Holes at the end of the weld

[steventoon]

Hi,

I've a Clarke 151TE welder and I am practising butt welding. My welds and penetration appear fine (to me!) until I get right near the end of the sheet and I find I'm blowing a hole. I'm using 2mm steel with an argon/co2 bottle.

Does anyone have any advice how to prevent this? I have a feeling that I may be slowing down when coming to the end but any advice would be appreciated.

Many thanks

Steve

 

[shenion]

Move fast at end.

Even better weld from the edge in. If elding from edge to edge, weld from both ends to the center.

I made up a "spoon" from a flattened piece of copper pipe stuuck on a wood dowel. Hold that under the metal at the end.

 

[steventoon]

Thanks for the reply, I'll give that a go