小型・薄肉形状の造形に適した新しい粉末成形技術

DOI Web Site 被引用文献1件 参考文献1件

書誌事項

タイトル別名
  • Advanced Powder Processing Technology for Forming of Tiny and Thin Shape Products
  • コガタ ・ ウスニク ケイジョウ ノ ゾウケイ ニ テキシタ アタラシイ フンマツ セイケイ ギジュツ

この論文をさがす

抄録

In order to improve the compactibility of tiny and thin thickness products, we have developed a new die compacting method which uses MIM’s raw material. A thin cup with a diameter of φ 2 was formed as an example. The W–Ni mixed powder and binder were kneaded and formed the pellets by backward extrusion, and clarified their deformation behavior. It was found that the deformation behavior consists of 3 stages; an initial stage of deformation until the pellet contact with the die as a result of upsetting, an intermediate stage of deformation from the contact with the die until the extrusion of the cup wall begins, during which the cavity is filled, and a final stage of deformation at which the wall undergoes further extrusion. The fluidity (viscosity) of the kneaded material becomes dominant at the molding of the cup wall part, and molding of a wall is increasingly influenced by pressure loss as decreasing wall thickness. Eventually, a compacting technology was established for cup shapes having a minimum thickness of 0.05 mm in the green compact which resulted in 0.04 mm by sintering.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