鋳鉄粉末を用いた金属粉末射出成形体の諸特性

• 滝田 光晴

  名古屋大学大学院工学研究科　工博

• 野村 宏之

  名古屋大学大学院工学研究科　工博

• 横井 浩二

  同大学院〔現　三菱自動車（株）〕

書誌事項

タイトル別名

• Properlies of Metal Injection Molded Materials Using Cast Iron Powder
• チュウテツフンマツ オ モチイタ キンゾク フンマツ シャシュツ セイケイタイ

抄録

  The metal injection molding process (MIM) is a key technology which makes it possible to form complicated 3-dimensional parts in near net shape. Cast iron has unique properties such as damping capacity. In this study, it is intented to study the properties of metal injection molded materials using cast iron powder. Water-atomized cast iron powder was deoxidized in vacuum. The deoxdized powder, spherical graphite powder, wax and resin were mixed and injected to the mold. The injected body was sintered by way of pre-sintering. The maximum tensile strength is 750 MPa which is comparable to that of ductile cast iron. The estimated damping capacity (logarismic decrement) is 450×10^-4, indicating exellent value as compared with gray iron. The reasons are considered as follows : Oxygen was reduced by carbon in the cast iron powder during deoxidization. Carbon diffuses to the matrix during pre-sintering. Graphite precipitates into the spherical pores during temperature drop after sintering. The high damping capacity and high tensile strength is considered to be obtained by the structure mixed with graphite particles and pores in matrix.

収録刊行物

• 鋳造工学

  鋳造工学 70 (2), 132-137, 1998

  公益社団法人 日本鋳造工学会

キーワード

• MIM (metal injection molding)
• cast iron
• damping capacity
• tensile strength
• graphite

詳細情報

• CRID: 1390001206506630400
• NII論文ID: 10002553452
• NII書誌ID: AN10514770
• DOI: 10.11279/jfes.70.132
• ISSN: 21855374
• ISSN: 13420429
• NDL書誌ID: 4403064
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4403064
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可