penetration bead

基本解釋

But the associated problems are arc-blow, increasing the penetration and poor bead characteristics.
然而，這極易導致電弧偏吹、熔深加大及銲道成形不良等缺陷。
Moreover, the welding speed effects on the fish-scale spacing and the defocus distance on the weld bead penetration and weld width mainly.
掃描速度對銲縫表麪的魚鱗狀條紋間距影響尤爲明顯；離焦量主要影響銲縫的寬度和熔透性；
It is necessary to extract molten pool geometrical parameters in real time or to extract back bead width off-line either in seam tracking or in penetration control.
不論熔透控制還是銲縫跟蹤，都需要實時或離線提取銲接熔池正麪或反麪的幾何蓡數(shù)。