Manufacturing method of LED aluminum substrate V-shaped groove

Abstract

The invention relates to a manufacturing method of LED aluminum substrate V-shaped groove. The method sequentially comprises the steps of aluminum substrate surface treatment; blue gum covering, aluminum substrate shaping; V-CUT cutting, blue gum removing, and the like. According to the invention, when V-CUT cutting is carried out, cutting is carried out by using common FR4 mill. When the mill operates in high speed, high temperature generated by cutting can rapidly melt the blue gum. The molten gum can wrap approximately 2 / 3 of the V-shaped groove area, and can be hardened and cooled rapidly. Irregular aluminum scraps are condensed on the blue gum, and are prevented from being condensed on aluminum surface of the V-shaped groove. When the blue gun is torn off, the aluminum craps on the blue gum is completely removed, such that the shaped V-shaped groove satisfies a quality standard. The method provided by the invention has the advantages of low cost and easy realization.

Description

technical field [0001] The invention relates to the technical field of PCB manufacturing, in particular to a V-shaped groove processing method on an aluminum substrate. Background technique [0002] Because the aluminum of the aluminum substrate is a metal material, in the V-CUT cutting production, the aluminum chips cannot be successfully removed through high-speed operation, large chip removal and alcohol cooling like the formed double-edged milling cutter, and the normal FR4 milling cutter is used for cutting. The V-shaped groove of the aluminum substrate will generate high temperature due to cutting, and the aluminum chips will not be channeled by the chip discharge groove. The high temperature will instantly bind the aluminum chips to the V-shaped groove, resulting in an irreparable quality defect - V-pit burrs. Therefore, manufacturers of aluminum substrates in the same industry all purchase high-priced V-CUT cutting knives for aluminum substrates, otherwise they will ...

AI Technical Summary

Problems solved by technology

[0002] Because the aluminum of the aluminum substrate is a metal material, in the V-CUT cutting production, the aluminum chips cannot be successfully removed through high-speed operation, large chip removal and alcohol cooling like the formed double-edged milling cutter, and the normal FR4 milling cutter is used for cutting. The V-shaped groove of the aluminum substrate will generate high temperature due to cutting, and the aluminum chips will not be guided by the chip discharge groove. The high temperature will instantly bind the aluminum chips to the V-shaped groove, resulting in irreparable quality defects --- V pit burrs

Therefore, manufacturers of aluminum substrates in the same industry purchase high-priced special V-CUT cutting knives for aluminum substrates, otherwise they will not be able to make V-shaped grooves

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