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Concepts for a Seat Backrest Structure Using Extruded Magnesium Profiles

Sikora, Sebastian P. and Beeh, Elmar (2021) Concepts for a Seat Backrest Structure Using Extruded Magnesium Profiles. 78th Annual IMA World Magnesium Virtual Conference 2021, 23.-27. Aug. 2021, Fukuoka, Japan (virtuell).

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In large-scale production of vehicle seat structures, high and ultra-high strength steel alloys prevail because of challenging requirements, mainly concerning passenger safety. The project FUMAS (Functionally integrated magnesium lightweighting for automobile seat structures) aimed at weight reduction by using extruded magnesium (an alloy of the type MgMnCe) and novel process routes in manufacturing. Concepts for a lighter seat back structure have been developed, dimensioned and evaluated. The underlying predevelopment process is based on numerical as well as experimental methods at different levels - coupon, generic component and demonstrator level. Good-natured, ductile failure behavior has been observed using rectangular closed profiles in bending at high testing speeds, which makes the use of the alloy promising for seat applications. The proposed backrest structure builds on a three-part magnesium frame assembly that is joined to so-called mobile steel gussets at the transition to the seat area. Two alternative structural concepts have been developed utilizing different joining technologies - friction stir welding and injection adhesive bonding.

Item URL in elib:https://elib.dlr.de/143658/
Document Type:Conference or Workshop Item (Speech)
Title:Concepts for a Seat Backrest Structure Using Extruded Magnesium Profiles
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Sikora, Sebastian P.sebastian.sikora (at) dlr.deUNSPECIFIED
Beeh, Elmarelmar.beeh (at) dlr.deUNSPECIFIED
Date:24 August 2021
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:magnesium alloy ME21, joining technology, friction stir welding (FSW), injection adhesive bonding, automobile seat structure, volume production
Event Title:78th Annual IMA World Magnesium Virtual Conference 2021
Event Location:Fukuoka, Japan (virtuell)
Event Type:international Conference
Event Dates:23.-27. Aug. 2021
Organizer:International Magnesium Association, USA
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - Energie und Verkehr, V - NGC Fahrzeugstruktur II
Location: Stuttgart
Institutes and Institutions:Institute of Vehicle Concepts > Material and Process Applications for Road and Rail Vehicles
Institute of Vehicle Concepts
Deposited By: Sikora, Sebastian
Deposited On:11 Oct 2021 13:42
Last Modified:11 Oct 2021 13:42

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