Abstract

Joining by forming is an attractive assembly method for mass produced parts due to easiness in execution, no heat effect, various material combinations etc. and industrial applications have been increased in electric and automotive industries. In this paper, a disc plate and stepped shaft is assembled by forming. Assembling is achieved by indenting the disc with a stepped and grooved shaft up to a certain depth. Through the experiments using an aluminum disc and a steel shaft, the influence of the overlap length and penetrating depth of the stepped section on joining force, axial strength and dimensional change of the disc plate are investigated. Disassembling tests revealed that the joint by the proposed method had sufficient axial strength if the groove of the shaft was completely filled.

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