Plasma Cutters: Precision Cutting for Modern Industry​​

Plasma cutters are ideal for precisely cutting various alloys. These systems, available in different sizes (small/large, portable/stationary, manual/CNC), are crucial for building structures and equipment like:

• Cranes

• Airplanes

• Suspension bridges

• Buildings and skyscrapers

• Cars and trucks

• Medical equipment

​​How Plasma Cutting Works:​​

1. ​​Gas Ionization:​​ An inert gas is forced at high speed through a narrow channel and pressurized by a swirl ring.

2. ​​Arc Creation:​​ A negative electrode creates a circuit when the nozzle touches the workpiece, generating a plasma arc (spark).

3. ​​Plasma Formation:​​ This gas becomes plasma, reaching extreme temperatures (~16,600 - 25,000°C / ~25,000 - 45,000°F).

4. ​​Shielding Gas:​​ Shielding gas surrounds the plasma torch, controlling its direction and penetration into the workpiece.

​​Types & Features:​​

• ​​CNC Plasma Cutters (Preferred):​​ Computer-controlled systems store cut dimensions, perform calculations, and execute cuts automatically. This improves precision, reduces errors/human error, eliminates secondary processing, and saves time and money.

• ​​Plasma Gougers:​​ Differ from cutters primarily by torch design. Gouging torches use a wider, softer arc to removelarge volumes of metal, unlike cutting torches which produce a narrow, confined arc for clean kerfs with minimal dross.

​​Key Considerations:​​

• ​​Consumables:​​ Critical parts (nozzle, electrode, swirl ring) wear and require regular maintenance/replacement.

• ​​Heat Affected Zone (HAZ):​​ The cutting heat can slightly warp material properties, potentially affecting strength. However, HAZ is typically minimal.

• ​​Benefits:​​ Despite some disadvantages, plasma cutters deliver high-quality, complex cuts safely and efficiently, making them a leading precision cutting choice. Different cutter/torch types help mitigate drawbacks.