而在光丝间距和离焦量变化过程中，激光束对复合热源平板堆焊焊缝表面成形的影响很小。
The influence of Nd:YAG laser on hybrid weld appearance is light in variation of laser-arc distance and defocusing distance.
采用不同配比的保护气体，在水冷铜模中堆焊焊缝金属，获得不同扩散氢含量的熔敷焊缝试棒。
Deposit metal samples are prepared by GMAW shielded with different gases in copper mould with water cooling.
研究了用于快速成形的TIG熔敷堆焊工艺中各参数与焊缝宽度的关系。
The paper researches the relation of parameters and weld width of TIG deposit surfacing used in rapid prototyping.
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