High TG panel PCB non-metallization half-hole CNC machining method

Abstract

The invention relates to a high TG panel PCB non-metallization half-hole CNC machining method. The high TG panel PCB non-metallization half-hole CNC machining method comprises the following steps thatfirstly, a milling cutter is selected, and the milling cutter with the cutter diameter being 1.5 mm is selected; secondly, parameters are set, the rotation speed of the milling cutter is 34 krpm, thecutter advancing speed is 2.6 m/min, the cutter lowering speed is 0.6 m/min, the cutter retreating speed is 3m/min, and the PCB stack number is set to be 4pnl/stack; and thirdly, milling cutter routing path advancing is conducted, the parameters in the second step are set in forming equipment, and the feed procedure is conducted on multiple half holes in a PCB in a folded line feed manner according to the machining parameters. When CNC machining is conducted on the PCB through the method, particularly for the non-metallization half holes, burr generation can be prevented, the manual deburringlink is reduced, the machining efficiency is greatly improved, cost is reduced, and the quality risk is reduced; and the traditional milling cutter routing path advancing manner is changed, and a good promoting function is achieved for industry development.

Description

technical field [0001] The invention relates to a non-metallized semi-hole CNC processing method for high TG plate PCB. Background technique [0002] In the process of PCB production, due to the particularity of the material of the high TG board, when the cutting angle, strength and cutting speed of the milling cutter are not properly controlled during CNC machining, it is easy to cause continuous cutting of glass fiber cloth (especially non-metallized half holes, especially At the position where the knife comes out), the residues on the PCB are called burrs, and the method of removing burrs needs to be removed with a special brush, which is an additional small process, and it is easy to cause scratches on the board surface, resulting in quality risks and increasing costs. . Contents of the invention [0003] The object of the present invention is to provide a non-metallized semi-hole CNC processing method for high TG plate PCB. [0004] A non-metallized semi-hole CNC pr...

AI Technical Summary

Problems solved by technology

[0002] In the process of PCB production, due to the particularity of the material of the high TG board, when the cutting angle, strength and cutting speed of the milling cutter are not properly controlled during CNC machining, it is easy to cause continuous cutting of glass fiber cloth (especially non-metallized half holes, especially At the position where the knife comes out), the residues on the PCB are called burrs, and the method of removing burrs needs to be removed with a special brush, which is an additional small process, and it is easy to cause scratches on the board surface, resulting in quality risks and increasing costs.

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