薄板卷筒焊接及减薄旋压整形工艺探讨

Discussion on Welding and Thinning Spinning Shaping Process of Thin Plate Drum

涉及管道及管道设备中非标薄壁管件,采用薄板卷筒焊接代替模具冷拔管。先将薄板卷筒焊接,再通过设计工艺装备,运用减薄旋压整形技术,实现管的加工成形。加工后尺寸合格、探伤合格,加工工艺满足设计需求及使用需求。通过板材卷筒焊接后在普通机床上进行减薄旋压,最终通过RT无损检验合格、表面光整、尺寸精确、圆柱度高的薄壁管件。

To involve non-standard thin-walled pipe fittings in pipelines and pipeline equipment,using thin plate drum welding instead of mold cold drawn pipes.First,weld the thin plate drum,and then use the thinning and spinning shaping technology through the design of process equipment to achieve the processing and forming of the pipe.The dimensions after processing are qualified,the flaw detection is qualified,and the processing technology meets the design and usage requirements.Thin walled pipe fittings with qualified RT non-destructive testing,smooth surface,accurate dimensions,and high cylindricity are produced by thinning and spinning on ordinary machine tools after welding the plate roll.