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Drilling cover plate with double-sided metal materials

A double-sided metal and cover plate technology, applied in metal layered products, metal processing equipment, drilling/drilling equipment, etc., can solve the problems of drill needle slippage, high hardness of aluminum substrate, broken needle, etc. The effect of hole accuracy and accuracy

Inactive Publication Date: 2013-09-25
叶云照
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, although the above-mentioned structure can achieve the expected purpose, in actual implementation, because the lubricating layer on the uppermost layer of the metal cover plate will be melted by heat to lubricate the drill, so when the drill touches the lubricating layer, it cannot pass through the lubricating layer. The layer achieves a good effect of guiding the drilling needle to go down, so that once it touches the underlying aluminum substrate again, due to the high hardness of the aluminum substrate, it is easy to make the drilling needle slip and the hole shifts or the needle breaks

Method used

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  • Drilling cover plate with double-sided metal materials
  • Drilling cover plate with double-sided metal materials

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Embodiment Construction

[0027] see figure 1 , figure 2 , the content of the accompanying drawing is an embodiment of the entry plate for drilling with double-sided metal material of the present invention, which is composed of a metal bottom layer 1, a soft metal surface layer 2 and a bonding layer 3, so that the drilling is used After the cover plate is arranged on a printed circuit board 4, the drilling needle 5 is used for drilling.

[0028] The bonding layer 3 is disposed between the metal bottom layer 1 and the soft metal surface layer 2 for combining the metal bottom layer 1 and the soft metal surface layer 2 .

[0029] The hardness of the soft metal surface layer 2 is less than the hardness of the metal bottom layer 1, the thickness of the soft metal surface layer 2 is smaller than the thickness of the metal bottom layer 1, and the hardness value of the Shore hardness D of the soft metal surface layer is between 10 and 30 , the hardness value of the Shore hardness D of the metal bottom layer...

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Abstract

The invention relates to a drilling cover plate with double-sided metal materials. The drilling cover plate comprises a metal bottom layer, a soft metal surface layer and a bonding layer, wherein the bonding layer is arranged between the metal bottom layer and the soft metal surface layer, and is provided for bonding the metal bottom layer and the soft metal surface layer.

Description

technical field [0001] The present invention relates to a drilling entry plate with double-sided metal materials, especially a design with the topmost layer being a soft metal material, so as to achieve the purpose of guiding the drill needle and reduce the deviation caused by the drill needle when drilling. Influenced by stable drilling accuracy and accuracy. Background technique [0002] In recent years, electronic products tend to be light and thin, multi-functional and high-speed development, which has caused a sharp increase in the number and density of micro-holes in printed circuit boards. Based on this trend, the effects of drilling quality, hole position accuracy and drill bit life are still Important indicators, however, traditional auxiliary plates such as traditional aluminum foil or phenolic resin cover plates are no longer suitable for the application of this requirement. If you use it reluctantly, it will easily break the needle, hole deviation and drill bit w...

Claims

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Application Information

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IPC IPC(8): B32B15/01B32B7/12B23B49/00B23B47/00B23Q11/10
Inventor 叶云照洪汉祥曹家玮张中浩
Owner 叶云照