What am I doing wrong

**Karl Robbers** · 3rd January 2013, 10:25 AM

Originally Posted by desbromilow

Silly question - but do you know if it's actually steel and not one of the bissloy steels? At work the bis has a similar type of "scale" and I've been told it needs to be cut with plasma - not oxy

The fact your guy could centre punch it probably measn it's steell - but just to be sure....

Maybe some bissaloy won't oxy cut, but I haven't come accross it yet. I actually find that bis cuts really nicely as a general rule as long as it is clean.

**rascal** · 3rd January 2013, 10:53 PM

Don't know what it is but it drills,files and grinds easily.
John

**Grahame Collins** · 4th January 2013, 08:17 PM

Originally Posted by Master Splinter

Generally, popping means your gas flow is too low. Open the torch valves more (but not till the flame detaches from the tip!), and if this makes the cut messier, switch to a smaller cutting tip.

Pic 003 suggests that you need more oxygen as it's not that clean a cut...but could also be too slow a cutting speed.

And I thought a no. 15 tip was for thick plate????

Given that the plate is pretty cruddy a #15 has the extra heat value to get up to cut speed quickly.In this case having too much wouldn't hurt.Your right in thinking #12 for 25 but that clean plate. It will allow a hotter faster cut.

Grahame

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