文档介绍：材料成形原理-焊接原理第一部分焊接原理概述参考文献 1崔忠圻。金属学与热处理(铸造、焊接专业用)。***出版社 1989 年11月( 预备知识)。 2邹家生。材料连接原理与工艺。哈尔滨工业大学出版社, 2005 年2月( 重点参考) 3 Robert W, Messler Jr. Joining of Materials and Structures - Joining of Materials and Structures. Elsevier Butterworth – Heinemann 200 Wheeler Road, Burlington, MA 01803, USA. Linacre House, Jordan Hill, Oxford OX2 8DP, UK 4冯端,等。金属物理学(第一至第四卷)。科学出版设, 1987 年11月( 拓展提高) 材料成形原理-焊接原理 2第一章序论 连接与人类历史自石器时代至今天连接始终是人类制造业中最为重要的工艺过程之一材料成形原理-焊接原理( 序论)3 ?在通常意义上,连接是指将零、部件组合成一个(连续)整体的工艺过程,其所获得的整体具备各被连接零、部件没有的功能或复合功能。?连接所关心的核心问题是那些具备固有微观结构与宏观性能的被连接材料在连接过程中的演变,以及所构建连接结构的组织与力学特征。材料成形原理-焊接原理( 序论)4 连接的定义、目的及基本分类 连接的定义 Figure Welding, using a variety of fusion welding, predominantly consumable electrode processes, is used almost exclusively in ship construction. Roll product (., plate and beams), forgings, and castings are all welded to provide structural integrity, structural efficiency, and leak tightness. In most shipyards parts are joined to create large pre-fabricated modules, which are then joined to produce the ship, here the aircraft carrier Reagan. 大型结构材料成形原理-焊接原理( 序论)5 Figure Modern manufacturing often benefits when labor-intensive, quality-critical assembly is automated, as exemplified in the automobile industry by robotic welding. (Courtesy of DaimlerChrysler AG, Stuttgart, Germany, with permission.) 中型结构材料成形原理-焊接原理( 序论)6 Figure Welding is also used for microjoining for a variety of applications and industries. Here, very thin kovar sheets are spot-fillet welded by laser-beam welding to produce the minute lap joints shown. (Courtesy of Sandia National Laboratories, Albuquerque, NM, with permission.) 微小结构材料成形原理-焊接原理( 序论)7 Figure Typical large welded structures at a petrochemical plant. Note the bolted thick-section pipes, valves, and fittings at the left and right of the welded towers, as shown in a close-up in Figure . (Courtesy of Marathon Ashland Petroleum LLC, Findlay, OH, with permission