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Application of RSM Technique to Optimize the Solvent Debinding Process for MIM Compacts

M. Amin, Sri Yulis and Muhamad, Norhamidi and Abdullah, Shahrir and Jamaludin, Khairur Rijal (2008) Application of RSM Technique to Optimize the Solvent Debinding Process for MIM Compacts. In: Brunei International Conference of Engineering & Technology (BICET) 2008, 3 and 4th November 2008, Brunei Darulsallam.



Extraction of polyethylene glycol (PEG) from metal injection molding compact has been investigated at various powder loadings, leaching temperatures and times, referred as independent variables. Central composite rotatable design (CCRD) of experiments is used to study the effect of these independent variables on the brown body’s strength, or a dependent variable. This paper reports the use of Response Surface Methodology (RSM) technique to optimize the processing factors for solvent debinding gas atomized 316L stainless steel (of average size 11.2 µm-fine and 19.6 µm-coarse) for maximum brown strength. For fine powder (11.2 µm), to achieve maximum brown strength of 5.6 MPa, the optimised values were as follow; powder loading 64% volume, debinding temperature of 60oC and debinding time at 2 hours. Meanwhile from the optimized values of powder loading (64% volume), debinding temperature (59oC) and debinding times (3 hours), the maximum brown strength for coarse powder obtained was 5 MPa. This protocol provides improved opportunities for solvent debinding techniques particularly to extract PEGs from the moulded components mathematically without experimentation.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Solvent debinding, PEG, RSM.
Subjects:T Technology > TS Manufactures
Divisions:Mechanical Engineering
ID Code:6882
Deposited By: Khairur Rijal Jamaludin
Deposited On:16 Nov 2008 12:35
Last Modified:01 Jun 2010 15:48

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