Nondestructive testing method for incomplete fusion defect, testing standard part and manufacturing method thereof

The invention relates to a nondestructive testing method for incomplete fusion defects, a testing standard part and a manufacturing method thereof. The nondestructive testing method is used for nondestructive testing of incomplete fusion defects of an additive manufacturing workpiece. The manufacturing method of the incomplete fusion defect standard part comprises: A, setting a incomplete defect area of the standard part, and in the non-fusion defect area, setting the proportion of the non-fusion defects to the non-fusion defect area to be a first proportion value; B, selecting an additive manufacturing forming process for manufacturing the incomplete fusion defect area, and acquiring a first process parameter of the additive manufacturing forming process corresponding to the first proportional value; and step C, executing the additive manufacturing forming process based on the first process parameter so as to form the incomplete fusion defect area. The nondestructive detection methodfor the incomplete fusion