Indexable hard alloy shallow hole drilling method and drilling blade

A cemented carbide insert, cemented carbide technology, applied in drilling/drilling equipment, drilling, drilling tool accessories, etc., can solve the problems of wear, chipping drilling tools, etc. Good cutting resistance and wear resistance

Inactive Publication Date: 2010-11-10
ZHUZHOU HUARUI PRECISION CUTTINGS TOOLS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This drilling method can effectively solve the problem that the uneven surface of the rail leads to chipping of the drill or the rapid wear of the drill due to the surface material

Method used

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  • Indexable hard alloy shallow hole drilling method and drilling blade
  • Indexable hard alloy shallow hole drilling method and drilling blade
  • Indexable hard alloy shallow hole drilling method and drilling blade

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Experimental program
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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] From attached Figure 1-3 It can be seen that the present invention is an indexable cemented carbide shallow hole drilling method, which relates to an end hole processing method on a steel rail, adopting a combined drilling tool to drill holes, and passing the cemented carbide blade 13 through the groove The positioning method is that the fastening device 11 is installed on the cutter body 12 to form a combined cemented carbide drill, and then the combined cemented carbide drill is used for drilling. The combined cemented carbide drill is formed by combining two parts of a cutter body 12 and a cemented carbide blade 13, and the cemented carbide blade 13 is stuck on the cutter body 12 through a slot 14, and then fixed by a fastening device 11 on the blade body 12. The cemented carbide inserts 13 are integral indexable inserts. The cemented carbide inserts 13 ha...

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PUM

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Abstract

The invention relates to an indexable hard alloy shallow hole drilling method and a drilling blade. A combined-type drilling tool is used for drilling holes. A hard alloy blade is positioned through a groove and is installed on a cutter body through a tightening device to form a combined-type hard alloy drilling tool which is used for drilling holes. The combined-type hard alloy drilling tool is combined by the cutter body and the hard alloy blade, wherein the hard alloy blade is clamped on the cutter body and is fixed on the cutter body by the tightening device. The hard alloy blade is an integral indexable replaceable blade, is a flaky structure and is rotatably and symmetrically distributed by taking the rotating central axis of the drilling tool as a symmetrical line. Two reverse counter bores are symmetrically distributed on the two surfaces of the hard alloy blade by taking the rotating central axis as a symmetrical line. The front end part of the cutter body is provided with a through groove. The hard alloy blade is installed in the through hole of the cutter body and is fixed on the cutter by using tightening screws which penetrate through the counter bores of the blade. End holes of rails are machined through the integral hard alloy blade embedded into the front end part of the cutter body.

Description

technical field [0001] The invention relates to a drilling method and a cutting blade, in particular to a method for processing a shallow hole with a cemented carbide cutting blade and the drilling cutting blade. Background technique [0002] In mechanical processing, drilling is a major machining method, accounting for about 25% of the total mechanical processing; the drilling refers to the use of drilling tools to perform drilling on the device that needs to be drilled; Therefore, the drilling tool used for drilling is the key to the entire drilling process. At present, there are many drilling tools for drilling, but the drilling tools (or called drill flowers) made of high-speed steel are still the main drilling tools. Although the drilling tools made of high-speed steel are cheap and easy to make, they are not Wear-resistant, easy to wear, and short service life, so when drilling deep holes or holes requiring high precision, the drilling tools made of high-speed steel a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00
Inventor 肖旭凯秦满
Owner ZHUZHOU HUARUI PRECISION CUTTINGS TOOLS CO LTD
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