Micro sheet hydroforming process of ultra-thin pure titanium foil
- Publication Type:
- Journal Article
- Key Engineering Materials, 2015, 626 pp. 397 - 401
- Issue Date:
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|KEM.626.397-Micro Sheet Hydroforming Process of Ultra-Thin Pure Titanium Foil.pdf||Published version||2.54 MB|
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A micro hydromechanical deep drawing is carried out using the pure titanium and the effect of fluid pressure on formability of pure titanium is investigated. The experiments are performed using the two kinds of pure titanium foils (TR270C-H and TR270C-O) and stainless steel foil (SUS304-H) with 50 thickness and the cylindrical and conical punches. As a result, it is found that the peeling off the oxide film of pure titanium can be reduced by applying the fluid pressure because the friction force and contact pressure between the blank and die decreases. However, the formability is lower for pure titanium than that for stainless steel because the tensile strength is low and the friction force is easy to increase as the friction force increases. In contrast, due to the low young modulus of pure titanium, the restriction of wrinkling, decrease of friction force and friction holding effect can be obtained at low fluid pressure. © (2015) Trans Tech Publications, Switzerland.
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