Browsing Makina Mühendisliği by Subject "Metals -- Cold working."

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Combined tension and torsion testing of aluminum and polyethylene

Korkmaz, Sami. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1985., 1985.)

In this study, the plastic deformation behaviour of five different types of materials have been investigated by performing combined telsion and torsion experiments on thin-walled tubular specimens. The effects of annealing, ...
Metal flow in forward cold extrusion

Önelge, Raci. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)

In this work, experiments with a small-scale extrusion apparatus are described. Billets of commercially pure lead, which has the diameter of 50 mm were extruded at romm temperature into 25 mm diameter solid bars at an ...
Optimum preform and die shape design for improved hardness distribution in cold forged parts

Tümer, Haluk. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)

To predict and then to control hardness distribution in a cold formed part is important, since it is a critical property due to its effects on the forgability of the part and its performance in use. In cold forming processes, ...

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