搅拌摩擦焊概述（一）

搅拌摩擦焊专栏是《现代焊接》杂志与中国搅拌摩擦焊中心合作开辟的搅拌摩擦焊技术的科普专栏，包括以下专题——搅拌摩擦焊概述，搅拌摩擦焊优点。搅拌摩擦焊原理，搅拌摩擦焊历史，搅拌摩擦焊应用，搅拌摩擦焊设备，搅拌头设计和材料，搅拌摩擦焊可控参数和过程控制，搅拌摩擦焊匙孔去除技术，搅拌摩擦焊工艺改进，搅拌摩擦焊接头性能，搅拌摩擦焊点焊，铜、镁、钛、钢的搅拌摩擦焊，搅拌摩擦焊接头及夹具设计，搅拌摩擦焊检测技术，搅拌摩擦焊质量控制等。敬请关注![编者按]     

赛福斯特公司标准化搅拌摩擦焊设备（一）——静龙门搅拌摩擦焊设备

2002年,中国第一家专业化的搅拌摩擦焊技术授权公司——中国搅拌摩擦焊中心暨北京赛福斯特技术有限公司成立,开启了搅拌摩擦焊技术在中国的发展大门。     

中国首台动龙门搅拌摩擦点焊设备顺利投产

十年前,北京赛福斯特技术有限公司（中国搅拌摩擦焊中心）率先从英国引进搅拌摩擦焊技术专利许可及技术,并致力于搅拌摩擦焊技术在中国区域内的自主创新、发展和工业化应用。十年后,搅拌摩擦焊技术已成功应用于新一代飞机、导弹、火箭、高速列车、舰船、     

搅拌摩擦焊技术及其应用发展

简单介绍了搅拌摩擦焊FSW的技术特征,对当前搅拌摩擦焊FSW技术的主要应用领域进行了概述,着重对近些年搅拌摩擦焊的技术发展和最新应用进展进行介绍,同时对搅拌摩擦焊的应用前景进行了展望。     

中国高熔点材料搅拌摩擦焊接达到世界先进水平

搅拌摩擦焊技术是21世纪的焊接新技术,中航工业北京赛福斯特技术有限公司（中国搅拌摩擦焊中心）十余年如一日,致力于中国搅拌摩擦焊的技术研发和工业化应用,引领着搅拌摩擦焊技术在中国的发展方向,成功实现了搅拌摩擦焊技术在新一代飞机、火箭、导弹、高速列车、     

双轴肩搅拌摩擦焊技术在铝合金车体制造中的应用发展

针对双轴肩搅拌摩擦焊技术特点进行介绍,对双轴肩搅拌摩擦焊在铝合金车体制造中的应用现状进行了分析,并提出了由传统搅拌摩擦焊技术衍生出的新型搅拌摩擦焊技术在轨道车辆制造行业的未来发展趋势和应用对象。采用双轴肩搅拌摩擦焊工艺成为国内外的又一个研究热点,加快搅拌摩擦焊技术在铝合金车体应用对提高国内轨道车辆制造水平至关重要。     

《电焊机》杂志2004年1～6月份刊登计划

刊登时间刊登主题主要内容征稿截时间2004年1月搅拌摩擦焊技术2003年12月30日搅拌摩擦焊技术国内外发展现状及前景搅拌摩擦焊原理黑色及有色金属材料的搅拌摩擦焊工艺搅拌摩擦焊技术在实际生产中的应用搅拌摩擦焊接设备的研制搅拌头性能及搅拌头材料的发展2004年2月现代船舶工业高效焊接技术2003年12月30日我国现代船舶工业的发展状况船舶焊接技术现状与展望新型进口和国产焊接与切割设备在船舶焊接中的应用船舶制造中高效焊接技术CO2气体保护焊在修造船中的应用船舶厚板自动立向上焊接法船舶高效焊接材料的发展趋势2004年3月CO2焊接技术2…     

外加能量辅助搅拌摩擦焊的最新研究进展

外加能量辅助搅拌摩擦焊是一种在传统搅拌摩擦焊工艺的基础上加装辅助能量装置以克服传统搅拌摩擦焊技术一些固有缺点的一种新型焊接方法。综述了由激光、电流、电弧、感应加热组成的热能辅助搅拌摩擦焊和由超声振动提供的机械能辅助搅拌摩擦焊的国内外最新研究进展,介绍了上述几种辅助能量搅拌摩擦焊技术的基本原理,并针对各辅助能量搅拌摩擦焊技术优势和不足进行了分析评述,对该领域的未来发展进行了展望。     

