Automated design evolution for parametric design applied on computer-aided welding fixture designs

Vasos Arnaoutis*, Bojana V. Rosic, Eric Lutters

*Corresponding author for this work

Research output: Contribution to journalConference articleAcademicpeer-review

1 Citation (Scopus)
45 Downloads (Pure)


Design engineers are required to deliver design solutions by a fixed deadline. Increasing demand for shortening lead time limits the exploratory and creative freedom of the designer. This paper proposes an automated design system that can substitute part of the repetitive and standardized tasks in the design process, increasing efficiency and shifting the design engineer's efforts to creative work. Computer Aided Welding Fixture Design is an engineering domain increasingly being pressed for shortening lead time. Welding Fixture Designs are multi-part structures that secure an assembly product during a welding process. The compact and complex assembly product to be fixed and welded presents a configuration and geometric challenge for the fixture regarding sequence, collisions, tolerances, welding path, human interaction, etc. This paper presents the welding fixture design problem in its general form. To describe the freedom of automation, the paper introduces the term decision space as the subset of a design space feasible by automation. Depending on the desired outcome, the decision space can be exploited through various strategies and automation approaches. This paper presents one of these approaches by implementing an evolutionary algorithm to the parametric fixture design problem of the use case. The results show reduced engineering efforts and the potential for expanding the exploratory spectrum of design proposals during conceptualization.

Original languageEnglish
Pages (from-to)999-1004
Number of pages6
JournalProcedia CIRP
Publication statusPublished - 8 Jul 2023
Event33rd CIRP Design Conference 2023 - Sydney , Australia
Duration: 17 May 202319 May 2023
Conference number: 33


  • Design Automation
  • Evolutionary Algorithm
  • Fixture
  • Parametric Design


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