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Theoretical and experimental analysis of hydropiercing
Volvo Car Corporation, Olofström, Sweden.ORCID-id: 0000-0001-8542-9006
Volvo Car Corporation, Olofström, Sweden.
Sapa Profiles.
Sapa Profiles.
2003 (engelsk)Inngår i: SAE technical paper series, ISSN 0148-7191, artikkel-id 2884Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this study, hydropiercing after hydroforming and prior to unloading was investigated. The primary purpose of this study was to investigate how the used hydropiercing method and the selected material and process parameters affect the hole quality. Hydropiercing inwards, hydropiercing by folding the ’scrap’ piece inwards and hydropiercing outwards were tested. The tube material was extruded AA6063-T4. The tube diameter and wall thickness were 107 mm and 2.5 mm respectively. Straight 1110-mm long tubes of this material were first hydroformed at 1300 bar and then hydropierced. Assuming that the largest (in magnitude) acceptable deflection at the hole edge is 0.2 mm, hydropiercing inwards at ≥ 1300 bar yield the best hole quality. However, the remaining scrap piece (in the tube) causes a handling problem that must be solved.

sted, utgiver, år, opplag, sider
Society of Automotive Engineers, 2003. artikkel-id 2884
Emneord [en]
Experimental analysis; Hole edge; Hole quality; Long tubes; Process parameters; Tube diameters; Wall thickness, Unloading, Tubes (components)
HSV kategori
Identifikatorer
URN: urn:nbn:se:oru:diva-55293DOI: 10.4271/2003-01-2884Scopus ID: 2-s2.0-84881215336OAI: oai:DiVA.org:oru-55293DiVA, id: diva2:1071264
Tilgjengelig fra: 2017-02-03 Laget: 2017-02-03 Sist oppdatert: 2017-11-29bibliografisk kontrollert

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