Effect of weld line positions on the tensile deformation of two-component metal injection moulding

Anchalee Manonukul; Sukrit Songkuea; Pongporn Moonchaleanporn; Makiko Tange

doi:10.1007/s12613-017-1531-1

Volume 24 Issue 12

Dec. 2017

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(12): 1384-1393

Anchalee Manonukul, Sukrit Songkuea, Pongporn Moonchaleanporn, and Makiko Tange, Effect of weld line positions on the tensile deformation of two-component metal injection moulding, Int. J. Miner. Metall. Mater., 24(2017), No. 12, pp. 1384-1393. https://doi.org/10.1007/s12613-017-1531-1

Cite this article as:

Anchalee Manonukul, Sukrit Songkuea, Pongporn Moonchaleanporn, and Makiko Tange, Effect of weld line positions on the tensile deformation of two-component metal injection moulding, Int. J. Miner. Metall. Mater., 24(2017), No. 12, pp. 1384-1393. https://doi.org/10.1007/s12613-017-1531-1

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Research Article

Effect of weld line positions on the tensile deformation of two-component metal injection moulding

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Corresponding author:
Anchalee Manonukul E-mail: anchalm@mtec.or.th
Received: 13 March 2017; Revised: 19 May 2017; Accepted: 22 May 2017

Abstract

Abstract

Knowledge of the mechanical properties of two-component parts is critical for engineering functionally graded components. In this study, mono-and two-component tensile test specimens were metal injection moulded. Three different weld line positions were generated in the two-component specimens. Linear shrinkage of the two-component specimens was greater than that of the mono-component specimens because the incompatibility of sintering shrinkage of both materials causes biaxial stresses and enhances sintering. The mechanical properties of 316L stainless steel were affected by the addition of a coloured pigment used to identify the weld line position after injection moulding. For the two-component specimens, the yield stress and ultimate tensile stress were similar to those of 316L stainless steel. Because 316L and 630 (also known as 17-4PH) stainless steels were well-sintered at the interface, the mechanical properties of the weaker material (316L stainless steel) were dominant. However, the elongations of the two-component specimens were lower than those of the mono-component specimens. An interfacial zone with a microstructure that differed from those of the mono-material specimens was observed; its different microstructure was attributed to the gradual diffusion of nickel and copper.
- co-meal injection moulding;
- 316L stainless steel;
- 630 stainless steel;
- joining position;
- tensile deformation

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References

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