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Minitype diamond-tooth milling cutter and processing technology thereof

A processing technology and milling cutter technology, applied in the field of diamond-tooth milling cutter and its processing technology, can solve the problems that the milling cutter is not suitable for processing multi-layer printed circuit boards, and is not suitable for processing milling cutters with extremely small outer diameters, etc. The effect of good quality, guaranteed milling strength and high surface accuracy

Inactive Publication Date: 2011-07-13
ZHEJIANG RICHVERTEX PRECISION TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is that the milling cutter processing technology in the prior art is not suitable for processing milling cutters with extremely small outer diameters, and then a kind of processing technology that can realize milling cutters with small outer diameters is provided;
[0006] The second technical problem to be solved by the present invention lies in the fact that the milling cutters in the prior art are not suitable for processing the tiny slots of multilayer printed circuit boards, and then provide a milling cutter with high strength, good sharpness and reasonable chip space The miniature rhombic tooth milling cutter suitable for micro-slot machining

Method used

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  • Minitype diamond-tooth milling cutter and processing technology thereof
  • Minitype diamond-tooth milling cutter and processing technology thereof
  • Minitype diamond-tooth milling cutter and processing technology thereof

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Embodiment Construction

[0032] The invention provides a kind of processing technique of processing miniature rhomboid milling cutter, comprises the following steps:

[0033] (1) Grinding of the shank of the milling cutter: the bar of the selected material is roughly ground to After semi-finishing Finally, through fine grinding, the outer diameter of the end of the rod is ground to and polished smooth;

[0034] (2) Determine the length and end chamfer of the milling cutter head;

[0035] (3) Rough grinding of the milling cutter head: grind the outer diameter of the milling cutter head at the determined position to

[0036] (4) Semi-finishing of the spiral groove: cutting the spiral groove of the milling cutter head to Through the semi-finishing step, the consistency of the blade size can be accurately guaranteed, laying the foundation for the accuracy of the blade size after processing in the subsequent process;

[0037] (5) Grinding of the spiral groove: According to the designed angle, th...

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Abstract

The invention belongs to the field of milling cutters, in particular to a minitype diamond-tooth milling cutter which is used for processing the minitype slotted hole of a multilayer printed wiring board, and a processing technology thereof. On the basis of the prior art, a step of semi-accurately cutting a spiral groove is added in the processing technology, and thus the cutting mill with the minimum external diameter can be favorably processed. The invention also provides a minitype diamond-tooth milling cutter which is suitable for processing the minitype slotted hole of the multilayer printed wiring board; the helical angles of the left spiral groove and the left spiral groove are respectively 18-22 degrees; and the external diameter phi d of the head of the milling cutter is 0.4-0.7mm. Under the condition that the external diameter of the milling cutter is smaller, a proper spiral angle is chosen; force borne by the head of the milling cutter is reduced while chip removal space is reasonably designed; the phenomenon of excessive wearing or'snapping' because force borne by the head of the milling cutter is too big is avoided; and the milling cutter still has bigger milling strength. The minitype diamond-tooth milling cutter and the processing technology thereof can be used for processing minitype slotted holes.

Description

technical field [0001] The invention belongs to the field of milling cutters, and in particular relates to a diamond-toothed milling cutter for processing micro-slot holes of multilayer printed circuit boards and a processing technology thereof. Background technique [0002] In recent years, with the continuous update and development of the electronic information field, various electronic products are constantly updated, such as LCD TVs, business mobile phones, digital cameras, small notebook computers, etc., which are increasingly showing high integration, diversification, high Intelligent trend. The realization of this trend not only depends on the development of electronic components, but also depends on the upgrading of printed circuit boards. Printed circuit boards are divided into two types according to their application fields: "mother board" carrying semiconductor components and "carrier board" as semiconductor packaging. The manufacturing technology of the former ...

Claims

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Application Information

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IPC IPC(8): B23C5/10B23P15/34B24B3/06
Inventor 王辉
Owner ZHEJIANG RICHVERTEX PRECISION TOOLS
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