Authors: Beerwald, C.
Homberg, W.
Pröbsting, A.
Title: Investigation of the Electrohydraulic Forming Process with respect to the Design of Sharp Edged Contours
Language (ISO): en
Abstract: The overcoming of design constraints with respect to forming of sharply contoured sheet metal workpieces made of high strength steel or other materials which are difficult to form is an important aspect in sheet metal part production. One interesting solution to extend existing forming limits can be the use of electrohydraulic forming as single forming operation or in combination with quasi-static hydroforming. Apart from promising results regarding the feasible part geometries this process allows a quite efficient production due to its potential to reduce equipment expenses. Current research work at the Chair of Forming and Machining Technology (LUF) at Paderborn University deals with a comparison of investigations on both processes, quasistatic and high speed hydroforming. Recent results show an adequate comparison of achievable edge radii using an oblong die geometry and sheet metal made of thin stainless steel. It can be seen that when using electrohydraulic forming an increase of discharge energy leads to smaller radii than achievable by quasi-static hydroforming. An additional potential can be seen in the process characteristic itself because the very short pressure pulse allows a significant reduction of locking forces using only the inertia of the tooling mass.
Subject Headings: high-speed hydroforming
near net-shaped contouring/radius
Issue Date: 2010
Provenance: Institut für Umformtechnik - Technische Universität Dortmund
Is part of: 4th International Conference on High Speed Forming, March 9th-10th 2010 Columbus, Ohio, USA
Appears in Collections:ICHSF 2010

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