兵器材料科学与工程
兵器材料科學與工程
병기재료과학여공정
Ordnance Material Science and Engineering
2013年
5期
83-86
,共4页
李亚宁%郭晓琴%宋东福%徐波
李亞寧%郭曉琴%宋東福%徐波
리아저%곽효금%송동복%서파
铝合金%TIG焊%残余变形%数值分析
鋁閤金%TIG銲%殘餘變形%數值分析
려합금%TIG한%잔여변형%수치분석
aluminum alloy%TIG welding%residual deformation%numerical analysis
基于焊接专用数值分析软件模拟电动自行车铝合金车架前管和连接管的钨极惰性气体保护焊接(GTAW)过程,分析了焊接变形的形成和残余变形分布。结果表明:在固定约束条件下,焊接过程的局部不均匀热输入是引起焊接变形的主要原因;在焊接和冷却过程中,焊接变形一直增大;室温状态时,最大残余变形量为0.530573 mm,主要位于前管左端位置。
基于銲接專用數值分析軟件模擬電動自行車鋁閤金車架前管和連接管的鎢極惰性氣體保護銲接(GTAW)過程,分析瞭銲接變形的形成和殘餘變形分佈。結果錶明:在固定約束條件下,銲接過程的跼部不均勻熱輸入是引起銲接變形的主要原因;在銲接和冷卻過程中,銲接變形一直增大;室溫狀態時,最大殘餘變形量為0.530573 mm,主要位于前管左耑位置。
기우한접전용수치분석연건모의전동자행차려합금차가전관화련접관적오겁타성기체보호한접(GTAW)과정,분석료한접변형적형성화잔여변형분포。결과표명:재고정약속조건하,한접과정적국부불균균열수입시인기한접변형적주요원인;재한접화냉각과정중,한접변형일직증대;실온상태시,최대잔여변형량위0.530573 mm,주요위우전관좌단위치。
The welding process of GTAW welded aluminum alloy electric bicycle frame was numerically simulated by using special welding finite element analysis software. Furthermore,the formation and distribution of welding residual deformation were also analyzed. The results show that under the fixed constraint condition,the partially uneven heat input in welding is the main cause of welding deformation. In soldering and cooling process,welding distortion is always increasing. In room-temperature state,the maximum residual deformation amount is 0.530 573 mm,mainly located in the left end position of the front tube.