Title: Tooling design and development of set-up for hydro-mechanical deep drawing

Authors: Swadesh Kumar Singh, D. Ravi Kumar

Addresses: Department of Mechanical Engineering, GRIET, Bachupally, Hyderabad-72, India. ' Department of Mechanical Engineering, IIT Delhi, New Delhi-16, India

Abstract: Hydro-mechanical deep drawing is a process for producing cup shaped parts with the assistance of a pressurised fluid. The design and development of tooling for hydro-mechanical deep drawing process is discussed in this paper. In the present work, an experimental set-up has been designed and fabricated for drawing cylindrical flat bottom cups. To overcome the limitation of a single action press and to provide variable blank holding pressure during the draw, a hydraulic blank holding system has been designed and developed. Design of the set-up for hydro-mechanical deep drawing requires detailed considerations than that of the forming of components with conventional deep drawing. The different aspects of the development are discussed in this paper.

Keywords: hydromechanical deep drawing; counter pressure; tool design; deep drawing set-up; cylindrical cups; flat bottom cups; blank holding pressure; hydraulic blank holding; deep drawing tooling.

DOI: 10.1504/IJMTM.2009.026381

International Journal of Manufacturing Technology and Management, 2009 Vol.18 No.3, pp.245 - 261

Published online: 09 Jun 2009 *

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