Contour feature-based multi-laser powder bed fusion load balancing method and device

The invention discloses a multi-laser powder bed fusion load balancing method and device based on contour features, and belongs to the technical field of additive manufacturing. The method comprises the steps that current slice layers are classified according to the number of outer contours; if the current outer contour layer is a single outer contour layer and the outer contour of the current outer contour layer is non-gentle, calculating a skeleton line of the current outer contour layer, calculating a distance threshold value d according to the bounding box, determining a position where the diameter of the skeleton line is smaller than d and the position can meet a load balancing condition as a division position, and performing region division; if the current outer contour layer is a multi-outer-contour layer, the multi-outer-contour layer is divided into a plurality of single outer contour groups, the single outer contour groups are sorted according to the sequence that the total area of the processing ar