Pin Hole ( preforation

[sweens]

Hi Guys,
I am getting a pinhole at the end of a weld. I have checked the gas and the weld angle etc and all seem correct.  I have tried modifying the crater current and the timer on the crater settings but with limited success. The pin hole is always in the same position ( at the end of the weld right about where the crater is formed. I am welding 1.5mm material and have a Tawers welding plant  on a TA-1900 Panasonic robotic welding arm.

Thanks in advance

Sweens

[blizzard]

You need to change your arc end sequence. (lower the amps and volts) If that don't work changing the angle of your torch would do the trick.

[sweens]

Thanks  that work a treat.