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Preparation method of CVD diamond micro-milling cutter

A diamond tool, diamond technology, applied in the direction of diamond, milling cutter, milling machine equipment, etc., to achieve the effect of good precision and micro machining, low grinding resistance, and few cracks

Inactive Publication Date: 2018-12-07
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to propose a method for laser-induced graphitization-assisted precision sharpening of CVD diamond micro-milling cutters to solve the problem of high-quality and efficient processing of diamond micro-milling cutters

Method used

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  • Preparation method of CVD diamond micro-milling cutter
  • Preparation method of CVD diamond micro-milling cutter
  • Preparation method of CVD diamond micro-milling cutter

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Embodiment Construction

[0018] The laser-induced graphitization-assisted precision grinding method for CVD diamond micro-milling cutters of the present invention will be described below in conjunction with the accompanying drawings and a specific embodiment.

[0019] In order to study the effects of different single pulse energy (e), scanning speed (v) and filling spacing (d) on the graphitization depth of diamond, the following 15 sets of simulations and experiments were carried out. The first 9 groups fixed the laser single pulse energy at 0.25mJ to study the effects of laser scanning speed and filling spacing on the graphitization depth. After that, three groups of variable power simulations with single pulse energy of 0.35mJ and 0.45mJ were carried out respectively. The final simulation results are shown in Table 1.

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Abstract

The invention provides a preparation method of a CVD diamond micro-milling cutter and belongs to the technical field of mechanical cutting tool manufacturing. In the machining process, firstly, appropriate laser parameters are selected by utilizing the diamond laser grpahitizing principle, a surface layer of a diamond cutter is modified into a multihole loosened powdered and solid-shape modified layer by laser inducing, the grinding load is lowered; and then the graphitized diamond cutter precision cutter grinding is subjected to precision cutter grinding according to the designed shape and grinding parameters by a precision cutter grinding machine. With the adoption of the preparation method, the high-quality CVD diamond micro-milling cutter can be machine more efficiencly, a cutting edgeof the CVD diamond micro-milling cutter is sharp, flaws are few, and the CVD diamond micro-milling cutter can be preferably applied to precision and micro-machining fields.

Description

Technical field: [0001] The invention relates to a laser-induced graphitization-assisted precision grinding method for a CVD diamond micro-milling cutter, which belongs to the technical field of mechanical cutting tool manufacturing. technical background: [0002] In recent years, the miniaturization of equipment in the fields of electronics, medical and communication has increased their demand for micro-miniature parts. Due to the high processing quality and processing efficiency, good reliability, and the ability to process more complex three-dimensional curved surfaces, micromachining has become one of the best choices for producing micro parts and structures with feature sizes ranging from microns to millimeters and high precision shape requirements. First, it is also one of the key technologies connecting the macro and micro-nano fields. [0003] However, the size of the micro milling cutter is small, and the cutting parameters are often below the millimeter level, res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/00C01B32/28B24B3/02
CPCB23C5/00B23C2226/31B24B3/02C01B32/28
Inventor 陈妮郝秀清仵洋赵国龙郭月龙李亮何宁
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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