搅拌摩擦焊在海军装备上的应用

Applications of Friction Stir Welding to Naval Weaponry

概述了搅拌摩擦焊的工作原理及其特性,搅拌摩擦头材料与设计,被焊接工件的固定,模拟和模型技术的应用,以及它在船舶和两栖突击车上的应用可行性。试验结果表明,这种先进的固相焊接技术十分适合船用5000、6000和7000系铝合金与两栖突击车用2195铝合金,船体结构钢(DH-36,EH-36,未来航空母舰和水面战斗舰艇使用的HSLA-65高强度低合金钢),双体船用无磁不锈钢AL-6XN,推进器用Ni-Al铜合金等材料的连接。着重叙述了该技术的试验研究取得的成果与需要进一步探讨和解决的重大技术问题。

This paper introduces the principle and characteristics of friction stir welding （FSW） , the materials and design of shoulder and pin of FSW, the fix of welded workpiece, the application of simulation and modeling techniques, as well as the feasibility of its applications to naval weaponry such as advanced amphibious assault vehicle （AAAV） and ships. The experimental results show that advanced solid phase FSW technology is a very suitable jointing method for ship aluminum alloys such as 5000, 6000 and 7000 series, 2195 aluminum alloy for AAAV armor, hull structural steels （ e. g. DH/EH-36, HSLA-65 steel for future aircraft cartier and surface warship） , non-magnetic stainless steel of AL-6XN for catamaran, Ni-Al copper alloy for marine propeller, etc. The experimental results of FSW are emphasized, and the important technical issues which need to be further solved are discussed.