Archive for January, 2015

Hi all.  Last time I wrote about the basics of what happens inside a standard plasma torch and how fluid dynamics is key in the cutting process.  I’d like to continue my last post by discussing high definition plasma cutting, in particular about the fluid dynamics inside the hi-def torch.

All of the major plasma power supply/torch manufacturers have what the industry terms ‘high-definition’ product lines.  Technically what separates standard plasma cutting and high definition plasma cutting are two things: constriction of the arc and more precise plasma gas flow.  This constricted arc leaves a more square edge with less dross, and enables higher cut speeds.  The kerf size with a high definition torch is quite a bit smaller also due to the smaller arc and more precise flows. Read the rest of this entry »

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