搅拌摩擦焊设备和控制系统研究现状

搅拌摩擦焊设备是实现搅拌摩擦焊过程的前提和基础,搅拌摩擦焊技术的进步需要新型搅拌摩擦焊设备的支持。对搅拌摩擦焊设备和控制系统进行了介绍,对比分析了传统设备改造的搅拌摩擦焊机、搅拌摩擦焊专机以及工业机器人在刚性、柔性、成本等方面的特点。目前,由传统设备改造的搅拌摩擦焊机和搅拌摩擦焊专机仍然是搅拌摩擦焊生产的优选设备,其在刚性方面的优势为得到高质量的焊接接头奠定了基础。利用工业机器人进行搅拌摩擦焊具有很好的前景。焊接载荷控制系统一定程度上弥补了工业机器人刚性不足的缺点,大大扩展了该类设备的应用领域。     

中国第一届搅拌摩擦焊技术国际会议成功召开

<正> 由国防科技工业特种焊接技术研究应用中心、中国航空工业集团公司航空连接技术重点实验室、中国搅拌摩擦焊中心联合主办,中国机械工程学会焊接学会、中国搅拌摩擦焊中心搅拌摩擦焊专利许可协会、中航时代文化传播有限公司协办的"中国第一届搅拌摩擦焊技术国际会议"于2010年11月15日在广东珠海市隆重召开。大会主题围绕"面向二十一世纪的搅拌摩擦焊技术应用发展前沿",从搅拌摩擦焊技术基础研究、工业化应用、新方法新技术等方     

汽车制造驶上搅拌摩擦焊之路

新世纪汽车制造轻量化的发展趋势使铝合金、镁合金等轻质合金材料所占的比重越来越大，从而促进了新型搅拌摩擦焊技术在汽车制造中的应用。在简要介绍搅拌摩擦焊技术的基础上，重点一对搅拌摩擦焊技术在汽车稠造业中的应用进行了探讨和综述，并对国内外的搅拌摩擦焊工艺装备进行了简单介绍。     

Review on underwater friction stir welding: A variant of friction stir welding with great potential of improving joint properties

Friction stir welding (FSW) is a solid-state welding process which is capable of joining materials which are relatively difficult to be welded by fusion welding process. Further, this process is highly energy-efficient and environmental-friendly as compared to the fusion welding. Despite several advantages of FSW over fusion welding, the thermal cycles involved in FSW cause softening in joints generally in heat-treatable aluminum alloys (AAs) due to the dissolution or coarsening of the strengthening precipitates leading to decrease in mechanical properties. Underwater friction stir welding (UFSW) can be a process of choice to overcome these limitations. This process is suitable for alloys that are sensitive to heating during the welding and is widely used for heat-treatable AAs. The purpose of this article is to provide comprehensive literature review on current status and development of UFSW and its importance in comparison to FSW with an aim to discuss and summarize different aspects of UFSW. Specific attention is given to basic principle including material flow, temperature generation, process parameters, microstructure and mechanical properties. From the review, it is concluded that UFSW is an improved method compared with FSW for improving joint strength. Academicians, researchers and practitioners would be benefitted from this article as it compiles significantly important knowledge pertaining to UFSW.     

Recent progress in corrosion protection of friction stir welded high-strength aluminum alloy joints

Friction stir welding (FSW) has been widely used in many industries, with which high-strength aluminum alloys can be well joined. However, the corrosion resistance of FSW high-strength Al alloy joints is relatively poor, which limits their industrial applications. The joints shall be protected against corrosion. In this review, therefore, the current status and development of corrosion protection for FSW high-strength Al alloy joints are presented. Particular emphasis has been given to different protection methods: lowering heat input, post-weld heat treatment, surface modification and spray coatings. Finally, opportunities are identified for further research and development in corrosion protection of FSW high-strength Al alloy joints.     

