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Characterisation of titanium alloy feedstock for metal injection moulding using palm stearin binder system

Mohamad Nor, N. H. and Muhamad, Norhamidi and Jamaludin, Khairur Rijal and Ahmad, Sufizar (2009) Characterisation of titanium alloy feedstock for metal injection moulding using palm stearin binder system. In: The International Conference on Advances in Materials and Processing Technologies, 26-28 October 2009, Kuala Lumpur, Malaysia.

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Abstract

Metal injection moulding (MIM) is a cost-effective technique for producing small, complex, precision parts in high volume. Each step in MIM process plays a vital role in order to achieve high quality final product. To have a good understanding of the MIM process and successful in manufacturing, characterisation of the material feedstock is essential. This paper presents the characterization of MIM feedstock consisting titanium alloy (Ti-6Al-4V) powder mix with binder 60wt% of palm stearin and 40wt% polyethylene. The characterisation of Ti-6Al-4V alloy powder, binders and feedstock includes scanning electron micrograph (SEM), thermo gravimetric analysis (TGA), differential scanning calorimeter (DCS) and rheological test were established. Rheological results exhibited pseudoplastic or shear thinning flow behaviour, where its viscosity decreased with increasing shear rate. The feedstock viscosity also decreased with increasing temperature and was found to be suitable for moulding

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Metal injection Moulding, palm stearin, feedstock, rheological
Subjects:T Technology > TS Manufactures
Divisions:Mechanical Engineering
ID Code:9770
Deposited By: Khairur Rijal Jamaludin
Deposited On:29 Mar 2010 08:15
Last Modified:02 Jun 2010 02:03

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