Fabricators and manufacturers routinely mark metal to indicate bend or score lines and add precise technical information to parts such as part numbers and barcodes. Typically, this work is performed manually using a hammer and punch, powder or ink, soapstone, handheld engraving machines, or as an integral process step on a mechanized plasma or oxyfuel cutting table.

Fabricators who choose to mark with plasma – whether using a handheld torch or mechanized cutting table, have an advantage, as marking with plasma is more permanent than soapstone or ink. Marking done during the CNC cutting process is more accurate and legible, with depth precisely controlled to determine whether marks remain visible or not after coatings are applied.

Plasma marking can also be used on wet or oily plate, and eliminates the clogging problems and humidity concerns associated with powder marking. The versatility of the portable Powermax45® XP plasma system makes it an ideal tool for both handheld and mechanized marking applications, and for making temporary or permanent marks on metal surfaces such as mild steel, stainless steel, or aluminum.

When fully mechanized systems, such as the HPR® or XPR™, are equipped with both a cutting head and marking hardware, fabricators can consolidate cutting and marking into a single-pass operation.

Typical marking applications include:

  • Scoring to indicate cut or weld lines
  • Product or part identification
  • Creating position references for robotic systems
  • Creating dimples to start drilling holes

 

Light marking
  Air Argon
Width 2.79 mm (0.11 inch) 1.22 mm (0.048 inch)
Depth Less than 0.02 mm (0.001 inch) Less than 0.02 mm (0.001 inch)
Travel speed 2.5 m/min (100 in/min) 3.2 m/min (125 in/min)

 

Heavy marking / Scoring
  Air Argon
Width 2.79 mm (0.11 inch) 1.22 mm (0.048 inch)
Depth 0.09 mm (0.0035 inch) Less than 0.02 mm (0.001 inch)
Travel speed 2.5 m/min (100 in/min) 3.2 m/min (125 in/min)

(Calculations based on Powermax45 XP, used at 10 to 25 amps)

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