Complex part partition manufacturing method based on temperature distribution

Abstract

The invention belongs to the related technical field of arc additive manufacturing, and discloses a complex part partition manufacturing method based on temperature distribution. The manufacturing method comprises the following steps that firstly, based on manufacturing constraints, parts to be manufactured are layered, and each layer is subjected to area division; secondly, according to the partition shape, a filling path is planned, the filling path type and the direction of each partition are determined, and meanwhile the partition, with the minimum deforming amount, in the partitions serves as an initial manufacturing partition; thirdly, the initial manufacturing partition of the current layer is subjected to deposition filling, before one partition is manufactured through deposition,the remaining partitions of the current layer are subjected to thermal imaging scanning, temperature distribution of the remaining partitions is calculated, the partition, with the minimum partition average temperature, in the non-filled area is selected as the next manufacturing partition, and deposition filling continues until machining of the current layer is finished; and fourthly, the third step is repeated, and layer-by-layer machining is carried out until the pars to be manufactured are manufactured. Part quality and performance are improved.

Description

technical field [0001] The invention belongs to the technical field related to arc additive manufacturing, and more specifically, relates to a method for manufacturing complex parts in partitions based on temperature distribution. Background technique [0002] Compared with the other two technologies of additive manufacturing: laser additive manufacturing technology and electron beam additive manufacturing technology, arc deposition additive manufacturing has high deposition efficiency, low manufacturing cost, sufficient metallurgical process, and good metal applicability However, large and complex parts cannot be formed at one time due to the constraints of shape, performance requirements, material requirements, surface quality, etc., which hinders the application of arc additive manufacturing in complex and large parts. [0003] In the additive manufacturing of complex structural parts, layering strategy and path planning are key technologies that directly affect the formi...

AI Technical Summary

Problems solved by technology

Under various constraint conditions, the partitioned manufacturing method avoids defects such as non-fusion and poor lap joints caused by complex paths, overcomes the deformation of parts caused by stress concentration caused by excessive temperature, and improves the quality and performance of parts

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