Mechromencer3000
New Member
- Messages
- 7
- Location
- Uk
Hi,
I have a slight problem. I have been welding a year now and mostly without a hitch. However I am building a unit that is made from mild steel box section 30x30mm x 2.5mm Wall using argon gas mix and 0.8 wire gas flow set at 15cfm.
The welder is also setup to weld 2.5 to 3mm thicknesses. The problem is the welds are not sticking to the metal when I tack weld it looks ok at 1st but it cracks then separates from the metal I cleaned steel to bright metal and washed it with white spirit as I don't have acetone yet but got some on order. I have tried everything and these naughty welds will not stay put. Can anyone help? Oh and keeping material connected using corner magnet
I have a slight problem. I have been welding a year now and mostly without a hitch. However I am building a unit that is made from mild steel box section 30x30mm x 2.5mm Wall using argon gas mix and 0.8 wire gas flow set at 15cfm.
The welder is also setup to weld 2.5 to 3mm thicknesses. The problem is the welds are not sticking to the metal when I tack weld it looks ok at 1st but it cracks then separates from the metal I cleaned steel to bright metal and washed it with white spirit as I don't have acetone yet but got some on order. I have tried everything and these naughty welds will not stay put. Can anyone help? Oh and keeping material connected using corner magnet