Brad93
Member
- Messages
- 17,573
- Location
- Essex, United Kingdom
Now I’m no flux core welder. But I’ve been working with another member on a flux core problem that has come to light with two different manufacturers.
One bohler. One ESAB.
And I’m sort of lost for things to try.
The material is 10mm thick 50mm wide flat bar 304L stainless steel. Squared off edge. Fillet weld. All ground to shiny with a grinding stone.
The wire I’m using is ESAB Shield-Bright 316L X-Tra. 1.2mm diameter. Run at 28V 235-245A (250A is the current limit for this wire).
It’s a wire intended for down hand (flat) use only. We started with the positional wire but it was worse as you’d expect.
I’m running it on M21 ArC-20 (80/20) As spec’d by the manufacturer.
I’m getting only 1 or 1.5mm of root penetration. Looks like plenty of sidewall fusion.
Now is this normal? Is it acceptable? I’ve tried different drag angles, less voltage (idea being the wire will punch in more but I loose smooth transition/fusion at the toes), faster travel speed.
The only thing I haven’t tried is automating it to achieve a faster travel speed.
I will try and get some macros but etching solutions for austentic stainless seems to be nasty stuff and i would have to order some in.
I think this is one @TechnicAl might be able to help with.
I’m using an old old batch of shield-bright so I’m waiting for a new spool to come in. Doubt this will make a difference but we will see.
One bohler. One ESAB.
And I’m sort of lost for things to try.
The material is 10mm thick 50mm wide flat bar 304L stainless steel. Squared off edge. Fillet weld. All ground to shiny with a grinding stone.
The wire I’m using is ESAB Shield-Bright 316L X-Tra. 1.2mm diameter. Run at 28V 235-245A (250A is the current limit for this wire).
It’s a wire intended for down hand (flat) use only. We started with the positional wire but it was worse as you’d expect.
I’m running it on M21 ArC-20 (80/20) As spec’d by the manufacturer.
I’m getting only 1 or 1.5mm of root penetration. Looks like plenty of sidewall fusion.
Now is this normal? Is it acceptable? I’ve tried different drag angles, less voltage (idea being the wire will punch in more but I loose smooth transition/fusion at the toes), faster travel speed.
The only thing I haven’t tried is automating it to achieve a faster travel speed.
I will try and get some macros but etching solutions for austentic stainless seems to be nasty stuff and i would have to order some in.
I think this is one @TechnicAl might be able to help with.
I’m using an old old batch of shield-bright so I’m waiting for a new spool to come in. Doubt this will make a difference but we will see.