A fuzzy multicriteria modelling method of defining a structural parameter for representing the grade of weldingdefect damage is presented.
提出了根据模糊综合评判、定义结构参数用以表示焊接缺陷损伤程度的方法。
2
Special glue is used on the surface of specimen , forming weldingdefect, which has little influence on microstructure and mechanical properties of joint.
待焊表面涂抹专用密封胶后，可形成结合线伸入缺陷，但对接头组织和力学性能影响不大。
3
The lead free high temperature solder has the advantages of higher melting point, good mechanical property, less weldingdefect and high welding reliability.