Paper Title:

Machines and Tools for Sheet-Bulk Metal Forming

Periodical Key Engineering Materials (Volume 473)
Main Theme Sheet Metal 2011
Edited by J.R. Duflou, R. Clarke, M. Merklein, F. Micari, B. Shirvani and K. Kellens
Pages 91-98
DOI 10.4028/www.scientific.net/KEM.473.91
Citation Marion Merklein et al., 2011, Key Engineering Materials, 473, 91
Online since March, 2011
Authors Marion Merklein, A. Erman Tekkaya, Alexander Brosius, Simon Opel, Lukas Kwiatkowski, Björn Plugge, Sebastian Schunk
Keywords FE Simulation, Incremental Sheet Forming (ISF), Rolling, Sheet-Bulk-Metal Forming
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Abstract

The demand on closely-tolerated and complex functional components in the automotive sector, like e.g. synchronizer rings, leads to the development of a new process-class named “sheet-bulk metal forming”. Within this technology bulk metal forming operations are applied on sheet metals. In the following two novel approaches considering machines and tools for sheet-bulk metal forming are presented. The first approach aims on a technology based on rolling, which is suitable for mass production. The second one is an incremental forming solution for low batch production. Both machine concepts allow the application of different forming strategies to manufacture individual tailored semi-finished products in term of a pre-distribution of material. These products feature variable sheet thicknesses and mechanical properties, which can be adapted to their case of applica-tion. Depending on the individual batch size, the blanks can be finished to functional parts by sub-sequent forming processes like deep drawing and upsetting, extrusion or incremental forming. In this paper the case of an incremental tooth-forming is mainly considered. Forming sequences and resulting loads are modeled and calculated by finite elements simulations for all discussed processes to serve as a basis for the design and dimensioning of the machine components and forming tools.