The process requires first to machine a dovetail ring hole and a countersunk hole in the lower and upper sheets, respectively, and then to inject a semi tubular rivet by compression through the lined-up holes to create a mechanical interlocking that can fix the two sheets in. The process requires first to machine a dovetail ring hole and a countersunk hole in the lower and upper sheets, respectively, and then to inject a semi tubular rivet by compression through the lined-up holes to create a mechanical interlocking that can fix the two sheets in. Joining by forming process without auxiliary elements that generates high contact pressures along the overlapping area. The assembly process can be carried out in progressive tool systems comprising a sequence of lancing, bending and forging operations. In this process, a tubular connector is inserted into the terminal and busbar holes and deformed to create a force- and form-fit joint. er applications that are commonplace in EVs. 400 The fastened unit cells with a loose.
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