Double-flush riveting by punching and compression

This paper presents a new double-flush riveting process to fabricate flat lap joints that can be easily integrated in progressive or transfer multistage tool systems. The process is based on a punching-compression sequence and the design methodology combines experimentation and finite element modeli...

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Main Authors: R.F.V. Sampaio, P. Larue, J.P.M. Pragana, I.M.F. Bragança, C.M.A. Silva, P.A.F. Martins
Format: Article
Language:English
Published: Elsevier 2023-11-01
Series:Journal of Advanced Joining Processes
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666330923000171
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author R.F.V. Sampaio
P. Larue
J.P.M. Pragana
I.M.F. Bragança
C.M.A. Silva
P.A.F. Martins
author_facet R.F.V. Sampaio
P. Larue
J.P.M. Pragana
I.M.F. Bragança
C.M.A. Silva
P.A.F. Martins
author_sort R.F.V. Sampaio
collection DOAJ
description This paper presents a new double-flush riveting process to fabricate flat lap joints that can be easily integrated in progressive or transfer multistage tool systems. The process is based on a punching-compression sequence and the design methodology combines experimentation and finite element modeling followed by destructive peel testing. Special emphasis is placed on the identification and selection of punch-to-die clearances to produce tapered cut surfaces that are appropriate for subsequent compression of the solid rivets into double-flush riveted lap joints. Results confirm that rivet materials with lower mechanical resistance than the sheet materials allow fabricating double-flush riveted lap joints with flat surfaces on both sides in which the mechanical interlocking in the undercut area is obtained by plastic deformation of the rivets instead of the sheets. The utilization of aluminum sheets and copper rivets allows extending the process scope of application from structural to energy distribution parts in which the electrical resistance of joints is a critical design parameter.
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spelling doaj.art-2bd60387b37e4e1ca59dd1d13bb53bfc2023-12-12T04:36:26ZengElsevierJournal of Advanced Joining Processes2666-33092023-11-018100155Double-flush riveting by punching and compressionR.F.V. Sampaio0P. Larue1J.P.M. Pragana2I.M.F. Bragança3C.M.A. Silva4P.A.F. Martins5IDMEC, Instituto Superior Técnico, Universidade de Lisboa, PortugalENSEIRB-MATMECA, Bordeaux INP, Talence, FranceIDMEC, Instituto Superior Técnico, Universidade de Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, Portugal; CIMOSM, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, PortugalIDMEC, Instituto Superior Técnico, Universidade de Lisboa, Portugal; Corresponding author.This paper presents a new double-flush riveting process to fabricate flat lap joints that can be easily integrated in progressive or transfer multistage tool systems. The process is based on a punching-compression sequence and the design methodology combines experimentation and finite element modeling followed by destructive peel testing. Special emphasis is placed on the identification and selection of punch-to-die clearances to produce tapered cut surfaces that are appropriate for subsequent compression of the solid rivets into double-flush riveted lap joints. Results confirm that rivet materials with lower mechanical resistance than the sheet materials allow fabricating double-flush riveted lap joints with flat surfaces on both sides in which the mechanical interlocking in the undercut area is obtained by plastic deformation of the rivets instead of the sheets. The utilization of aluminum sheets and copper rivets allows extending the process scope of application from structural to energy distribution parts in which the electrical resistance of joints is a critical design parameter.http://www.sciencedirect.com/science/article/pii/S2666330923000171Lap jointsDouble-flush rivetingProcess sequenceSimulationExperimentation
spellingShingle R.F.V. Sampaio
P. Larue
J.P.M. Pragana
I.M.F. Bragança
C.M.A. Silva
P.A.F. Martins
Double-flush riveting by punching and compression
Journal of Advanced Joining Processes
Lap joints
Double-flush riveting
Process sequence
Simulation
Experimentation
title Double-flush riveting by punching and compression
title_full Double-flush riveting by punching and compression
title_fullStr Double-flush riveting by punching and compression
title_full_unstemmed Double-flush riveting by punching and compression
title_short Double-flush riveting by punching and compression
title_sort double flush riveting by punching and compression
topic Lap joints
Double-flush riveting
Process sequence
Simulation
Experimentation
url http://www.sciencedirect.com/science/article/pii/S2666330923000171
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