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A look at the optimization of robot welding speed based on process modelling
Högskolan Väst, Institutionen för teknik, matematik och datavetenskap.ORCID-id: 0000-0002-4329-418X
Högskolan Väst, Institutionen för teknik, matematik och datavetenskap.ORCID-id: 0000-0001-7787-5444
2007 (engelsk)Inngår i: Welding Journal, ISSN 0043-2296, Vol. 86, nr 8, s. 238-244Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Simulation tools to search for optimal process parameters are of great interest to reduce the number of experiments and thereby reduce cost and production time. In this paper, robot simulation has been used in combination with finite element simulations to optimize robot speed in order to minimize distortion while keeping complete joint penetration. In an earlier work performed by the authors, a finite element model was developed to predict heat transfer and residual stresses of parts with complex shapes. An interface between a robot simulation model and a finite element analysis model was also constructed. In this paper, an iterative method for robot speed optimization has been developed using MATLAB. The algorithm is designed to maintain complete joint penetration while maximizing productivity by utilizing the fastest weld speed. The method makes it possible to optimize the heat input to the component and thereby minimize component deformation for parts with complex shapes. The system was evaluated on stainless steel plates with varying thicknesses. Robot weld paths were defined off line and automatically downloaded to the finite element software where the optimization was performed. Simulations and experimental validations are presented.

sted, utgiver, år, opplag, sider
2007. Vol. 86, nr 8, s. 238-244
Emneord [en]
Finite Element Analysis (FEA); Off-Line Programming (OLP); Robot simulation; Temperature; Weld velocity; Welding speed; Computer simulation; Finite element method; Optimization; Parameter estimation; Process control; Robotics; Thermal effects
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
URN: urn:nbn:se:hv:diva-2571OAI: oai:DiVA.org:hv-2571DiVA, id: diva2:326631
Tilgjengelig fra: 2010-06-23 Laget: 2010-06-23 Sist oppdatert: 2017-12-12bibliografisk kontrollert
Inngår i avhandling
1. Simulation fo Robot Paths and Heat Effects in Welding
Åpne denne publikasjonen i ny fane eller vindu >>Simulation fo Robot Paths and Heat Effects in Welding
2006 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Trollhättan: Högskolan Väst, 2006. s. 160
Emneord
Robotics, Svetsning, robotteknik
HSV kategori
Forskningsprogram
TEKNIK, Produktions- och materialteknik
Identifikatorer
urn:nbn:se:hv:diva-2575 (URN)91-628-6869-1 (ISBN)978-91-628-6869-7 (ISBN)
Merknad
Diss. Lund : Lunds universitet, 2006Tilgjengelig fra: 2010-06-30 Laget: 2010-06-24 Sist oppdatert: 2014-05-08bibliografisk kontrollert

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