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1)  lap laser welding
激光搭接焊
1.
The partial penetration lap laser welding is a solution for the disadvantages of resistant spot welding stainless steel railway vehicles such as poor surface quality and poor airtight.
针对不锈钢车体电阻点焊外观质量较差和密封性不良等问题,研究采用非熔透型激光搭接焊工艺进行不锈钢车体焊接,分析了激光焊接工艺参数(激光功率P、焊接速度v、离焦量F等)对搭接焊熔深和抗剪强度的影响规律,得出合理的激光搭接焊工艺参数为:P=2。
2)  Laser welding
激光焊接
1.
Porosity prevention of 1420 Al-Li alloy for laser welding;
1420铝锂合金激光焊接气孔抑制技术
2.
State-of-arts of visual sensing technology to monitor laser welding process;
激光焊接过程视觉传感技术的发展现状
3.
Study on the twin-focus technique in laser welding;
激光焊接中的双焦点技术
3)  laser weld
激光焊接
1.
The mechanical properties,microstructure and micro-hardness of laser welded joint were researched.
对抗拉强度600 MPa级的低碳相变诱发塑性钢(TRIP钢)进行了拉伸、成形、高速冲击拉伸和激光焊接试验。
2.
During the laser welding stainless steel 304 with deep penetration,it reasearches the relationship between laser tchnique and seam shape based on the method of secondary general rotary regression design.
在304不锈钢的激光深熔焊中,通过工艺试验,研究了激光焊接工艺参数与焊缝形状参数之间的关系。
3.
This paper introduces the current status and several important points of the development activities at the Vehicle Structure Technology Division,RTRI,such as evaluation of strength of laser weld in car body structure,double action rubber draft gear with damping devices,researches on the suppression of flexural vibration of car body,studies to suppress vertical vibration o.
文章针对不锈钢制车体激光焊接区的强度评价法、复动式车钩缓冲器、减轻车体挠曲振动方法、带轴减振器的车体减振系统以及不锈钢车体的碰撞安全性等5个专题,介绍了车辆结构技术研究部的研究成果,阐述了技术发展动向。
4)  laser beam welding
激光焊接
1.
Microstructure and properties of joints of wrought magnesium alloy AM60 plates welded by laser beam welding;
AM60变形镁合金薄板激光焊接接头的组织与性能
2.
Process instability in laser beam welding of 5083 aluminium alloy for shipbuilding;
5083船用铝合金激光焊接不稳定性研究
3.
Study on the weldability of the quenched and tempered 30CrMnSiA with laser beam welding;
30CrMnSiA调质钢的激光焊接性研究
5)  overlapping laser transformation hardening
搭接激光淬火
6)  laser overlap cladding
激光搭接熔覆
1.
Microstructure of nickel based nanometer WC/Co composite coating prepared by laser overlap cladding;
钢表面激光搭接熔覆镍基纳米WC/Co复合涂层的显微组织
补充资料:焊接:激光焊
    用激光束作为热源的焊接方法。焊接时﹐将激光器发射的高功率密度(108~1012 瓦/厘米2 )的激光束聚缩成聚焦光束﹐用以轰击工件表面﹐產生热能﹐熔化工件(见图 激光焊示意图 )。激光束是具有单一频率的相干光束﹐在发射中不產生发散﹐可用透镜聚缩为一定大小的焦点(直径为 0.076~0.8毫米)。小焦点激光束可用於焊接﹑切割和打孔﹔大焦点激光束可用於材料表面热处理。激光束可利用反射镜任意变换方向﹐因而能焊接一般焊接方法无法接近的工件部位。如採用光导纤维引导激光束﹐则更能增加焊接的灵活性。激光器分固体激光器和气体激光器。固体激光器所用材料为红宝石﹑釹玻璃等。固体激光器输出能量小﹐约为1~50焦耳﹐產生脉衝激光﹐其加热脉衝持续时间极短(小於10毫秒)﹐因而焊点可小到几十至几百微米﹐焊接精度高﹐适於0.5毫米以下厚度的金属箔片的点焊﹑连续点焊或直径0.6毫米以下的金属丝的对接焊﹐固体激光器广泛用於焊接微型﹑精密﹑排列密集﹑对受热敏感的电子元件和仪器部件。气体激光器所用材料为二氧化碳或氬离子气等﹐功率大(15~25000瓦)﹐可產生连续激光﹐能进行连续焊接﹐可焊0.12~12毫米厚的低合金钢﹑不锈钢﹑镍﹑鈦﹑铝等金属及其合金。小功率二氧化碳激光器还可焊接石英﹑陶瓷﹑玻璃和塑料等非金属材料。激光焊件质量高﹐有时超过电子束焊焊件的质量。激光焊机﹐特别是大功率激光焊机﹐成本高﹐效率甚低﹐一般只达5~10%﹐最佳为20%﹐穿透能力也不及电子束。但用激光束可在空气中或保护气体中焊接﹐比电子束焊方便。(见彩图 激光焊机 )
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