. However, the micro-processing of the micro-nano structure surface mainly relies on micro-processing methods such as light, electron beam, ion beam, and chemical corrosion. At present, it has been found that the efficiency of these etching processing methods is extremely low, the production cycle is very long, and accompanied by environmental problems such as difficult etching liquids, dangerous gases, and radio frequency power. [0003] ...

AI Technical Summary

Problems solved by technology

[0003] Metal-based diamond grinding wheel tools can be used to mechanically shape the microstructure functional surface of hard and brittle materials, with high processing efficiency, low cost, and no corrosive liquid. However, metal-based diamond grinding wheel tools are difficult to be trimmed into high-precision, sharp V-shaped sharp corners, moreover, grinding stone dressing method is less efficient

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