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Laser engineered net shaping method of supporting-free inclined structure

A laser near-net-shaping, unsupported technology, applied in the fields of laser near-net-shaping and laser repair, can solve the problems of small inclination angle of unsupported inclined structures, and achieve the effect of expanding the scope of application and avoiding failure to form.

Active Publication Date: 2015-05-20
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the inclination angle of the laser near-net-shaping unsupported tilting structure is small under the condition of three-axis open-loop, the present invention proposes a laser near-net-shaping method for the unsupported tilting structure

Method used

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  • Laser engineered net shaping method of supporting-free inclined structure

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Comparison scheme
Effect test

Embodiment 1

[0020] Specific steps are as follows:

[0021] A. Before forming, it is determined that the angle 4 of the unsupported inclined structure required for forming is 56°;

[0022] B. Deflect the laser head and the vertical direction by 40°, so that the preset angle 3 between the laser beam 1 and the vertical direction is 40°;

[0023] C. According to the preset angle of 40° between the laser beam and the vertical direction, the angle 5 between the laser beam and the unsupported inclined structure to be formed is 16°, which meets the angle between the laser beam and the unsupported inclined structure to be formed. The included angle requirement between them;

[0024] D. Start the laser near-net shaping system to form the unsupported inclined structure 2, and finally obtain the required angle of 56° unsupported inclined structure.

Embodiment 2

[0026] Specific steps are as follows:

[0027] A. Before forming, it is determined that the angle 4 of the unsupported inclined structure required for forming is 68°;

[0028] B. Deflect the laser head and the vertical direction by 30°, so that the preset angle 3 between the laser beam 1 and the vertical direction is 30°;

[0029] C. According to the preset angle of 30° between the laser beam and the vertical direction, the angle 5 between the laser beam and the unsupported inclined structure to be formed is 38°, which meets the angle between the laser beam and the unsupported inclined structure to be formed. The included angle requirement between them;

[0030] D. Start the laser near-net shaping system to form the unsupported inclined structure 2, and finally obtain the required angle of the unsupported inclined structure of 68°.

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Abstract

The invention discloses a laser engineered net shaping method of a supporting-free inclined structure and belongs to the technical field of laser repairing and laser engineered net shaping. According to the angle of the supporting-free inclined structure needing to be shaped, a laser head deflects from the vertical direction by a certain angle, an included angle of 5-45 degrees is preset between laser beams and the vertical direction, it is guaranteed that an include angle of 0-45 degrees exists between the laser beams and the supporting-free inclined structure needing to be shaped, and finally, the included angle formed between the supporting-free inclined structure and the vertical direction is a large inclination angle of 45-85 degrees. The method has great significance in laser repairing and direct shaping of complicated parts and effectively avoids the problem that shaping cannot be performed because interference exists in the vertical direction of a shaping structure, and the application range of the technology is widened.

Description

technical field [0001] The invention belongs to the technical field of laser repair and laser near-net shaping, and relates to a laser near-net shaping method of an inclined structure without support. Background technique [0002] Laser near-net forming technology is a direct forming process of metal parts. Due to the influence of many factors such as support materials and process limitations, it is difficult to solve the overhanging problem of formed parts by adding supports during the forming process. With the increasing reliance of industrial development on complex parts repair and direct forming technology, complex parts with large inclination angles need to break through the problem of angle forming under unsupported conditions. Using a five-axis CNC system is a common method for forming structures with large inclination angles, but the five-axis CNC system has extremely high hardware requirements for the laser near-net forming system, which increases the complexity of ...

Claims

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Application Information

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IPC IPC(8): B22F3/105
Inventor 马广义石龙飞邓德伟张永康王鑫林柴东升吴东江
Owner DALIAN UNIV OF TECH