The development of experimental machines in order to understand the demands of incremental sheet forming of titanium

Oosthuizen, G. A. ; Nortje, H. ; Herselman, E. J. ; Akdogan, G. ; Sacks, N. (2011-09)

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Conference of the ISEM 2011 Proceedings, Stellenbosch, South Africa, 21 - 23 September 2011.

Conference theme - Innovative Systems Thinking: Unravelling Complexity for Successful Solutions

Proceedings International

Titanium sheet-metal is extensively used for aerospace and biomedical applications. The diversified customer's demands have created a recent trend towards the small batch production. In this context incremental forming has attained great attention. Therefore, experimental machines are designed and manufactured to simulate the harsh forming conditions. In the fretting machine the combination of a normal force and small vibrations may constitute a wear phenomenon known as fretting wear. The friction and wear properties of the tool, lubrication and work piece materials are tested using the sliding test machine. The steps to evaluate and develop these machines as research tools are illustrated and discussed. The fretting- and sliding machines help to investigate suitable forming tools, forming parameters and lubricant strategies for incremental forming of titanium. It is concluded that these simulation tools provide more efficient and cost effective ways to understand the effects of changing the forming conditions.

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