咬边

zài hàn jiē sù dù hé rè shū rù dī yú yī dìng zhí shí bù huì fā shēng yǎo biān

在焊接速度和热输入低于一定值时，不会发生咬边。

When the welding velocity and welding power are limited below a certain value, the undercut will not appear.