0
research-article

Investigation of forming cylindrical parts in a modified hydrodynamic deep drawing assisted by radial pressure with inward flowing liquid

[+] Author and Article Information
Milad Sadegh yazdi

PhD student, Advanced Material Forming Research Center, Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, 48187-1167, Iran
mi.sadeghi@stu.nit.ac.ir

Mohammad Bakhshi-jooybari

Professor, Advanced Material Forming Research Center, Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, 48187-1167, Iran
bakhshi@nit.ac.ir

Abdolhamid Gorji

Associate Professor, Advanced Material Forming Research Center, Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, 48187-1167, Iran
hamidgorji@nit.ac.ir

Mohsen Shakeri

Professor, Fuel Cell Research Center, Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, 48187-1167, Iran
shakeri@nit.ac.ir

Maziar Khademi

MSc graduate, Advanced Material Forming Research Center, Department of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, 48187-1167, Iran
m.khademi@stu.nit.ac.ir

1Corresponding author.

ASME doi:10.1115/1.4038512 History: Received June 01, 2017; Revised November 06, 2017

Abstract

Among the sheet hydroforming processes, hydrodynamic deep drawing process has been used to form complex shapes and can produce parts with high drawing ratio (DR). Studies showed that radial pressure created on the edge of the sheet, can decrease the drawing force and increase DR. Thus, increasing of radial pressure to an amount greater than chamber pressure, and independent control of these pressures, is the basic idea in this study. In this research, the effect of radial and chamber pressures on formability of St13 and pure copper sheets in the process of hydrodynamic deep drawing assisted by radial pressure (HDDRP) with inward flowing liquid is investigated. Giving that a significant portion of the maximum thinning of the formed part occurs in the beginning of the process, the pressure supply system used in the experimental tests was designed in a way which provides simultaneous control of the radial and chamber pressures throughout the process. Thickness distribution, forming force and tensile stresses are the parameters that were evaluated in this study. Results indicated that using a higher radial pressure than the chamber pressure and controlling their values in the initial stages of the process enhances the thickness distribution of the formed part in all regions. A comparison between the thickness distribution and maximum forming force of the formed parts by the HDDRP and HDDRP with inward flowing liquid methods showed that by applying the later method parts with more uniform thickness distribution and less maximum thinning and forming force can be achieved.

Copyright (c) 2017 by ASME
Topics: Pressure , Copper , Shapes , Tension
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In