A multi-part layout optimization processing method and system for laser additive manufacturing

Abstract

The invention discloses a multi-part layout optimization processing method for laser additive manufacturing, which includes: reading the X-axis and Y-axis data of the smallest bounding box of each part from all part layer cut files; Support sliced ​​data, so that the gap between the minimum bounding boxes of two adjacent parts in the direction of scraper movement or horizontally and perpendicularly to the direction of scraper movement is the preset value L; generate the overall minimum bounding box of multiple parts, if the overall minimum bounding box of multiple parts The X-axis length is less than the X-axis length of the processing box, and the Y-axis length of the overall minimum bounding box of multiple parts is less than the Y-axis length of the processing box, then go to the next step, otherwise end; generate the starting position of the high-speed motion interval of the scraper and the end position to generate the start position and end position of the low-speed movement interval of the scraper; the movement of the scraper is controlled according to the start position and end position of the high-speed movement interval and the low-speed movement interval.

Description

technical field [0001] The invention belongs to the technical field of 3D printing, and more specifically relates to a multi-part layout optimization processing method and system for laser additive manufacturing. Background technique [0002] Additive Manufacturing (AM), also known as 3D printing technology, is a technology based on digital part files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. . In order to make full use of the forming box, multiple smaller parts are often put into one forming box for processing. The squeegee movement time-consuming in laser additive manufacturing is much higher than the laser scanning speed, the squeegee movement distance and speed are important factors determining the time-consuming of laser additive manufacturing, so saving the squeegee movement distance and increasing the squeegee movement speed can significantly reduce Total time spent in laser additive manufacturing...

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