Patent ID: 11904526
Assignee: nan
Field: Other special machines (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 18:
19. An additive manufacturing system comprising:
a deposition material feeder;
a nozzle having a nozzle sidewall defining a central channel for allowing a deposition material to be dispensed therethrough along a deposition axis onto a workpiece;
a displacement mechanism for providing relative movement between the nozzle and a workpiece including movement in a movement plane;
a heat source operatively coupled to the nozzle for melting the deposition material dispensed through the nozzle to form an additive material layer on a top surface of the workpiece with an oxide layer thereby forming around the melted deposition material; and
an ultrasonic wave generator for providing ultrasonic waves along an ultrasonic axis, the ultrasonic wave generator being positioned such that the deposition axis and the ultrasonic axis are substantially parallel to each other to cause cavitation within the melted deposition material in order to wet and form bonds between the melted deposition material and the workpiece; and
a controller operative to control the deposition material feeder, the nozzle displacement mechanism, the heat source and the ultrasonic wave generator to cause a melt pool of the deposition material to form on a surface of the workpiece and to cause cavitation within the melt pool in order to wet and form bonds between the melted deposition material and the workpiece and to move the nozzle while dispensing the deposition material to manufacture the workpiece.