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Reducing debinding time in thick components fabricated by powder injection molding

Paper presented at “7th International Powder Metallurgy Conference and Exhibition” (TPM-7), 24–28 June 2014, Gazi University, Ankara, Turkey.
  • Asghar Safarian , Mehmet Subaşi und Çetin Karataş
Veröffentlicht/Copyright: 12. Mai 2015
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International Journal of Materials Research
Aus der Zeitschrift International Journal of Materials Research Band 106 Heft 5

Abstract

Of the five steps in powder injection molding, namely feedstock formulation, mixing, injection, debinding and sintering, the one which markedly demands more time is debinding. Studying the effect of specimen thickness on debinding time in the current study, 316L stainless steel feedstock was exploited as the material for fabrication cylindrical specimens with varying thicknesses ranging from 2 to 10 mm. The thicker the specimen, the more time-consuming the debinding is. In addition, a novel method has been presented to produce thick components with large sections by powder injection molding, using preformed inserts in the injection stage. By using a wrought insert on which the feedstock is injected, the thickness of the injected section in need of debinding decreased while the whole thickness of the component was still large. Finally, defect-free specimens with diameter of 20 mm have been fabricated using inserts with different sizes, which resulted in dramatic reduction of debinding time from several days to only some hours. Moreover, it revealed that the interface of the insert and injected section was bonded properly, reaching more than 400 MPa of shear strength, depending on insert/part diameter ratio.

Keywords: Powder injection molding; Wrought insert; Diffusion welding; Pre-sintering; Insert/part diameter ratio
* Correspondence address, Mr. Asghar Safarian, Department of Manufacturing Engineering, Islamic Azad University, Maragheh, Iran, Tel: +98 914 105 4483, Fax: +98 4137454504, E-mail:

References

[1] B.O.Rhee: Ph.D.Thesis, Rensselaer Polytechnic Institute, School of Mechanical Engineering, Troy, NY, USA (1992).Suche in Google Scholar

[2] S.Krug, J.R.G.Evans, J.H.H.ter Maat: J. Am. Ceram. Soc.82 (1999) 2094. 10.1111/j.1151-2916.1999.tb02046.xSuche in Google Scholar

[3] V.A.Krauss, A.A.M.Oliveira, A.N.Klein, H.A.Al-Qureshi, M.C.Fredel: J. Mater. Process. Technol.182 (2007) 268. 10.1016/j.jmatprotec.2006.08.004Suche in Google Scholar

[4] W.Liu, X.Yang, Zh.Xie, C.Jia, L.Wang: J. Eur. Ceram. Soc.32 (2012) 2187. 10.1016/j.jeurceramsoc.2011.06.006Suche in Google Scholar

[5] R.V.B.Oliveira, V.Soldi, M.C.Fredel, A.T.N.Pires: J. Mater. Process. Technol.160 (2005) 213. 10.1016/j.jmatprotec.2004.06.008Suche in Google Scholar

[6] M.A.Omar, R.Ibrahim, M.I.Sidik, M.Mustapha, M.Mohamad: J. Mater. Process. Technol.140 (2003) 397. 10.1016/S0924-0136(03)00772-6Suche in Google Scholar

[7] S.M.Ani, A.Muchtar, N.Muhamad, J.A.Ghani: Ceram. Int.40 (2014) 2819. 10.1016/j.ceramint.2013.10.032Suche in Google Scholar

[8] R.K.Enneti, T.S.Shivashankar, S.J.Park, R.M.German, S.V.Atre: Powder Technol.228 (2012) 14. 10.1016/j.powtec.2012.04.027Suche in Google Scholar

[9] J.E.Zorzi, C.A.Perottoni, J.A.H.da Jornada: Mater. Lett.57 (2003) 3784. 10.1016/S0167-577X(03)00179-4Suche in Google Scholar

[10] A.Safarian, Ç.Karataş: Mater. Test.56 (2014) 842. 10.3139/120.110639Suche in Google Scholar

