Hypertherm XPR300 - Stainless Steel

Operation
6
XPR300 Instruction Manual 809480 221
Stainless steel
HyDefinition (HDi)
vented processes
The XPR300 cutting system offers HDi vented cutting for all processes that cut stainless
steel (up to170 A). HyDefinition vented processes produce high-quality cuts with minimal
dross and can be used with either N
2
, F5, or mixed-fuel gases.
Specifically, HyDefinition vented processes can produce:
• A sharp top edge of the cut
• A smooth, shiny, or gray cut edge
• Excellent cut-edge angularity
• Fast cut speed
HyDefinition vented
mixed-fuel gas
processes
OptiMix-equipped systems let operators use mixed-fuel gas processes for stainless steel
cutting.
The OptiMix gas connect console has a 3-gas mixer that mixes H
2
, Ar, and N
2
so that the
operator can tune the cut edge color and angle with a wide variety of gas mixtures. The
cutting system chooses an optimized combination of 3 gases or 2 gases (H
2
, Ar) based on
the thickness of the metal to be cut.
HyDefinition vented
water injection
processes
VWI processes use a low flow rate of water through the shield line (instead of shield gas).
A process that uses water as a shield fluid is sometimes known as a “wet” process.
Wet processes deliver an overall good cut quality with low operating cost and a decreased
heat-affected zone. Wet processes produce a slightly rougher edge than “dry” processes.
HyDefinition
non-vented
processes
The 300 A processes (N
2
/N
2
, mixed-fuel gas/N
2
, and N
2
/H
2
O) are non-vented and deliver
the following cutting options:
• Dark-colored cut edges with N
2
/N
2
.
• Yellow-orange cut edges with mixed-fuel gas/N
2
on metals with 15 mm – 25 mm
(0.59 in. – 1 in.) thicknesses.
• Dark, blue-hued cut edges with mixed-fuel gas/N
2
on metals with thicknesses that are
greater than 25 mm (1 in.).
• Gray cut edges with small heat-affected zone with N
2
/H
2
O.