金屬超塑狀態下正擠壓變形力的工程計算

Engineering Calculation about Deformation Force of Superplastic Extrusion

摘要: 利用主應力法,結合金屬超塑性力學方程,推出了金屬超塑性正擠壓變形力的計算式;對TangS提出的金屬超塑性擠壓模型進行了訂正和改進。采用鋅鋁共析合金對理論計算公式進行了實驗驗證。

Abstract: Calculation formulae of superplastic extrusion are derived through the Sach's method in plastic analysis and Backofen's constitutive equation of superplasticity. Calculating formula and modle of Tang S are improved insuperplastic extrusion.Calculus of the theory are experimentlly studied through superplastic with Zn-22Al.