TY - JOUR
T1 - Development of warm compacted and high temperature sintered P/M sprockets for silent chain system of DIG (Direct Injection Gasoline) automotive engines
AU - Fujiki, Akira
AU - Maekawa, Yukihiro
AU - Mabuchi, Yutaka
AU - Watanabe, Takaya
AU - Sugaya, Yoshimi
AU - Iwakiri, Makoto
AU - Sibano, Takashi
PY - 2002/5
Y1 - 2002/5
N2 - The authors have previously reported on the warm compacted and normal temperature (1140°C) sintered P/M sprockets of the roller chain system of non-DIG (normal MPI gasoline) engines. In this new development, the mechanical properties of several warm-compacted and high-temperature sintered P/M steels were investigated. A wear test was also conducted to examine the anti-wear characteristics of these material using dummy engines. Finally, sprockets of silent chain system of DIG engines were developed that can endure sever wear conditions. The base powder used was a hybrid material (Distaloy DC1). It was 2mass%Ni (nickel) and was diffusion bonded to pre-alloy Fe-1.5mass%Mo (molybdenum) powder. The warm compaction was conducted with the powder, die and tools at 130°C. The sintering temperature was 1190°C and heat treatment was also applied to the sprockets.
AB - The authors have previously reported on the warm compacted and normal temperature (1140°C) sintered P/M sprockets of the roller chain system of non-DIG (normal MPI gasoline) engines. In this new development, the mechanical properties of several warm-compacted and high-temperature sintered P/M steels were investigated. A wear test was also conducted to examine the anti-wear characteristics of these material using dummy engines. Finally, sprockets of silent chain system of DIG engines were developed that can endure sever wear conditions. The base powder used was a hybrid material (Distaloy DC1). It was 2mass%Ni (nickel) and was diffusion bonded to pre-alloy Fe-1.5mass%Mo (molybdenum) powder. The warm compaction was conducted with the powder, die and tools at 130°C. The sintering temperature was 1190°C and heat treatment was also applied to the sprockets.
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U2 - 10.2497/jjspm.49.438
DO - 10.2497/jjspm.49.438
M3 - Article
AN - SCOPUS:0036578165
SN - 0532-8799
VL - 49
SP - 438
EP - 443
JO - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
JF - Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
IS - 5
ER -