Development of warm compacted P/M sprockets for automotive engines

Akira Fujiki, Hisayoshi Kojima, Yukihiro Maekawa, Masato Yamaguchi, Takashi Murata, Yoshimi Sugaya, Makoto Iwakiri, Takashi Shibano

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Since the introduction of warm compaction in 1994, several new warm-compacted powder metallurgy (P/M) parts have been developed. However, the main applications to date have been limited to the parts for agricultural tools and machine tools. Only a few automotive parts have been developed by using the warm-compaction method. Engine parts have not been developed. Here, the mechanical properties and the wear resistance of warm-compacted P/M materials are investigated, and the developed warm-compacted P/M engine sprockets are presented. A method of controlling the powder temperature is also described. Fe-2%Cu-0.8% and Fe-4%Ni-1.5%Cu-0.5%Mo-0.8%C are used in the test.

Original languageEnglish
Pages (from-to)14-18
Number of pages5
JournalFenmo Yejin Jishu/Powder Metallurgy Technology
Issue number1
Publication statusPublished - 2003 Feb
Externally publishedYes


  • Automotive application
  • Engine sprocket
  • P/M parts
  • Warm compaction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Metals and Alloys


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