Influence of component design on extrusion processes in sheet-bulk metal forming
- PDF / 2,464,008 Bytes
- 12 Pages / 595.276 x 790.866 pts Page_size
- 95 Downloads / 221 Views
ORIGINAL RESEARCH
Influence of component design on extrusion processes in sheet-bulk metal forming F. Pilz 1 & M. Merklein 1 Received: 14 March 2019 / Accepted: 25 October 2019 # The Author(s) 2019
Abstract Nowadays, the functional integration of workpieces challenges existing forming processes. The combination of established forming processes – like sheet metal and bulk forming – offers the possibility to counter this issue. The application of bulk forming operations on sheet metal semi-finished products, also called sheet-bulk metal forming (SBMF), is an innovative approach. The potential of SBMF cannot be fully exploited, as there are no recommendations in terms of workpiece design and layout influence on the process result. Therefore, this paper focuses on the analysis of semi-finished products and component design parameters on resulting part and process properties in two extrusion processes in SBMF. The investigation is based on a combined numerical and experimental approach. It is shown that the investigated design parameters, in addition to the achievable dimensional accuracy, substantially influence the occurring tool loads as well as the required process forces. Keywords Sheet-bulk metal forming . Extrusion . Sheet forming . Simulation . Component design
Introduction Forming technology processes offer advantages compared to alternative production technologies in terms of partcomplexity [1] and -properties [2]. The requirements on forming processes with regard to the functional integration are continuously increasing [3]. For this reason, the efficiency of standard processes is exceeded, whereby innovative process combinations gain in importance [4]. The combination of established forming processes – such as sheet metal forming and bulk forming – offers the possibility to combine the respective advantageous properties [5]. One such process technology that applies bulk forming operations on semi-finished sheet metal products is the so-called sheet-bulk metal forming (SBMF) [5]. Forward (FE) and lateral extrusion (LE) [6] are considered to be the standard processes for bulk and deep drawing [7] for sheet metal forming. The potential of sheet bulk metal forming is currently of only limited use. Compared to conventional methods there are no guidelines for workpiece * F. Pilz [email protected] 1
Institute of Manufacturing Technology, Department Mechanical Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
design or knowledge of their influence on the process result. With regard to this background, this article focuses on the research of two sheet-bulk metal forming processes to counter this issue.
Objective and methodology The use of SBMF processes is currently limited by missing process knowledge in terms of the influence of the semifinished product and workpiece-specific aspects on the process result. For this reason, the objective of this research work is to obtain an understanding of the fundamental relationships between the design of extrusion parts in sheet-bul
Data Loading...
