Adhesively Bonded Blanks for Local Reinforcements in Body-in-White Manufacturing

authored by: G. Wisner, E. Stammen, K. Dilger, A. Spiekermeier, M. Jalanesh, Sven Hübner, B. A. Behrens
Abstract: Adhesively bonded blanks are manufactured using a method for combined forming and bonding of locally reinforced parts for body-in-white in the automotive and truck industry. The method allows lightweight constructions with steel sheets by generally reducing the thickness of body parts and compensates stiffness as well as strength by steel grades of higher yield points and locally applied reinforcement sheets where necessary. Applying adhesive bonding in the body-in-white shops implies certain boundary conditions, such as bonding on oiled surfaces and curing at cataphoretic burn-in after coating. Adhesive bonding, with the forming process being employed between, was successfully applied with film adhesives based on different polymer families and works the best in two steps, as the formation of already bonded and cured parts causes much damage to the bond lines. Due to the early softening stage in the electro coat (EC) burn-in oven, the adhesive in most cases needs the assistance of an additional fixation technique to avoid negative results of unwanted spring-back behaviour (especially with reinforcement sheets with higher yield points). Efficient auxiliary techniques for fixation are usually not based on adhesive technology because of a process-related short time frame. Three different fixation techniques additionally to the adhesive bonding of the reinforcement sheets were investigated in a research project. This paper discusses options and results on the complex interaction between forming and adhesive bonding.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): Technische Universität Braunschweig
Type: Article
Journal: Journal of Adhesion
Volume: 92
Pages: 698-721
No. of pages: 24
ISSN: 0021-8464
Publication date: 30.03.2016
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Chemistry, Mechanics of Materials, Surfaces and Interfaces, Surfaces, Coatings and Films, Materials Chemistry
Electronic version(s): https://doi.org/10.1080/00218464.2015.1123154 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{68b3f1d158734ed48bdd001c6ca1b157,
title = "Adhesively Bonded Blanks for Local Reinforcements in Body-in-White Manufacturing",
abstract = "Adhesively bonded blanks are manufactured using a method for combined forming and bonding of locally reinforced parts for body-in-white in the automotive and truck industry. The method allows lightweight constructions with steel sheets by generally reducing the thickness of body parts and compensates stiffness as well as strength by steel grades of higher yield points and locally applied reinforcement sheets where necessary. Applying adhesive bonding in the body-in-white shops implies certain boundary conditions, such as bonding on oiled surfaces and curing at cataphoretic burn-in after coating. Adhesive bonding, with the forming process being employed between, was successfully applied with film adhesives based on different polymer families and works the best in two steps, as the formation of already bonded and cured parts causes much damage to the bond lines. Due to the early softening stage in the electro coat (EC) burn-in oven, the adhesive in most cases needs the assistance of an additional fixation technique to avoid negative results of unwanted spring-back behaviour (especially with reinforcement sheets with higher yield points). Efficient auxiliary techniques for fixation are usually not based on adhesive technology because of a process-related short time frame. Three different fixation techniques additionally to the adhesive bonding of the reinforcement sheets were investigated in a research project. This paper discusses options and results on the complex interaction between forming and adhesive bonding.",
keywords = "Adhesively bonded blanks, Elastic spring-back, Film adhesive, Lightweight manufacturing, Patchwork, Two-step bonding",
author = "G. Wisner and E. Stammen and K. Dilger and A. Spiekermeier and M. Jalanesh and Sven H{\"u}bner and Behrens, {B. A.}",
year = "2016",
month = mar,
day = "30",
doi = "10.1080/00218464.2015.1123154",
language = "English",
volume = "92",
pages = "698--721",
journal = "Journal of Adhesion",
issn = "0021-8464",
publisher = "Taylor and Francis Ltd.",
number = "7-9",
}