Autor(es):
Silva, Carlos M. A. ; Pragana, João P. M. ; Sampaio, Rui F. V. ; Bragança, Ivo M. F. ; Martins, Paulo A. F. ; Bragança, Ivo
Data: 2025
Identificador Persistente: http://hdl.handle.net/10400.21/23092
Origem: Repositório Científico do Instituto Politécnico de Lisboa
Assunto(s): Cold forming; Joining; Multistage tools
Descrição
This paper presents a novel double-flush riveting process for creating lap joints in sheet metal parts. The process involves punching, forging, and shaving to produce countersunk holes with precise geometry, followed by compression of cylindrical rivets into the holes of two overlapped sheet parts to create form-closed mechanical interlocks. Experimental and numerical analyses examine the influence of the primary process parameters on interlock quality and required forming and destructive forces. The investigation is a step forward in joining technology by offering a simple alternative to welding, bonding, and mechanical joining, with seamless integration into multistage forming tools.