The invention belongs to the technical field of laser welding, in particular relates to an open-loop laser welding method, which is applied to coating metal welding and heterogeneous metal welding, including the following steps: S1: setting two pieces to be welded together, and determining the welding position of two pieces to be welded; S2: forming several welds through laser beam at the welding position of two pieces to be welded, each of which is the same. The annular beads are concentric and spaced each other. The annular beads are all open-loop beads. Because the welding area of the annular weld is a circle and that of the solid weld with the same area as that of the annular weld is a circle, the welding area of the annular weld is also significantly smaller than that of the original solid weld, and the oxidation reaction of the weld during the welding process can be confined to the annular weld and effectively suppressed. It can effectively control the blackening of the welded parts to be welded.
【技术实现步骤摘要】
开环激光焊接方法
本专利技术属于激光焊接
,尤其涉及一种开环激光焊接方法。
技术介绍
激光焊接作为一种高效精密的焊接手段,在汽车工业和航空工业等领域有着广泛的应用。激光焊接的原理是通过将高能量密度的激光聚焦在待焊接件上,以将待焊接件区域熔化,实现焊接。而在上述过程中,由于待焊接件在区域融化时会与空气中的氧气发生反应,这样会导致待焊接件的焊接部位发生黑化。现有技术中,为避免焊接部位黑化现象的发生,多在焊接过程中通入保护性气体以隔绝空气,避免待焊接件发生氧化,如此虽可避免待焊接件的焊接部位黑化现象的发生,但是也显著提高了激光焊接作业的作业成本,不利于激光焊接产品制造成本的控制。
技术实现思路
本专利技术的目的在于提供一种开环激光焊接方法,旨在解决现有技术中通入保护性气体导致激光焊接作业的成本显著提高的技术问题。为实现上述目的,本专利技术采用的技术方案是:一种开环激光焊接方法,应用于镀层金属焊接和异种金属焊接,包括以下步骤:S1:将两待焊接件相互贴合设置,并确定两所述待焊接件的焊接位置;S2:在两所述待焊接件的所述焊接位置处通过激光束形成有若干根焊道,各所述焊道均为环状焊道,各所述环状焊道均保持同心并相互间隔设置,各所述环状焊道均为开环焊道。进一步地,各所述开环焊道均为圆环状焊道。进一步地,各所述开环状焊道的起始端与终点端均间隔设置且间隔距离为0.07mm~0.10mm。进一步地,各所述开环状焊道的所述起始端与所述终点端的间隔距离均为0.084mm。进一步地,所述激光束的移动速度为700mm/s~1000mm/s。进一步地,所述激光束的移动速度为850mm/s ...
【技术保护点】
1.一种开环激光焊接方法,应用于镀层金属焊接和异种金属焊接,其特征在于:包括以下步骤:S1:将两待焊接件相互贴合设置,并确定两所述待焊接件的焊接位置;S2:在两所述待焊接件的所述焊接位置处通过激光束形成有若干根焊道,各所述焊道均为环状焊道,各所述环状焊道均保持同心并相互间隔设置,各所述环状焊道均为开环焊道。
【技术特征摘要】
1.一种开环激光焊接方法,应用于镀层金属焊接和异种金属焊接,其特征在于:包括以下步骤:S1:将两待焊接件相互贴合设置,并确定两所述待焊接件的焊接位置;S2:在两所述待焊接件的所述焊接位置处通过激光束形成有若干根焊道,各所述焊道均为环状焊道,各所述环状焊道均保持同心并相互间隔设置,各所述环状焊道均为开环焊道。2.根据权利要求1所述的开环激光焊接方法,其特征在于:各所述开环焊道均为圆环状焊道。3.根据权利要求1所述的开环激光焊接方法,其特征在于:各所述开环状焊道的起始端与终点端均间隔设置且间隔距离为0.07mm~0.10mm。4.根据权利要求3所述的开环激光焊接方法,其特征在于:各所述开环状焊道的所述起始端与所述终点端的间隔距离均为0.084mm。5.根据权利...
【专利技术属性】
技术研发人员:蒋丽君,张洋,刘坤,邓利明,曹海宣,
申请(专利权)人:深圳市艾雷激光科技有限公司,
类型:发明
国别省市:广东,44
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