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Development of Porous Metal Mold Material using Vacuum Sintering Method
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 Title & Authors
Development of Porous Metal Mold Material using Vacuum Sintering Method
Kim, Dong-Won; Cho, Kyu-Il; Kim, Hyun-Keun; Kang, Ja-Youn; Rhee, Won-Hyuk; Hwang, Keum-Cheol;
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 Abstract
The porous metal material is used for injection metal mold with a great deal of gas production because it makes plenty of gas exhausted through pores formed in the metal mold. A canning HIP method was conventionally used for manufacturing of porous metals, but because of difficulty of process control and high cost of production its application was limited. In this experiment, porous metal mold material was produced by an enhanced vacuum sintering method with simply controlled and economical process and porosities/mechanical properties with variation of sintering temperature and duration time during vacuum sintering were studied. As a result, quality goods were obtained at optimized conditions as follows: sintering temperature of , duration time of 2 hr and showed superior properties in wear loss and thermal conductivity and the same properties in hardness, TRS (Transverse Rupture Strength), and thermal expansion coefficient in comparison with those under canning HIP.
 Keywords
Porous metal mold;Porous material;Vacuum sintering;Canning HIP;Injection mold;
 Language
Korean
 Cited by
 References
1.
K. L. Kim, S. I. Chung, Y. G. Im, H. D. Jeong, S. W. Lee, H. J. Choi, J. Kor. Sci. Pre. Eng., (2002) 1026

2.
K. S. Oh, D. Y. Kim, S. J. Cho, J. Am. Ceram. Sci., 78 (1995), 2537 crossref(new window)

3.
강석중, 장시영, 분말재료공학, (사)한국분말야금학회(2004), pp.183

4.
H.Y. Bor, C. Hsu, C.N. Wei, Mater. Chem. Phys. 84 (2004) pp.284 crossref(new window)

5.
S. K. Kim, UOU report, 21 (1990), pp.73

6.
J. K. Kim, H. C. Yang, K. T. Kim, Kor. Sci. Mecha. Eng., 27 (2003), pp.1076

7.
H.Y. Bor, C. Hsu, C.N. Wei, Mater. Chem. Phys. 84 (2004) pp.284 crossref(new window)

8.
김학신, 금속열처리, Prentice Hall(2001), pp.17, 119

9.
W. F. Smith, Structure and Properties of Alloys, Mc graw hill(2007), pp.27, 65

10.
강석중, 소결(치밀화, 입자성장과 미세조직), 과학문학사(2000), pp.136