搅拌摩擦焊研究进展及前景展望

搅拌摩擦焊(Friction Stir Welding，简称FSW)是针对焊接性差的铝合金开发的一种新型固相焊接工艺，由英国焊接研究所TWI(The Welding Institute)于1991年开发的专利技术。文中对搅拌摩擦焊工艺进行简单介绍并对研究现状做了比较详尽的总结，涉及搅拌摩擦焊机理即塑性流体运动情况及“洋葱”圆环的形成机理、适用母材、接头微观组织、力学性能、焊接工具、复合焊接工艺及搅拌摩擦焊应用领域，并展望FWS的发展前景。     

常规FSW与双轴肩FSW对铝合金接头组织和性能的影响

对采用常规FSW和双轴肩FSW所得到焊接接头性能进行试验研究,测试了两种焊接得到的焊接接头的抗拉强度、屈服强度和断后伸长率,并对接头的微观组织和断口形貌进行了观察和分析.结果表明,双轴肩FSW接头横截面形成了一组由内向外扩张“洋葱环”状的椭圆环;常规FSW焊核区与热力影响区之间组织发生明显变化;硬度的最低处为双轴肩FSW前进侧热力影响区,最高处为双轴肩FSW接头上表面焊核区;常规搅拌摩擦焊接头的综合力学性能最好,双轴肩次之;断口形貌分析表明,接头断裂模式均为韧性断裂,且常规FSW断口韧窝尺寸比双轴肩FSW接头韧窝小而深,表现出更好的塑性.     

Alternative friction stir welding technology for titanium–6Al–4V propellant tanks within the space industry

Friction stir welding (FSW) offers an appealing solid state joining alternative to traditional fusion welding techniques for titanium alloys because it reduces problems associated with high temperature processing. Propellant tanks are a critical component of every spacecraft and contain several weld seams and a prime candidate for this innovative technology. This paper reviews the current technological maturity of FSW relative to titanium alloys and considers the application with respect to a pressure vessel. FSW is currently in a period of significant investment by large engineering companies and international research institutions. The technology is advancing and evolving to cater for high temperature alloys. Stationary shoulder FSW and hybrid techniques show promising potential with respect to Ti–6Al–4V. The tool material and limited process window for this material are restrictive factors at present but can be overcome with future development.     

Friction stir welding industrialisation and research status

This paper intends to provide a perspective on the current development of the friction stir welding (FSW) technology. The industrialisation of the technology and related research were assessed by analysing patent and scientific publications databases. The literature reviews on FSW and related technologies were also collected and analysed. The work performed enabled to understand the main areas of industry/research where the FSW technology is being applied/explored and the geographical distribution of the main players in its implementation/research. The main FSW process variants, the materials already welded/processed using it, as well as the applications envisaged, were also analysed. The data collected shows that the FSW technology, originally developed for the joining of light alloys, became a research tool with interest in several fields of engineering and material science.     

搅拌摩擦焊技术的新起点——钢的焊接

搅拌摩擦焊技术已经成功实现了在铝合金结构中的工业化应用,但是在钛合金、钢等高熔点材料结构焊接中的研究仍在进行之中.文中对钢的搅拌摩擦焊技术难点进行了分析,并对C-Mn钢等典型钢结构材料的搅拌摩擦焊接头性能及组织进行了对比分析.结果表明,搅拌摩擦焊接头的细晶组织有助于提高钢结构的性能,具有一定的推广应用潜力.     

搅拌摩擦焊接过程的有限元模拟

对摩擦搅拌焊接工艺进行数值仿真，建立了搅拌摩擦焊接的二维数值计算模型，通过数值手段进行焊接参数研究。并研究了焊接工艺过程中焊件材料的流动情况以及在焊接过程中材料的应力和应变情况，且与已有结果进行比较。证实了所建立模型的正确性与可靠性。     

Study of hybrid welding repair process of friction stir welding grove defect

Abstract

Gas tungsten arc welding (GTAW) repair process and GTAW+FSW (friction stir welding) hybrid repair process are studied to remove the large size groove defect formed during FSW. The experimental results indicate that the groove defect can be removed by both the repair processes. The tensile strength of the GTAW repair joint is only 55% of that of the base metal. The tensile fracture occurs at the transition zone between the weld zone and the heat affected zone, and the fracture surface of the repair joint is characterised by clear brittleness. In contrast, the GTAW+FSW hybrid repair joint has a high tensile strength equivalent to 70% of that of the base metal. The tensile fracture occurs at the overlap thermomechanically affected zone between the two FSW nuggets, and the fracture feature of the hybrid repair joint is partially plastic and partially brittle.