arc crater meaning in Hindi

Examples

1. When the welding current is added , on the one hand , the section of arc will more or less increase , so the fusion width will increase ; on the other hand , the depth of arc crater will increase
2. When the welding current is added , the quality of heat of the arc will increase , so both the volume of molten puddle and the depth of arc crater will all increase , and the weld depth will increase when the weld is cooling