A Path Planning Method for High Energy Beam Moving Front Machining

Abstract

The invention discloses a high-energy beam peak moving processing path planning method and belongs to the technical field of high-energy beam manufacturing. According to the high-energy beam peak moving processing path planning method, when filling scanning paths of various to-be-processed layers are generated, between the adjacent various layers, positions, highest in power, in the high-energy beam scanning paths mutually deviate by set amounts, and therefore energy distribution in the processing process is improved, and then the processing quality and precision in the additive manufacturingor subtractive manufacturing process are improved; the method includes the following steps that firstly, a processing model is subjected to layering; secondly, peak moving processing path planning parameters are set; thirdly, a processing path of a first layer in the peak moving period is generated; fourthly, processing paths of subsequent various layers in the peak moving period are generated; and fifthly, the step (3) and the step (4) are repeated till the processing paths of all the layers are generated. According to the method, by adjusting the center position deviation of the high-energybeam scanning paths of the adjacent processing layers, that is, a pointed peak is moved away, peak moving for short, energy density homogenization of processing of the plurality of layers is achieved,and the processing quality and precision are improved.

Description

technical field [0001] The invention belongs to the technical field of high-energy beam manufacturing, and relates to laser milling (also known as laser etching), laser additive manufacturing, arc additive manufacturing, ion beam processing, electron beam processing and other high-energy beam additive and subtractive manufacturing technologies, specifically In order to improve the quality and precision of high energy beam processing in additive and subtractive manufacturing through the path planning method of high energy beam shifting front. Background technique [0002] Additive and subtractive manufacturing technologies that use high-energy beams such as laser beams, electron beams, ion beams, and electric arcs as tools, apply high-power-density energy beams to materials, and make materials melt and accumulate (additive manufacturing) or gasify and remove ( Subtractive manufacturing), has the advantages of non-contact processing, adjustable power, no tool wear, easy transm...

AI Technical Summary

Problems solved by technology

[0006] At present, the public processing path planning schemes mainly focus on improving the processing efficiency by shortening the auxiliary processing path, optimizing the processing path to improve the quality of the splicing area in the layer, or discrete processing paths in time and space to reduce the thermal impact. In-layer planning processing path

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