Stamp Forming of Polypropylene Based Polymer-Metal Laminates: The Effect of Process Parameters on Spring Back

Abstract:

This paper investigates the effect of process parameters such as Blank Holder Force (BHF) and Feed Rate, on the spring back behavior of a polymer metal laminate (PML) system comprised of aluminum and polypropylene. Specimens were formed over a hemispherical punch in stamp forming process. A novel real time strain measuring system, ARAMIS, was employed to capture the strain evolution during forming. The results of this work indicate that both BHF and feed-rate exert influence in PML spring back behavior. Fundamental correlation between strain evolution during spring back and the shape of the finished part will be presented. A major finding from this work is that aluminum dominates the spring back behavior of PML in stamp forming.

• Periodical: Advanced Materials Research (Volumes 875-877)
• Pages: 423-427
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.875-877.423
• Online since: February 2014
• Authors: Wen Tian Wang, Sudharshan Venkatesan, Anthony Sexton, Shankar Kalyanasundaram
• Keywords: Polymer Metal Laminate (PML), Springback, Stamp Forming

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