[11] W.W.Yang, K.Y.Yang, M. Ch.Wang, M.H.Hon: Ceram. Int.29 (2003) 745. 10.1016/S0272-8842(02)00226-2Suche in Google Scholar

[12] D.L.Olson (Ed.): ASM Handbook, welding, brazing, and soldering, Vol. 6, ASM International 6 (1993) 964.Suche in Google Scholar

[13] M.G.Fillabi, A.Simchi, A.H.Kokabi: Mater. Des.29 (2008) 411. 10.1016/j.matdes.2007.01.004Suche in Google Scholar

Received: 2014-10-08
Accepted: 2015-02-03
Published Online: 2015-05-12
Published in Print: 2015-05-13

© 2015, Carl Hanser Verlag, München

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  2. Contents
  3. Original Contributions
  4. Thermodynamic description of the Ti–O system
  5. Influence of MgO on the phase equilibria in the CuOx–FeOy–MgO–SiO2 system in equilibrium with copper alloy – Part I: methodology and liquidus in the tridymite primary phase field
  6. Experimental phase diagram of the V–Si–Ho ternary system
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  8. Effect of quench–ageing treatment on the microstructure and properties of Zn-15Al-3Cu alloy
  9. Grain growth and thermal stability in nanocrystalline Fe–B alloys prepared by melt spinning
  10. Microatmosphere sintering of Fe-3.2Mn-1.5Si-0.5C steel in flowing technical nitrogen
  11. Structural, thermal and optical studies of nanocomposite powder NiSb + Sb produced by mechanical alloying
  12. Effect of Mo/B atomic ratio on the properties of Mo2NiB2-based cermets
  13. Improving the stoichiometry of RF-sputtered amorphous alumina thin films by thermal annealing
  14. Assessment on the contact factors of a sandwich soft finger model – An experimental investigation
  15. Reducing debinding time in thick components fabricated by powder injection molding
  16. Short Communications
  17. Rapid synthesis of Ag nanoparticles and Ag@SiO2 core–shells
  18. Electrical conductivity of bismuth doped dysprosia stabilized zirconia as an electrolyte material for SOFC
  19. People
  20. Prof. Dr.-Ing. Lorenz Singheiser on the occasion of his 65th birthday
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https://doi.org/10.3139/146.111212
Schlagwörter für diesen Artikel
Powder injection molding; Wrought insert; Diffusion welding; Pre-sintering; Insert/part diameter ratio

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Original Contributions
  4. Thermodynamic description of the Ti–O system
  5. Influence of MgO on the phase equilibria in the CuOx–FeOy–MgO–SiO2 system in equilibrium with copper alloy – Part I: methodology and liquidus in the tridymite primary phase field
  6. Experimental phase diagram of the V–Si–Ho ternary system
  7. Experimental study of the phase relationships in the Al-rich corner of the Al–Si–Fe–Cr quaternary system at 700 °C
  8. Effect of quench–ageing treatment on the microstructure and properties of Zn-15Al-3Cu alloy
  9. Grain growth and thermal stability in nanocrystalline Fe–B alloys prepared by melt spinning
  10. Microatmosphere sintering of Fe-3.2Mn-1.5Si-0.5C steel in flowing technical nitrogen
  11. Structural, thermal and optical studies of nanocomposite powder NiSb + Sb produced by mechanical alloying
  12. Effect of Mo/B atomic ratio on the properties of Mo2NiB2-based cermets
  13. Improving the stoichiometry of RF-sputtered amorphous alumina thin films by thermal annealing
  14. Assessment on the contact factors of a sandwich soft finger model – An experimental investigation
  15. Reducing debinding time in thick components fabricated by powder injection molding
  16. Short Communications
  17. Rapid synthesis of Ag nanoparticles and Ag@SiO2 core–shells
  18. Electrical conductivity of bismuth doped dysprosia stabilized zirconia as an electrolyte material for SOFC
  19. People
  20. Prof. Dr.-Ing. Lorenz Singheiser on the occasion of his 65th birthday
  21. DGM News
  22. DGM News
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