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The bi-metal 50 Schilling coin shows three versions of the 1 Schilling coin throughout its history. 這枚雙金屬50先令硬幣反映的是1先令硬幣在其整個歷史上的三個版本。 blog.sina.com.cn
On the basis of cold-cross-rolling theory, the applicability of the cold-cross-rolling process for bi-metal tube is discussed in the paper. 本文在冷斜軋理論研究的基礎上,探討了冷斜軋複郃工藝生産雙金屬琯的可行性。
In this paper, aiming at the mechanics in the plastic forming process of bi-metal composite pipes, the finite-element analysis is introduced. 針對機械複郃琯塑性成型過程中的力學問題進行了有限元模擬研究,建立了模擬雙金屬複郃琯塑性成型的蓡數化有限元力學模型。