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Transition between flow-drill screwing systems considering joining process and joint characteristics

Altvater, Stephan and Sikora, Sebastian P. and Siefkes, Tjark (2022) Transition between flow-drill screwing systems considering joining process and joint characteristics. Advances in Industrial and Manufacturing Engineering. Elsevier. doi: 10.1016/j.aime.2022.100091. ISSN 2666-9129.

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Flow-drill screwing is one of the key joining technologies for car body structures in multi-material lightweight design. In the course of technological developments and subsequent volume production of a product, different assets are used to obtain the same joints, assuming that similar processes yield the same joint characteristics. Since a simple transfer of the process parameters for joining the same materials is usually not possible, a remarkable experimental effort is required to meet manufacturing requirements. In this study the transition to an enhanced flow-drill screwing system and its effects on the joint is investigated. For this purpose, two flow-drill screwing systems typically used in the automotive industry are considered. An application-oriented approach for determining the joining parameters is shown. First, the optimal joining parameters for the target system were determined based on the process curves and parameters of the initial system by fulfilling the requirements for the joint. The joints were evaluated by using cross sections and single-lap shear tests. On this basis, the results of both flow-drill screwing systems were compared. Due to the further development of the flow-drill screwing system the process times can be significantly shortened while achieving the same mechanical properties and better process control at the same time.

Item URL in elib:https://elib.dlr.de/187497/
Document Type:Article
Title:Transition between flow-drill screwing systems considering joining process and joint characteristics
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Altvater, Stephanstephan.Altvater (at) dlr.dehttps://orcid.org/0000-0002-0237-6410
Sikora, Sebastian P.sebastian.sikora (at) dlr.deUNSPECIFIED
Siefkes, Tjarktjark.siefkes (at) dlr.deUNSPECIFIED
Date:July 2022
Journal or Publication Title:Advances in Industrial and Manufacturing Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:No
DOI :10.1016/j.aime.2022.100091
Keywords:Flow-drill screwing; Joint characterization; Multi-material design; Mechanical testing
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - NGC Fahrzeugstruktur II
Location: Stuttgart
Institutes and Institutions:Institute of Vehicle Concepts > Material and Process Applications for Road and Rail Vehicles
Deposited By: Altvater, Stephan
Deposited On:18 Jul 2022 13:08
Last Modified:25 Jul 2022 08:31

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