Tools/plasma/induction
Requirements for training
Groups of 5 or less
18+ only
Clothing :-
Preferably workshop overalls and safety boots but if not :-
Stout leather shoes that you don’t mind getting messed up, no trainers, no open-toed shoes
Jeans or similar heavy cotton trousers, must completely cover legs, no holes
Cotton shirt, long-sleeved preferable but not essential
All clothing is going to get dirty, dusty and possibly burn marks
For fire-safety reasons - NO SYNTHETIC FABRICS
If you have any metal you’d like to cut, or scrap to practice on, please bring it (Steel only, not stainless)
Training
Intro
Who I am
Why I’m teaching this
Who are you and what are your levels of experience?
Safety
Fire precautions
Clearing area of flammables
Getting fire extinguishers handy
Everyone knows how to use one?
Proper safety Clothing
Overalls (sparks, UV)
Boots (sparks, dropping things)
Gloves (sparks, hot metal parts)
Ear protection (not using and why not)
UV safety
Goggles/Mask (UV, flying sparks, grit, dust)
Dust safety
Dust mask (Dust, metal fume headaches)
Good ventilation (Heat, NOx, CO)
Why are we restricted to carbon steels? (Cr2O3, Al2O3, NiO, CuO etc.)
Is there interest in cutting other materials? (Will organize if wanted)
Electrical safety
Avoiding wet areas (but mention industrial water-damped cutting)
No Extension leads!
Basics
What is plasma, why does it cut
What can be cut
Inspecting compressor and cut-50
Fitting consumables (examine, check, what constitutes too much wear, show examples)
Connecting up the equipment (air cleanliness & water)
Torch safety (airflow/electrical)
Starting up
Compressor
Setting pressure (3-6 bar)
CUT-50
Setting current (10A+5A/mm)
Cutting
Basic how-to
Preparing material (consider contaminants, good ground contact, consider what’s underneath and on the underside)
Torch perpendicular and slow even movement
OK to brace on the material
How to recognise problems
Demo on thin sheet
Practice on thin sheet
Piercing
Guides (metal and wood, the differences)
Proper settings and how to choose them
Cutting on thicker materials
Cutting speed/spark angle (15-20 deg)
Flick-finishing
Piercing
Descaling
Demo & Practice
Other topics
Piercing into enclosed spaces