bad weld

基本解释

After being heated the alloy's plasticity becomes bad, easy brittleness, not to be easy to weld.
被加热后，合金的塑性变差，易脆性大，不容易焊接。
wiremesh-asia.com
The welding deformation not only have bad effect on the good appearance, but also can result in all kinds of weld cracks.
焊接变形不但影响美观，还可能会引发各种焊接裂纹。
Aluminium alloy's weld adapability is relatively bad, and easy to appear crack and air vent etc. in welding. The reasons are theoretically analyzed.
铝合金的可焊接性较差，熔焊时易产生裂纹和气孔等缺陷，理论分析了缺陷产生的原因。