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Broach with honeycomb-like microstructures and preparation method of broach

A microstructure and honeycomb-like technology is applied in the field of broaches with a honeycomb-like microstructure and their preparation. Heat buildup, the effect of protecting the tool

Active Publication Date: 2020-11-24
ZHEJIANG GONGSHANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem of severe friction and wear caused by the slow heat dissipation speed of the tip of the broaching teeth in the process of cutting difficult-to-machine materials, and provides a broach with a honeycomb-like microstructure and a preparation method thereof

Method used

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  • Broach with honeycomb-like microstructures and preparation method of broach
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  • Broach with honeycomb-like microstructures and preparation method of broach

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] like Picture 1-1 , 1-2 Shown in and 1-3, in the embodiment of the present invention, the broach with imitative honeycomb microstructure is a keyway broach, and the material adopts high-speed steel (W6Mo5Cr4V2). As a preferred embodiment, the specific size of the broach is: the total length is 600mm, tooth width b 1 is 16mm, the horizontal width of the flank b 2 is 2mm, and the number of teeth is 50. Rake angle of cutter teethγ 0 is 12°, relief angle α 0 is 6°, and the tooth pitch p is 6mm. As a preferred embodiment, the first 40 teeth are rough drawing area X 1 , tooth lift δ in the rough drawing zone i 0.04mm, the 41st to 45th teeth are semi-finishing areas X 2 , tooth lift δ in the semi-finishing zone i 0.01mm, the 46th to 50th tooth is the fine drawing area X 3 , tooth lift δ in the finishing area i is 0mm. Tooth including rake face A 1 , Blade ...

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Abstract

The invention discloses a broach with honeycomb-like microstructures and a preparation method of the broach, and solves the problems that when existing broaching teeth cut materials difficult to process, the top ends of the teeth are relatively low in heat dissipation speed and serious in friction wear. According to the broach with the honeycomb-like microstructure and the preparation method of the broach, the two broach teeth side faces of each broach tooth in the coarse pull area and the semi-fine pull area are both provided with the honeycomb-like microstructures arranged in a parallelogramwith M rows timing N columns; the honeycomb-like microstructures are provided with composite pits, cylindrical protrusions and silica gel fillers; the cylindrical protrusions are integrally formed with the side surfaces of the broach teeth; each composite pit is composed of a regular hexagonal pit and a regular quadrangular pit which coincide with the central axis; each silica gel filler is injected between the corresponding composite pit and the corresponding cylindrical protrusion; and the bottom of each silica gel filler is bonded with the bottom of the corresponding composite pit througha silica gel hot vulcanization adhesive. The broach with the honeycomb-like microstructure and the preparation method of the broach optimize the heat dissipation and vibration suppression performanceof the broach, and achieves the purposes of protecting the broach, reducing the abrasion of the broach, prolonging the service life of the broach and improving the use efficiency of the broach.

Description

technical field [0001] The invention belongs to the technical field of cutting tools, and in particular relates to a broach with a honeycomb-like microstructure and a preparation method thereof. Background technique [0002] Because of its high processing accuracy and processing efficiency, broaching is widely used in the processing and preparation of high-precision parts in the fields of aerospace, automobiles and ships. But at this stage, when the broach is broaching, it often produces high broaching temperature and broaching vibration, which greatly affects the accuracy of broaching and the service life of broaching, increasing the safety of broaching Hidden danger. Therefore, for broaching, it is of great significance to develop a new type of broach that can reduce broaching temperature, reduce broaching vibration, and improve service life for the development of broaching tool industry. [0003] At present, there are few studies on the development and preparation of br...

Claims

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Application Information

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IPC IPC(8): B23D43/00B23P15/42
CPCB23D43/00B23P15/42
Inventor 彭丽辉胡致远米慧迎冯熠娜
Owner ZHEJIANG GONGSHANG UNIVERSITY
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