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Micro-textured BTA deep-hole drill bit and preparation process thereof

A deep hole drill and preparation process technology, applied in drilling/drilling equipment, manufacturing tools, boring/drilling, etc., can solve the problems of poor rigidity of the process system, neglect of the surface topography of the tool, etc., and reduce the cutting temperature. , Enhance the cooling and lubrication effect, reduce the effect of tool wear

Pending Publication Date: 2019-03-19
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] (4) The rigidity of the process system is poor
[0010] In the past, the research on the wear resistance of cutting tool materials mainly focused on the application of new materials, often ignoring the surface morphology of the cutting tool itself.

Method used

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  • Micro-textured BTA deep-hole drill bit and preparation process thereof
  • Micro-textured BTA deep-hole drill bit and preparation process thereof
  • Micro-textured BTA deep-hole drill bit and preparation process thereof

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Experimental program
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Effect test

Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0037] Such as figure 1 , as shown in 2, the micro-textured BTA drill bit is mainly composed of three parts: cutter body 1, guide block 2, and cutter teeth (which are respectively inner teeth 3, central teeth 4, and outer teeth 5 from top to bottom), and each cutter The teeth are staggered and there is a certain amount of overlap. There is a chip removal hole 6 in the middle of the cutter body 1. The diameter of the chip removal hole 6 is d 2 =(0.5~0.55)d, in order to ensure the smooth discharge of chips, the chip discharge hole 6 is designed as a bell mouth cone with a large outside and a small inside. Tangent to the circle, the inside diameter is tangent to the chip hole circle. The outer diameter of cutter body 1 is d 1 =(0.9~0.92)d, in order to ensure the accurate positioning of deep hole machining and facilitate quick loading and unloading, the connec...

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Abstract

The invention relates to a micro-textured BTA deep-hole drill bit and a preparation process thereof. A cutter body is included, the surface of the cutter body is provided with a guide block, the fracture surface of the cutter body is provided with cutter teeth, the cutter teeth include internal teeth, center teeth and external teeth from top to bottom, all cutter teeth are staggered, and a certainoverlap amount is reserved; and a chip removal hole is formed in the middle of the cutter body, the other end of the cutter body comprises a drill bit shank, the outer portion of the drill bit shankis provided with threads, and a micro-texture is arranged on the front cutter surface of the cutter teeth. By means of the micro-textured BTA deep-hole drill bit and the preparation process, through the surface topography innovation of the micro-texture, the new micro-texture deep-hole drill bit with high durability is designed, and the purpose of reducing cutting heat is achieved by reducing friction and reducing cutter abrasion.

Description

technical field [0001] The invention relates to the technical field of drill bits, in particular to a micro-textured BTA deep hole drill bit and a preparation process thereof. Background technique [0002] With the advancement of science and technology, the manufacturing industry has higher and higher requirements for the complexity, precision and surface roughness of products. The continuous emergence of new materials and difficult-to-machine materials also puts forward higher requirements for metal cutting technology. The overall development trend of modern metal cutting processing is high speed, high efficiency, low carbon and environmental protection, but the rapid wear of cutting tools in the processing process still restricts the life of cutting tools and cutting efficiency. When the tool is cutting, the front and flank faces of the tool will have strong friction with the chip and the surface of the workpiece, and the cutting layer will also be deformed. Therefore, i...

Claims

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Application Information

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IPC IPC(8): B23B41/02B23B51/00B23P15/28
CPCB23B41/02B23B51/00B23P15/28B23B2251/202B23B2251/282
Inventor 朱林董智伟
Owner XI'AN PETROLEUM UNIVERSITY
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