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Closed-loop gap bridging control for remote laser welding of aluminum components based on first principle energy and mass balance
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Franciosa, Pasquale, Serino, Armando, Botros, Rehab Al and Ceglarek, Darek (2019) Closed-loop gap bridging control for remote laser welding of aluminum components based on first principle energy and mass balance. Journal of Laser Applications, 31 (2). 022416. doi:10.2351/1.5096099
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WRAP-closed-loop-gap-bridging-remote-laser-welding-principle-balance-Ceglarek-2019.pdf - Accepted Version - Requires a PDF viewer. Download (1515Kb) | Preview |
Official URL: http://doi.org/10.2351/1.5096099
Abstract
Remote laser welding (RLW) has been successfully deployed for steel products, particularly doors, closures, and hang-on parts with overlap seam welding configurations. The growing demand for light-weight body structures has created interesting opportunities to apply RLW to fillet welding with the application to aluminum components. However, seamless migration from seam welding of steel to fillet welding of aluminum is limited by the following challenges: weld seam tracking capability to compensate trim edge variations; hot cracking resulting from the interaction between material chemistry and heat dissipation; and form error variations leading to unwanted part-to-part gaps, which in the absence of filling material must be bridged only by autogenous material. This paper focuses on the aspect of the part-to-part gap bridging and proposes a model to select and adjust welding process parameters to control the volume of the molten pool and achieve gap bridging. The proposed model is based on the observation that gap bridging is impaired by five distinct failure modes. Each mode is modeled by first-principle energy and mass balance criteria. Selection of welding parameters is presented by a set of gap bridging capability charts which helps to prevent failure modes and select feasible weld process parameters.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science > WMG (Formerly the Warwick Manufacturing Group) | ||||||
| Journal or Publication Title: | Journal of Laser Applications | ||||||
| Publisher: | Laser Institute of America | ||||||
| ISSN: | 1042-346X | ||||||
| Official Date: | 22 April 2019 | ||||||
| Dates: |
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| Date of first compliant deposit: | 19 July 2019 | ||||||
| Volume: | 31 | ||||||
| Number: | 2 | ||||||
| Article Number: | 022416 | ||||||
| DOI: | 10.2351/1.5096099 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
| Publisher Statement: | This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. | ||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||
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