Laser-assisted drilling method and device

A laser-assisted, drilling method technology, applied in other manufacturing equipment/tools, metal processing, manufacturing tools, etc., can solve the problems of reduced processing quality, tool wear, increased drill breakage, etc., to improve processing accuracy and processing efficiency, The effect of reducing tool wear and improving machinability

Inactive Publication Date: 2014-04-30
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] For forged blanks or hardened shafts or flat parts, due to the uneven surface or high hardness, the traditional drilling process has large resistance, high temperature, and serious tool wear
Especially, in the oblique hole processing of flat parts or the drilling of cylindrical surface, due to the long drill bit and high hardness of the material, the drill bit is easy to slide and vibrate due to the uneven surface when entering the hole, which will reduce the processing quality and increase the drill bit. wear, making accurate drilling difficult and the possibility of bit breakage greatly increased

Method used

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  • Laser-assisted drilling method and device

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Embodiment Construction

[0022] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown, a laser-assisted drilling method provided by the present invention specifically includes the following steps:

[0024] S1. Drilling positioning: Fix the workpiece 1 by a fixture, align the laser beam 2 of a laser 3 with the hole to be drilled on the workpiece 1, and hang the drill bit 4 above the workpiece 1, and align it with the hole to be drilled.

[0025] Among them, in order to facilitate the alignment of the workpiece 1 to be drilled, the laser 3 in the present invention is required to be able to move conveniently, so the fiber laser 3 is preferred. When positioning, try to make the center of the laser beam 2 of the laser 3 coincide with the center of the hole to be drilled on the workpiece 1 .

[0026] S2. Laser heating: use the laser beam 2 of the laser 3 to heat the hole ...

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Abstract

The invention provides a laser-assisted drilling method and a laser-assisted drilling device. The laser-assisted drilling device comprises a workbench, a fixture mounted on the workbench, a drill bit and a laser device, wherein the drill bit and the laser device are respectively arranged on the workbench through a movable device and arranged above the fixture, and the laser device and the drill bit are arranged to be provided with an included angle therebetween. According to the laser-assisted drilling method, the to-be-drilled area of a workpiece is preheated by a high-energy laser beam, so that, in a very short time, part of the to-be-drilled area is heated to have a very high temperature, meanwhile, the physical performance of the material is changed under the high temperature, and the to-be-drilled area of the workpiece material is softened. Once the laser heating is completed, drilling starts rapidly. Thus the drilling resistance can be reduced, the machinability of the material can be improved, the tool wear can be reduced, the success of drilling can be ensured, and the machining precision and the machining efficiency can be improved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a laser-assisted drilling method and device. Background technique [0002] For forged blanks or hardened shafts or flat parts, due to the uneven surface or high hardness, the traditional drilling process has large resistance, high temperature and severe tool wear. Especially, in the oblique hole processing of flat parts or the drilling of cylindrical surface, due to the long drill bit and high hardness of the material, the drill bit is easy to slide and vibrate due to the uneven surface when entering the hole, which will reduce the processing quality and increase the drill bit. Wear, making it difficult to drill accurately and greatly increasing the possibility of the drill bit breaking. Contents of the invention [0003] In view of this, it is necessary to address the problems existing in the prior art and provide a laser-assisted drilling method and device to reduce tool...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P23/04B23B35/00
CPCB23P25/006B23B35/00
Inventor 张弓王映品贺长林陈贤帅杜如虚李凯格郑雷
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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