Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad

Metal Injection Molding (MIM) process has some features such as shape complexity, low production cost and tight tolerance. The MIM process consists of four steps such as mixing, injection molding, debinding and sintering. These steps are dependent upon the types of binder used. Successful production...

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Main Authors:	Mohamad Nor, Nor Hafiez, Ismail, Muhammad Hussain, Muhamad, Norhamidi
Format:	Research Reports
Language:	English
Published:	Research Management Institute (RMI) 2011
Online Access:	http://ir.uitm.edu.my/id/eprint/17285/ http://ir.uitm.edu.my/id/eprint/17285/2/LP_NOR%20HAFIEZ%20MOHAMAD%20NOR%20RMI%2011_5.pdf

id	uitm-17285
recordtype	eprints
spelling	uitm-172852019-10-17T03:47:08Z http://ir.uitm.edu.my/id/eprint/17285/ Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad Mohamad Nor, Nor Hafiez Ismail, Muhammad Hussain Muhamad, Norhamidi Metal Injection Molding (MIM) process has some features such as shape complexity, low production cost and tight tolerance. The MIM process consists of four steps such as mixing, injection molding, debinding and sintering. These steps are dependent upon the types of binder used. Successful production of parts by MIM is closely related to the binder system utilized. The role of the binder is to serve as a temporary or transient phase to impart flowabiHty and moldability to the powder mixture. This will enable the shaping of the feedstock to the desired shape during injection molding.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-6A1-4V) powder mix with binder 60wt% of palm stearin and 40wt% polyethylene. The characterisation of Ti-6A1-4V 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. The feedstock is loaded with Ti-6A1-4V at volume ranging 63, 65, 67, and 69 percentages. The binder composition consists of 60% palm stearin and 40% polyethylene based on weight fraction. The feedstock that is suitable for injection molding has possessed the highest value in shear sensitivity (n-1), lowest activation energy (E) and highest moldability index, (CCSTV). Optimization of the rheological data shows that feedstock of 63vol % has the best rheological properties when it flow at 144.68°C. Research Management Institute (RMI) 2011 Research Reports NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/17285/2/LP_NOR%20HAFIEZ%20MOHAMAD%20NOR%20RMI%2011_5.pdf Mohamad Nor, Nor Hafiez and Ismail, Muhammad Hussain and Muhamad, Norhamidi (2011) Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad. [Research Reports] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
description	Metal Injection Molding (MIM) process has some features such as shape complexity, low production cost and tight tolerance. The MIM process consists of four steps such as mixing, injection molding, debinding and sintering. These steps are dependent upon the types of binder used. Successful production of parts by MIM is closely related to the binder system utilized. The role of the binder is to serve as a temporary or transient phase to impart flowabiHty and moldability to the powder mixture. This will enable the shaping of the feedstock to the desired shape during injection molding.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-6A1-4V) powder mix with binder 60wt% of palm stearin and 40wt% polyethylene. The characterisation of Ti-6A1-4V 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. The feedstock is loaded with Ti-6A1-4V at volume ranging 63, 65, 67, and 69 percentages. The binder composition consists of 60% palm stearin and 40% polyethylene based on weight fraction. The feedstock that is suitable for injection molding has possessed the highest value in shear sensitivity (n-1), lowest activation energy (E) and highest moldability index, (CCSTV). Optimization of the rheological data shows that feedstock of 63vol % has the best rheological properties when it flow at 144.68°C.
format	Research Reports
author	Mohamad Nor, Nor Hafiez Ismail, Muhammad Hussain Muhamad, Norhamidi
spellingShingle	Mohamad Nor, Nor Hafiez Ismail, Muhammad Hussain Muhamad, Norhamidi Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad
author_facet	Mohamad Nor, Nor Hafiez Ismail, Muhammad Hussain Muhamad, Norhamidi
author_sort	Mohamad Nor, Nor Hafiez
title	Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad
title_short	Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad
title_full	Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad
title_fullStr	Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad
title_full_unstemmed	Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad
title_sort	characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / nor hafiez mohamad nor , muhammad hussain ismail and prof. dr. norhamidi muhamad
publisher	Research Management Institute (RMI)
publishDate	2011
url	http://ir.uitm.edu.my/id/eprint/17285/ http://ir.uitm.edu.my/id/eprint/17285/2/LP_NOR%20HAFIEZ%20MOHAMAD%20NOR%20RMI%2011_5.pdf
first_indexed	2023-09-18T22:57:58Z
last_indexed	2023-09-18T22:57:58Z
_version_	1777417981330980864

Characterization of newly developed feedstock in metal injection moulding application using titanium mix with palm stearin binder system / Nor Hafiez Mohamad Nor , Muhammad Hussain Ismail and Prof. Dr. Norhamidi Muhamad

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