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