Orthogonal Array Technique for Optimizing the Sintering Parameter of the Metal Injection Molding (MIM) Compact: Best Flexure Strength

Abstract:

Sintering is a key step in the metal injection moulding (MIM) process, which affects the mechanical properties of the sintered part. The mechanical property of the sintered compact is resulted from tremendous sintered part densification. The paper presents an optimisation of the sintering parameter for the best flexure strength of the fine SS316L water atomised powder compact. The L9 (34) orthogonal array is used in the study and four replication of the flexure strength has been recorded at each experiment trial. The analysis of variance (ANOVA) signifies the sintering variables are highly significant to the flexure strength, α = 0.005. The study demonstrates that the cooling rate is the most influential variable that contributes to the best flexure strength, followed by heating rate, dwell time and sintering temperature.

• Periodical: Advanced Materials Research (Volumes 264-265)
• Pages: 290-294
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.264-265.290
• Online since: June 2011
• Authors: Khairur Rijal Jamaludin, Norhamidi Muhamad, Mohd Nizam Ab. Rahman, Sufizar Ahmad, Mohd Halim Irwan Ibrahim, Nor Hafiez Mohamad Nor
• Keywords: Flexure Strength, Metal Injection Molding (MIM), Orthogonal Array, Sintering

References

[1] Information on http: /en. wikipedia. org/wiki/Metal_injection_molding.

[2] S. Li, B. Huang, D. Li, Y. Li, S. Liang & H. Zhou: Powder Metallurgy Vol. 46 No 3 (2003), pp.241-245.

[3] G. Fu, N.H. Loh, S.B. Tor, B.Y. Tay, Y. Murakoshi & R. Maeda: Applied Physics A: Materials Science and Processing Vol. 81 (2005), pp.495-500.

[4] R.P. Koseski, P. Suri, N.B. Earhardt, R.M. German & Y.S. Kwon: Materials Science and Engineering Vol. A390 (2005), pp.171-177.

[5] P. Suri, R.P. Koseski & R.M. German: Materials Science and Engineering Vol. A402 (2005), pp.341-348.

[6] B. Berginc, Z. Kampuš & B. Šuštaršič: Journal of Achievements in Materials and Manufacturing Engineering Vol. 15 No 1-2 (2006), pp.63-70.

[7] Khairur Rijal Jamaludin, Norhamidi Muhamad, Mohd Nizam Ab. Rahman, Sri Yulis M. Amin, Murtadhahadi: The Journal of the Institution of Engineers, Malaysia Vol. 69 No. 2 (2008), pp.40-46.

[8] K.R. Jamaludin, N. Muhamad, S.Y.M. Amin, M.N. Ab. Rahman, M.H. Ismail, I. Murtadhahadi: Advances in Powder Metallurgy and Particulate Materials Vol. 1 Part 1 (2008).

[9] C.H. Ji, N.H. Loh, K.A. Khor & S.B. Tor: Materials Science and Engineering A311 (2001), pp.74-82.

[10] K.R. Jamaludin, N. Muhamad, M.N. Ab. Rahman, S.Y.M. Amin, S. Ahmad, M.H.I. Ibrahim: Proceeding of the 3rd International Symposium, South East Asian Technical University Consortium (SEATUC) (2009).

[11] Park, S.H. Robust design and analysis for quality engineering (Chapman & Hall, UK 1996).