铝合金焊接快速成形层间间隔时间分析  

Effects of time interval in rapid prototyping of Al-alloy based on welding

作　　者：申俊琦[1] 胡绳荪[1] 刘望兰[1] 韩敬华[1] 

机构地区：[1]天津大学材料科学与工程学院,天津300072

出　　处：《焊接学报》2008年第5期109-112,118,共5页Transactions of The China Welding Institution

摘　　要：在焊接成形过程中,热输入的大小对成形零件的质量和性能有很大的影响。将控制层间间隔时间作为控制热输入的一种方法,以交流钨极氩弧焊(AC-TIG)为焊接热源,对5356铝合金进行了多层多道焊的快速成形试验,通过改变层间间隔时间,分析了不同的层间间隔时间对成形零件表面质量和组织相尺寸的影响。结果表明,在相同的焊接参数条件下,变层间间隔时间所成形零件的表面质量和组织相情况均优于等时间间隔时间的成形零件。In the process of rapid prototyping based on welding, heat input has great effect on the quality and capability of workpieces.Time interval of deposited layers is used as a method of controlling the heat input in rapid prototyping process of 5356 Al-alloy based on AC gas tungsten arc welding(AC-GTAW).Under the condition of various time interval of deposited layers,the surface morphologies and microstructures of deposited layers are better than that in equal time interval of deposited layers.

关 键 词：焊接快速成形 交流钨极氩弧焊 铝合金 层间间隔时间 

分 类 号：TG444.74[金属学及工艺—焊接]