車架上的魚鱗片是如何做出來的 ?

你們有想過鋁合金的魚鱗片是怎麼做出來的嗎 ?? 其實方法很多種 , 這段影片只是其中一種 , 但是焊道很美 , 欣賞一下



補上影片中的討論 , 重要的技術資料
"Use about 30 Amps per millimeter of aluminum material . The high current AC is needed to "crack up" the surface as the oxide at the surface has a higher melting temperature. You might even need additional power for the really thick stuff, I used 140 A today on a 4 mm piece. After you get a pool of melted material you can back off a bit on the pedal / lower the amps and - it is just like the clip: Move nozzle and dip the material in the little silver pool "