Pengoptimuman parameter pengacuan suntikan terhadap ketumpatan jasad anum untuk komposit aloi titanium-wolastonit

Translated title of the contribution: Optimization of injection molding parameter towards density of green part for titanium alloy-wollastonite composite

Mohd Ikram Ramli, Abu Bakar Sulong, Norhamidi Muhamad, Andanastuti Muchtar, Mohd Yusuf Zakaria

Research output: Contribution to journalArticle

Abstract

The development of titanium alloy (Ti6Al4V)/wollastonite (WA) composite getting high demand especially in bone implant applications. Ti6Al4V is a type of metal alloy that well known for its high mechanical properties and biocompatibility while ceramic WA is a bioglass materials which is bioactive and suitable for implan application. The powder injection molding process (PIM) is a powder technology process that can produce small and complex shapes at a low cost. The low density of green part can cause defects such as cracks that occur during the debinding and sintering process. Therefore, an optimum green part to density is essential to produce a composite that good in mechanical and physical properties. This study focuses on the effects of the molding process parameters on green part of Ti6Al4V/WA composite. The powder loading value was 67.0 vol. %. Ti6Al4V and WA powder with their weight percentages are 90:10 were mixed together with 60 wt. % palm stearin (SS) and 40 wt. % polyethylene (PE) to produced feedstock. The optimum parameters obtained for the injection molding process are determined by the Taguchi’s method based on density of the green part as follows: injection temperature of 130°C, mold temperature of 50°C, injection pressure of 13 bar, holding time of 10 s. The highest average density value is 3.095 g/cm3. Analysis of variance shows that the injection temperature gives the highest influence which is 57.63% to obtain a green part with highest density. The confirmation test shows that the green part produced are within the expected of performance optimum range. The production of green part that free from defects is important to determine the good mechanical and physical properties of the sintered part.

Original languageMalay
Pages (from-to)2869-2875
Number of pages7
JournalSains Malaysiana
Volume47
Issue number11
DOIs
Publication statusPublished - 1 Nov 2018

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Titanium alloys
Injection molding
Powders
Composite materials
Mechanical properties
Physical properties
Bioactive glass
Defects
Taguchi methods
Analysis of variance (ANOVA)
Biocompatibility
Molding
Temperature
Feedstocks
Polyethylenes
Bone
Sintering
Cracks
Metals
Costs

ASJC Scopus subject areas

  • General

Cite this

Pengoptimuman parameter pengacuan suntikan terhadap ketumpatan jasad anum untuk komposit aloi titanium-wolastonit. / Ramli, Mohd Ikram; Sulong, Abu Bakar; Muhamad, Norhamidi; Muchtar, Andanastuti; Zakaria, Mohd Yusuf.

In: Sains Malaysiana, Vol. 47, No. 11, 01.11.2018, p. 2869-2875.

Research output: Contribution to journalArticle

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