(哈爾濱工業(yè)大學(xué) 材料科學(xué)與工程學(xué)院，哈爾濱 150001)
摘 要: 利用此方法對(duì)葉輪鍛件成形過(guò)程中兩個(gè)典型截面上4條流線及其軸向應(yīng)變進(jìn)行了測(cè)量分析，并定量給出該復(fù)雜鍛件成形過(guò)程中變形及應(yīng)變分布規(guī)律。因而該方法是測(cè)試模鍛成形過(guò)程中金屬塑性變形流動(dòng)較為有效的實(shí)驗(yàn)手段。
關(guān)鍵字: 模鍛；塑性變形；應(yīng)變分布
（School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China）
Abstract:A new method named lantern rings screw thread method, was put forward in order to solve the difficulties in measuring the strain and streamlines distribution during die forging of complex components. This method can not only measure but also analyze quantitatively the deformation of die forging without substituted material. The strain distribution can be obtained, when using the method to analyze the axial strain and the four streamlines of two typical sections during the deformation of a compressor impeller. So it can be used as a reliable experimental method to examine the strain distribution during die forging.
Key words: die forge; plastic deformation; strain distribution
