1) CO 2 laser welding
CO2激光焊
2) CO2 laser welding
CO2激光焊接
3) CO_2 laser welding
CO2激光焊接
1.
4 m/min) were used to joint the heat-(resistant) aluminum alloy AA8009 plate with 1 mm in thickness by CO_2 laser welding.
4 m/min),对板厚为1 mm的耐热铝合金AA8009进行CO2激光焊接。
2.
The influences of the filler metal powder on the intensity threshold, weld formation and process stability have been studied during high power CO_2 laser welding of aluminum alloy through the comparison between welding with and without metal powder.
通过采用和不采用填充合金粉末的比较试验,研究了填充合金粉末对铝合金高功率CO2激光焊接功率阈值、焊缝成形和焊接过程稳定性的影响。
4) processing parameter of CO 2 laser beam welding
CO2激光焊接工艺参数
5) CO2 laser
CO2激光器
1.
A high frequency modulated high power CO2 laser is used as the excitation source to heat up the sensor under test.
用对CO2激光器输出10。
2.
The analysis results show that the rectangular waveguide CO2 laser can manifest a far field intensity distribution of coherent spatial suppressed single peak,which is similar to that from a phase coupled waveguide array laser, and its far field intensity distribution changes periodically with the increase of the resonator length.
分析表明,矩形波导CO2激光器在一定条件下可以获得类似阵列波导的远场同相相干压窄单峰输出,输出远场相干强度分布随腔长变化呈现周期性地交替变化等特征。
3.
In order to get the high output power,a RF excited diffusively cooled all-metal slab waveguide CO2 laser was reported,in which gas discharge region was constructed by two aluminum side walls and aluminum electrodes.
为了获得较高的激光输出功率,介绍了射频激励扩散冷却全金属板条波导CO2激光器,放电区域由左右两个铝合金壁和上下两个铝合金电极构成,放电区域高2 mm,宽20 mm,长386 mm,工作气体混合比CO2:N2:He:Xe=1:1:3:0。
6) CO_2 laser
CO2激光
1.
The amorphous Fe_(78)Si_9B_(13) alloy was partially crystallized when it was irradiated by CO_2 laser beam with 20mm spot diameter for 20 sec at 250W and 300W as the laser power.
在CO2激光散光斑直径20mm的情况下,分别选择在不同功率静置的条件下辐照Fe78Si9B13非晶带实现部分晶化·用穆斯堡尔谱、X射线衍射和扫描电镜对原始非晶样品(Fe78Si9B13)和晶化后样品的微观结构进行了分析·结果表明:在CO2激光散光斑直径一定的条件下(20mm),分别选择激光功率250W和300W辐照非晶Fe78Si9B13样品20s,非晶样品可以实现约6%和9%的晶化·激光辐照非晶Fe78Si9B13合金的晶化相为αFe(Si),样品发生了织构现象,晶粒沿(200)面大量析出·激光晶化相产生在非晶带表面晶化层中·在其他条件一定的情况下,样品的晶化量随着激光功率的增加而增加
2.
5B_9 amorphous ribbon samples were exposed to CO_2 laser irradiation with various powers (150 W,200 W,250 W,300 W) and the same scanning speed (20 mm/s) in order to produce nanocrystalline phase on the surface of amorphous Fe_ 73.
在相同激光扫描速度(20mm/s)和不同激光功率(150W,200W,250W,300W)工艺条件下,利用CO2激光对铁磁Fe73。
3.
The physical and chemical processes about CO_2 laser-induced deposition of metal Ag from aqueous solution were studied.
利用低功率CO2激光,从水性溶液中诱导沉积金属Ag,存在物理化学过程。
补充资料：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，产生热能，熔化工件(见图)。激光束是具有单一频率的相干光束，在发射中不产生发散，可用透镜聚缩为一定大小的焦点（直径为 0.076～0.8毫米）。小焦点激光束可用于焊接、切割和打孔；大焦点激光束可用于材料表面热处理。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。如采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、钕玻璃等。固体激光器输出能量小,约为1～50焦耳,产生脉冲激光,其加热脉冲持续时间极短(小于10毫秒)，因而焊点可小到几十至几百微米，焊接精度高,适于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，固体激光器广泛用于焊接微型、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氩离子气等,功率大(15～25000瓦)，可产生连续激光,能进行连续焊接,可焊0.12～12毫米厚的低合金钢、不锈钢、镍、钛、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）
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条