设计并加工了孔类和槽类模拟缺陷及实际焊接试件。
Hole-type and trough-type simulation of defects and the actual welding specimens are Designed and processed.
在焊接试件中有显著的裂纹闭合现象，其原因是焊接残余应力的作用。
There is significant closure in welded specimen due to the effect of welding residual stress.
在数控真空钎焊炉中进行钎焊试验，由于施加压力的不同，得出钎缝厚度不同的焊接试件。
The brazing experiment is finished in vacuum furnace, the brazed joints with different filler metal thickness are obtained by different pressure on them.
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