Experimental Investigation of Friction-Drilled Bushings for Metal-Plastic In-Mold Assembly

authored by: M. Droß, T. Ossowski, K. Dröder, E. Stockburger, H. Wester, B. A. Behrens
Abstract: The in-mold assembly process can be used for the production of lightweight hybrid components made of metals and plastics. The connection between the different materials is often realized by a form fit joint. Conventional through-injection points enable the load transfer between the materials. However, through-injection points have disadvantages in the transmission of multiaxial loads. Furthermore, notch effects often occur under load, which can lead to premature failure in the material interface. As a result, the dimensions of the hybrid component or the amount of through-injection points are oversized. In order to increase the bond strength, the use of a friction-drilled bushing was investigated. First, friction drilling tests for varied parameters were performed and analyzed. Second, lap shear tests on hybrid components for appropriate bushings were carried out. The findings obtained have been transferred to the design of a demonstrator. Here, the connection quality between metal and plastic was determined by means of quasi-static and impact load tests. The joint using a friction-drilled bushing thereby confirms the advantages of the enlarged effective area for load transfer compared to conventional through-injection points.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): Technische Universität Braunschweig
Type: Contribution to book/anthology
Pages: 199-208
No. of pages: 10
Publication date: 02.02.2023
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Industrial and Manufacturing Engineering, Economics, Econometrics and Finance (miscellaneous), Safety, Risk, Reliability and Quality
Electronic version(s): https://doi.org/10.1007/978-3-031-18318-8_21 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inbook{f78bf286cf4b4dd58c3a4a8f84b70057,
title = "Experimental Investigation of Friction-Drilled Bushings for Metal-Plastic In-Mold Assembly",
abstract = "The in-mold assembly process can be used for the production of lightweight hybrid components made of metals and plastics. The connection between the different materials is often realized by a form fit joint. Conventional through-injection points enable the load transfer between the materials. However, through-injection points have disadvantages in the transmission of multiaxial loads. Furthermore, notch effects often occur under load, which can lead to premature failure in the material interface. As a result, the dimensions of the hybrid component or the amount of through-injection points are oversized. In order to increase the bond strength, the use of a friction-drilled bushing was investigated. First, friction drilling tests for varied parameters were performed and analyzed. Second, lap shear tests on hybrid components for appropriate bushings were carried out. The findings obtained have been transferred to the design of a demonstrator. Here, the connection quality between metal and plastic was determined by means of quasi-static and impact load tests. The joint using a friction-drilled bushing thereby confirms the advantages of the enlarged effective area for load transfer compared to conventional through-injection points.",
keywords = "Bond strength, Friction drilling, In-mold assembly, Metal-plastic hybrids",
author = "M. Dro{\ss} and T. Ossowski and K. Dr{\"o}der and E. Stockburger and H. Wester and Behrens, {B. A.}",
note = "Funding Information: The authors would like to express gratitude to the companies Flowdrill FlieΒform-werkzeuge GmbH and Volkswagen AG for providing the friction drills and the materials for the experimental investigations. Furthermore, the authorswould like to thank the industrial partners in this research project for the scientific discussion. The Insti-tute of Joining andWelding of the TU Braunschweig is thanked for providing the test equipment for the impact tests. This research was funded by the Federal Ministry for Economic Affairs and Climate Action on the basis of a decision of the German Bundestag. It was organised by the German Federation of Industrial Research Associations (Arbeitsgemeinschaft industrieller Forschungsvereinigungen, AiF) as part of the program for Industrial Collective Research (Industrielle Gemeinschaftsforschung, IGF) under grant number 20711N",
year = "2023",
month = feb,
day = "2",
doi = "10.1007/978-3-031-18318-8_21",
language = "English",
isbn = "978-3-031-18317-1",
series = "Lecture Notes in Production Engineering",
publisher = "Springer Nature",
pages = "199--208",
booktitle = "Lecture Notes in Production Engineering",
address = "United States",
}