An Investigation of Injection Parameters of Ti-6Al- 7NbFabricated by Powder Injection Molding

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Politeknik Dergisi
Volume:20 Issue:2
An Investigation of Injection Parameters of Ti-6Al- 7NbFabricated by Powder Injection Molding

An Investigation of Injection Parameters of Ti-6Al- 7NbFabricated by Powder Injection Molding

Authors : Mehmet SUBAŞI, Asghar SAFARIAN, Çetin KARATAŞ

Pages : 393-399

View : 40 | Download : 10

Publication Date : 2017-06-01

Article Type : Research Paper

Abstract :In this study, the optimized injection parameters for a feedstock obtained by mixing the powder of Ti-6Al-7Nb and 31wt% binder system insert ignore into journalissuearticles values(comprised of high-density polyethylene, Polypropylene, PEG 20000, paraffin wax and stearic acid);, were determined. In order to investigate the fabrication of a component, flow rate, injection pressure, holding pressure, injection temperature and mold temperature were studied at three levels to obtain the optimum injection parameters. It was proven that for feedstock comprised of 69wt% Ti-6Al-7Nb powder, the suitable set of injection parameters were as follows: flow rate of 20 cm3/s, injection pressure of 1300 bar, holding pressure of 60%, injection temperature of 140 °C and mold temperature of 60 °C. At the end of the experiments the tensile strength of specimens fabricated with optimum parameters, were as high as 631 MPa
Keywords : Ti 6Al 7Nb, Powder Injection Molding, Injection, Sintering

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