METHOD FOR PREFABRICATING POOR FUSION DEFECTS BY CONTROLLING LMD PROCESS

WIPO Patent Application WO/2021/212888

A1

A method for prefabricating poor fusion defects by means of controlling an LMD process, wherein a model (10) that comprises a forming region (1) and a prefabricated defective region (2) is obtained, the prefabricated defective region (2) having a preset defect (3); the model (10) is subject to layered slicing processing, and for each deposited layer (4) of the prefabricated defective region (2), the preset defect (3) has the largest dimension a0 in the vertical direction; for the forming region (1), predetermined forming process parameters of the LMD process are used for forming; and for the prefabricated defective region (2), the forming process parameters are controlled as follows: when a0