Deformability of Stainless Steel Sheets and Effects of Lubricants on It

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  • ステンレス鋼板の加工性と潤滑
  • ステンレス コウハン ノ カコウセイ ト ジュンカツ

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Abstract

A study has been made mainly of the effects of dry lubricant films on the press formability and the galling of austenitic and ferritic stainless steel sheets. The results obtained are summerized as follows:<BR>(1) The galling occurs more easily on stainless steel as compared with carbon steel, but it is possible to suppress the galling by using dry lubricant film.<BR>(2) The deformability of sheet is remarkably improved by film, therefore ferritic stainless steel sheet with the film has rather good press formability than 18-8 steel sheet with conventional high lubricating oil.<BR>(3) In round-bottomed punch stretching (punch dia. 97mm, die dia. 100mm), the effect of the film is in the same as (2) above, and the change of strain in thickness in the stretching with the film is similar to it in hydraulic bulging, but in Erichsen test it's effect is small. It must be noted that dimensions of punch and die have a large effect on the thickness changes in the stretching.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 63 (5), 824-831, 1977

    The Iron and Steel Institute of Japan

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