Abstract: A method of assembling and embossing a multiple layer workpiece has, in a most complete conception, a first die having die surfaces for defining periphery of an area portion to be embossed on the workpiece which engages a blank to mark the blank with the die surfaces. Means are then located on the blank relative to the mark for operating on the blank to make a model of the desired workpiece from the blank. A second die is made conformably with the model. Workpiece layers are then assembled in overlapping relation and welded together by the first die along the periphery of the area porton defined by the die surfaces. Portions of one layer outside the welded periphery are then removed to leave the area portion covered by the one layer and secured to the other about the periphery of the area portion.