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RESEARCH PRODUCT

A new approach to study material bonding in extrusion porthole dies

Livan FratiniClaudio GiardiniElisabetta CerettiFrancesco Gagliardi

subject

Engineeringbusiness.product_categorybusiness.industryMechanical EngineeringPorthole dies BondingProcess (computing)Mechanical engineeringWeldingIndustrial and Manufacturing Engineeringlaw.inventionlawDie (manufacturing)ExtrusionFe modelbusinessSettore ING-IND/16 - Tecnologie E Sistemi Di Lavorazione

description

Abstract Porthole die extrusion processes are widely spread even for most recent industrial applications. In turn knowledge base is often linked to make best expertise rather than to scientific fundaments. In the last years several FE models were developed but actual material bonding was not taken into account. In the paper a new approach is presented determining the critical value of the bonding criterion from flat rolling experiments and modelling the actual welding occurring in extrusion of complex profiles. The criterion was tested considering an industrial porthole die extrusion process and experimental parts were analysed to validate the proposed approach.

yearjournalcountryeditionlanguage
2009-01-01CIRP Annals
https://doi.org/10.1016/j.cirp.2009.03.010