Method for processing rectangular micropore mould of diamond with laser

Abstract

The invention discloses a method that diamond rectangle micropore die is processed by laser, comprising the following steps: (1) the shape of the die hole is designed, and the die hole can have wire material lead-in area, lubrication area, compression deformation area, sizing area and lead-out area; (2) the computer working procedure can be designed and compiled according to the hole shape; (3) the three-dimensional motion platform makes spatial three-dimensional motion under the control of computer procedure; (4) the laser power of the laser device can be adjusted by the computer, and the laser repetitive pulse frequency can be adjusted by automatic linear; (5) the laser bundle is focused on the work pieces, and cremation is produced on the focal point. The three-dimensional motion platform bears the pellets, and the processed parts of the pellets are moved on the laser focal point. The laser bundle can be controlled, the required hole shape can be scanned and processed on the diamond pellets circle by circle and layer by layer. The provided method can process the diamond into rectangle micropore die. The rectangle metal wire materials with the pore diameter less than 0.1mm, high precision and high strength can be made by using the die.

Description

technical field [0001] The invention relates to a processing method of a mold, in particular to a processing method of a diamond rectangular micro-hole mold. Background technique [0002] Diamond wire drawing dies are used to draw high-strength hard metal wires or high-precision soft metal wires. Usually the shape of the hole is a round hole, that is, the cross section of the drawn wire is circular, but in special applications, it is necessary to use tungsten wire, molybdenum wire or other metal wire with high strength, high precision, small size, and rectangular cross section. . In the prior art, metal wires such as tungsten wires and molybdenum wires can be obtained by rolling round wires, but the cross-section is not rectangular, it is a flat wire with arc-shaped ends at both ends of the cross-section, and the width and uneven thickness, for example, within a length of 1 meter, the size of each section of its width and thickness is not the same, which cannot meet the re...

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Problems solved by technology

[0005] However, this method is affected by the influence of the electrode size accuracy, the error of the clamping and automatic feeding device, and the power of the electric spark. The precision of the die hole is not high, especially the die hole cannot be made small; and the initial shape of the die hole after piercing It does not necessarily meet the requirements of wire drawing and extrusion deformation. The shaping can only be partially corrected. The hole shape deviation after manufacture is large. The hole shape of the same specification mold is not the same. It is difficult to guarantee the tolerance size, so the mold is discrete; in addition In addition, this method consumes precious metal materials - copper and kerosene, and it is also very difficult to make electrodes for processing small holes.

[0006] Due to the development of production, the market needs high-precision, high-strength fine rectangular metal wires. The molds for manufacturing such high-end wires must be made of the hardest and best wear-resistant natural diamond crystals in nature. However, diamonds do not conduct electricity. Conventional mechanical processing and electrical processing methods are powerless to process rectangular micro-holes on diamond, so we can only find another solution

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