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Complex surface tool laser machining method based on three-dimensional shaping focal spots

A laser processing method and technology for complex profiles, applied in laser welding equipment, metal processing equipment, manufacturing tools, etc., can solve problems such as poor laser processing accuracy, uncontrollable spot energy, and inability to meet the processing needs of complex tool surfaces with special-shaped structures.

Pending Publication Date: 2020-07-07
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current laser processing technology has problems such as uncontrollable spot energy and limited movement range of the spot, resulting in poor laser processing accuracy and low processing efficiency, and cannot meet the processing requirements of complex tools (especially tools with large curvature surfaces) and special-shaped surfaces.

Method used

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  • Complex surface tool laser machining method based on three-dimensional shaping focal spots

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A laser processing method for a complex profile tool based on a three-dimensional shaping focal spot, characterized in that it comprises the following steps:

[0028] S1. According to the shape and size of the tool to be processed and the shape and precision requirements of the final tool, write the laser processing program and simulate the laser processing path;

[0029] S2. Clamp the tool to be processed to the central turntable on the laser machine tool, and use the probe to position the tool to be processed;

[0030] S3. According to the design of the tool surface, combined with the movement of the mechanical axis of the central turntable, use the three-dimensional controllable shaping laser focal spot to perform laser processing on the tool to be processed, with a surface roughness of Ra0.5μm and a processing accuracy of 15μm;

[0031] S4. After the tool laser processing is completed, the shape and size of the processed tool are detected.

[0032] Further, the las...

Embodiment 2

[0042] A laser processing method for a complex profile tool based on a three-dimensional shaping focal spot, characterized in that it comprises the following steps:

[0043] S1. According to the shape and size of the tool to be processed and the shape and precision requirements of the final tool, write the laser processing program and simulate the laser processing path;

[0044] S2. Clamp the tool to be processed to the central turntable on the laser machine tool, and use the probe to position the tool to be processed;

[0045] S3. According to the design of the tool surface, combined with the movement of the mechanical axis of the central turntable, use the three-dimensional controllable shaping laser focal spot to perform laser processing on the tool to be processed, with a surface roughness of Ra0.02μm and a processing accuracy of 1μm;

[0046] S4. After the tool laser processing is completed, the shape and size of the processed tool are detected.

[0047] Further, the las...

Embodiment 3

[0057] A laser processing method for a complex profile tool based on a three-dimensional shaping focal spot, characterized in that it comprises the following steps:

[0058] S1. According to the shape and size of the tool to be processed and the shape and precision requirements of the final tool, write the laser processing program and simulate the laser processing path;

[0059] S2. Clamp the tool to be processed to the central turntable on the laser machine tool, and use the probe to position the tool to be processed;

[0060] S3. According to the design of the tool surface, combined with the movement of the mechanical axis of the central turntable, use the three-dimensional controllable shaping laser focal spot to perform laser processing on the tool to be processed, with a surface roughness of Ra0.1μm and a processing accuracy of 10μm;

[0061] S4. After the tool laser processing is completed, the shape and size of the processed tool are detected.

[0062] Further, the las...

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Abstract

The invention provides a complex surface tool laser machining method based on three-dimensional shaping focal spots. The complex surface tool laser machining method based on the three-dimensional shaping focal spots includes the following steps that S1, according to the shape and size of a tool to be machined and the final tool morphology and precision requirements, a laser machining program is written to simulate a laser machining path; S2, the tool to be machined is clamped to a center turntable on a laser machine tool, and a probe is adopted to locate the tool to be machined; S3, accordingto the tool surface design, combined with the mechanical axis movement of the center turntable, the three-dimensional shaping laser focal spots are used for laser machining the tool to be machined, the surface roughness is Ra0.02-0.5<mu>m, and the machining accuracy is 1-15<mu>m; and S4, after finishing laser machining, the shape and size of machining tool are tested. The complex surface tool laser machining method can realize laser high-efficiency and high-precision machining forming of the complex surface tool with an irregular structure by using the three-dimensional controllable shaping laser focal spots, can meet the machining demand of the irregular structure of the complex tool surface, and the machining precision and machining efficiency are high.

Description

technical field [0001] The invention belongs to the technical field of laser processing, and in particular relates to a laser processing method for complex profile cutters based on a three-dimensional shaping focal spot. Background technique [0002] With the continuous improvement of the processing quality and processing efficiency requirements for difficult-to-machine materials, the tool profile tends to be complex. At the same time, the design of tool structures such as chip breakers, micro-textures, and multiple cutting edges can effectively improve the tool cutting quality and processing efficiency. It is becoming more and more difficult to manufacture tools by traditional methods such as grinding, and there are problems such as the inability to manufacture complex tool structure designs. [0003] Laser processing has the characteristics of non-contact, flexible processing, and no material selectivity, and has become an important means of processing complex-shaped too...

Claims

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Application Information

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IPC IPC(8): B23K26/36B23K26/064B23K26/70
CPCB23K26/36B23K26/064B23K26/702
Inventor 王成勇林海生胡小月郑李娟
Owner GUANGDONG UNIV OF TECH