Analysis of isothermal forging process and mechanical properties of complex aluminum forging for aviation

被引：2

作者：

Hu Jian-liang ^{[1
]}

Yi You-ping ^{[1
]}

Huang Shi-quan ^{[1
]}

机构：

[1] Cent South Univ, Sch Mech & Elect Engn, Changsha 410083, Peoples R China

来源：

JOURNAL OF CENTRAL SOUTH UNIVERSITY | 2014年 / 21卷 / 07期

关键词：

aviation forging; isothermal forging process; uniformity; fracture toughness; SHAPE;

D O I：

10.1007/s11771-014-2220-0

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Large complex 7A85 aluminum wing-body joint was forged employing isothermal forging process and its mechanical properties were studied. The tensile strength after forging is up to 587.5 MPa in longitudinal direction, 15% higher than that using free forging. Moreover, the tensile strength of the forging is almost the same in three directions. Isothermal forging also performs well on overall fracture toughness, with a maximum value of 39.8 MPa.m(1/2), and that of short transverse direction all reaches 36 MPa.m(1/2) and above, with a maximum relative error of only 3.6%. The results indicate that the isothermal forging leads to better performance as well as higher uniformity in mechanical properties.

引用

页码：2612 / 2616

页数：5

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