铜包钢线连续挤压包覆模拟实验及机理研究.PDF

6 3 Vol. 6 No.3 001 6 Journal of Kunming University of Science and Technology Jun. 001 闫 琳, 钟 毅, 张志豪 ( , 650093) 采用模拟实验装置模拟了CONFORM 连续挤压包覆双金属工艺, 结果表明模拟实验是可 行的, 并得出了 有冶金结合界面的Cu/ Steel 复合线材. 根据实验参数, 采用数值模拟的方法研 究了Cu/ Steel 双金属连续挤压包覆的成形极限图. : 连续挤压; 铜包钢复合线材; 成形极限图 : TB331 : A : 1007- 855X( 001) 03- 101- 05 0 Cu/ Steel : , ; . , , . , ; . : [ 1] CP . : . , , Cu/ Steel . CONFORM Cu/ Steel . , CONFORM . 1- 外挤压筒; - 内挤压筒; 3- 固定挡板; 4- 挤压凸模; 5- 挤压凹模 [2] 1 CONFORM 2 CONFORM : 001- 0 - 19; : ( ( 98E03Z) ; : ( 1976~ ) , , , . ∀ 10 ∀ 6 1 CONFORM CONFORM 1. : . , , , , , [ ] , . 2 CONFORM 2. 1 CONFORM Cu/ Steel . , , CONFORM . ( ) . , : , , ; : ; : , ; : , , . 2. 2 : . , , , , . CONFORM , CONFORM , : CONFORM , , CONFORM . 2. 3 99. 5% , , 30mm, 50mm, 350MPa. , . 0mm, 700MPa. 3 Cu/ Steel ( 600 ) 4 Cu/ Steel ( 200 ) 2. 4 , 1000 ! , . 5 , , (450 ! ) . 6. 0mm, = 8, 9 T . 3 , : ∀ 103∀ 3 Cu/ Steel , , . 3 4 Cu/ Steel . : , , . Cu/ Steel , , 56. , EPMA1600 , 7 8 . : Cu/ Steel ( 7a) , Cu ( ) ( 7b) . Cu/ Steel ( 8ab) , , . 5 Cu/ Steel ( 600 ) 6 Cu/ Steel ( 200 ) (a) ( b) 7 Cu/ Steel , , , . . , ∀ 104 ∀ 6 Cu/ Steel . (a) ( b)