Diamond micro drilling tool and machining method thereof

A processing method and diamond technology, applied in metal processing equipment, manufacturing tools, metal material coating technology, etc., can solve the problems that affect the processing accuracy and life of drill needles, the high edge height of diamond abrasive grains, and the limited service life of micro drills, etc. , to achieve the effect of reducing friction coefficient, low cost and improving wear resistance
CN107675147AActive Publication Date: 2018-02-09GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2018-02-09

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Abstract

The invention discloses a diamond micro drilling tool and a machining method thereof. A grinding layer is plated on the surface of the micro drilling tool, and comprises a fixed grain composite plating layer and micron diamonds; and the fixed grain composite plating layer comprises nanometer diamonds and nanometer polytetrafluoroethylene. Meanwhile, the invention further discloses the machining method of the diamond micro drilling tool. A chemical composite plating method is adopted to prepare a micro drill containing diamonds; and the micro drill is prepared by using a chemical plating method, and has the characteristics of simple process, low cost and good wear resistance. The fixed grain composite plating layer in the grinding layer comprises the nanometer diamonds and a polytetrafluoroethylene composite plating layer; the nanometer diamonds are added to achieve higher hardness of the composite plating layer and better wear resistance; the wear resistance of the plating layer and the holding force of a fixed grain layer to diamond abrasive grains are improved; and nanometer polytetrafluoroethylene particles can reduce friction between the plating layer and a hole wall, reduce the wear of the fixed grain layer, and prolong the service life of the micro drill.
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Description

technical field

[0001] The invention relates to a diamond micro-drilling tool and a processing method thereof. Background technique

[0002] With the development of industrial technology, the demand for microstructure processing of hard and brittle materials, as well as micro components and micro products in the fields of electronics, machinery, and biotechnology is increasing. At present, the methods suitable for micro-processing of hard and brittle materials mainly include micro-ultrasonic machining and micro-laser machining. Because micro-ultrasonic machining has no thermal effect, it can process tiny three-dimensional structures with high aspect ratios, and the surface quality and machining accuracy of parts are high, which determines that micro-ultrasonic machining has unique advantages in the processing of microstructures of hard and brittle materials.

[0003] Micro-drilling plays a very important role in micro-ultrasonic machining. General micro-drilling is to use a...

Claims

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