발간논문

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Vol.32, No.11, 1297 ~ 1307, 1994
Title
A Study on the Effect of Electro - galvanzing on strain Distribution in Sheet Steel Forming
김인수In Soo Kim, 이대영Daeyong Lee
Abstract
To know the effect of the electro-galvanized layer for corrosion protection on the strain distribution in sheet metal forming, we studied and analyzed the variational behavior of strain distribution with the computer aided in bare and electro-galvanized sheet steels which were deformed under the various forming variables. Experimental results, the punch load and concentration of strain distribution of electro-galvanized sheet steel cups which are deformed showed lower values than those of bare steels in low punch speed and are reversed in high punch speed. We could analyze these phenomena in relation with the change of friction coefficient under the various forming variables.
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