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Plasma cutting fab work


Process of plasma cutting

Plasma cutting is a process that cuts through electrically conductive materials by means of an accelerated jet of hot plasma. Typical materials cut with a plasma torch include steelstainless steelaluminumbrass and copper, although other conductive metals may be cut as well. Plasma cutting is often used in fabrication shops, automotive repair and restoration, industrial construction, and salvage and scrapping operations. Due to the high speed and precision cuts combined with low cost, plasma cutting sees widespread use from large-scale industrial CNC applications down to small hobbyist shops.

How to cut with a Plasma cutting torch

The actual process of operating a hand-held air plasma cutter unit is relatively simple. In fact, the hardest part comes before ever striking an arc-selecting a machine that best matches your application and choosing the right accessories

The first questions to ask when selecting a plasma cutter relate to cutting capacity:

  • What thickness of metal will you routinely cut?
  • What is the maximum thickness you might cut?
  • How fast do you want to cut?

Like a welding machine, a plasma cutter’s amperage and voltage capacities determine its “size.” Note that the plasma process requires relatively high voltage and low amperage levels, the opposite of welding. Many people erroneously judge a plasma machine solely by amperage. While this is an important indicator, remember that total output power (in watts) equals amperage times voltage. Do the math to obtain a more accurate product comparison.

For instance, Miller Electric’s Spectrum 125C is 12-amp unit rated at 110 VDC (1,320 watts total). This provides a quality cut on 3/16-in. steel and will sever 1/4-in. steel. The cutting capacity of a particular “size” plasma machine varies greatly by manufacturer. The following table provides an indication of the maximum cutting performance you can expect from a Miller hand-held unit.


10 CNC Plasma Cutter Project Ideas

So you’re thinking about CNC Plasma Cutters (also called Plasma Tables) and you’re wondering what you might make with one.  Here’s a bunch of ideas to get the juices flowing.

Yard Art

CNC Plasma Cutter Art

Turn an old saw into artwork…

Signs

cnc plasma cutter sign

Business sign…

cnc plasma cut house number

House number with brushed and rusted finishes…

cnc plasma cut sign

A sign for your teenage daughter’s bedroom…

Outdoor Furniture

Plasma Cut Fire Pit

Nicely made fire pit…plasma cut wall sconce

Plasma cut patio wall sconce…

Indoor Decor

cnc plasma cutter fireplace grate

Fireplace screen…

plasma cut wine rack

Gates

Plasma cut farm gate

Nicely made gate…

CNC Plasma Cutter Garden Gate

Cute design for a garden gate…

 

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