NDLI: A Process Comparison of Simple Stretch Forming Using Both Conventional and Electrically-Assisted Forming Techniques

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Joshua, J. Jones Mears, Laine
Copyright Year	2010
Abstract	A common manufacturing process typically used to create large surface contours in sheet metal is stretch forming. With this process, the ability to create geometrically accurate parts and smooth surfaces is achievable, yet there are certain limits when considering the achievable elongation of the material and the inability to produce sharp contours in the sheet metal. Present research using Electrically-Assisted Manufacturing (EAM) has shown that applying direct electrical current to the workpiece during the forming process can increase the formability and reduce springback of the material, while also lowering the required forming forces. Seeing the advantageous qualities of EAM, this study examines the use of EAM for a simple stretch forming process. Specifically, this research examines this stretch forming process with regards to how the location where the electrical current is applied to the material affects the process, the achievable forming depth without fracture, and the application direction of the current. Overall results displayed that the directional flow of electrical current and the application location did not affect the obtained forming forces or forming depths using EAM.
Sponsorship	Manufacturing Engineering Division
Starting Page	623
Ending Page	631
Page Count	9
File Format	PDF
ISBN	9780791849460
DOI	10.1115/MSEC2010-34144
e-ISBN	9780791838877
Volume Number	ASME 2010 International Manufacturing Science and Engineering Conference, Volume 1
Conference Proceedings	ASME 2010 International Manufacturing Science and Engineering Conference
Language	English
Publisher Date	2010-10-12
Publisher Place	Erie, Pennsylvania, USA
Access Restriction	Subscribed
Subject Keyword	Stretch forming Electrically-assisted manufacturing Sheet metal Model-based control Forming techniques Fracture (process) Fracture (materials) Manufacturing Electric current Flow (dynamics) Elongation
Content Type	Text
Resource Type	Article

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