The invention relates to a laminated method for producing metal element, which comprises: building model, dispersing the model, processing layer; based on the data document, using material transmitter to transmit the laminated material; using ultra-sonic welding technique to weld nearby two layers; based on the laminated information, removing the layer surface of welded material, to realize the horizontal and vertical motions; processing the next layer. The inventive ultra-sonic welding has less power consumption, small deformation of welding element, and high strength of welding point. Therefore, the product has high accuracy and lower cost. |