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PLASMA
ARC
CUTTING
1. MOHAMMAD ZULHAFIZZAN
2. MUHAMMAD RAIMI
3. MOHAMAD KADAPPI
4. MUHAMMAD NUR IQMAR
5. HJH SITI NORZAKIAH
6. NOR HASMIRA
WORKSHOP THEORY
AND ENGINEERING
MATERIALS
PLASMA ARC CUTTING
• Plasma Arc Cutting (PAC) is defined as "an arc
cutting process that severs metal by melting a
localized area with a constricted electric arc
which removes the molten material with a high
velocity jet of hot, ionized gas issuing from the
constricting orifice." Plasma arcs operate
typically at temperature of 18.000˚ - 25.000˚F
(10.000˚ - 14.000˚C)
APPLICATION
 The first commercial application of plasma arc cutting was the
mechanized cutting of manway holes on aluminum railroad tank
cars. The process has since been used on a wide variety of
aluminum applications.
 Manual plasma arc cutting is widely used in automobile body repair
for cutting high-strength low alloy steel. Instant starting and high
travel speeds reduce heat input to the HSLA steel and help maintain
its strength.
 The chief application of mechanized plasma arc cutting to carbon
steel is for thicknesses up to 1/2 in. (13 mm).
`
 The higher cost of plasma arc equipment compared to OFC
equipment can be justified by its higher cutting speeds.
 The plasma process has been used for stack cutting of carbon steel,
stainless steel, and aluminum.
 The plates to be stack cut should preferably be clamped together,
but PAC can tolerate wider gaps between plates than OFC.
GASES USED
Nitrogen
Oxygen
Argon-Hydrogen Mixtures
Acetylene
Propane
Methylacetylene-propadiene (MAPP)
Propylene
Natural Gas
(Methane CH4)
GASES USED
Nitrogen
Oxygen
Argon-Hydrogen Mixtures
Acetylene
Propane
Methylacetylene-propadiene (MAPP)
Propylene
Natural Gas
(Methane CH4)

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Class exercise group discussion

  • 1. PLASMA ARC CUTTING 1. MOHAMMAD ZULHAFIZZAN 2. MUHAMMAD RAIMI 3. MOHAMAD KADAPPI 4. MUHAMMAD NUR IQMAR 5. HJH SITI NORZAKIAH 6. NOR HASMIRA WORKSHOP THEORY AND ENGINEERING MATERIALS
  • 2. PLASMA ARC CUTTING • Plasma Arc Cutting (PAC) is defined as "an arc cutting process that severs metal by melting a localized area with a constricted electric arc which removes the molten material with a high velocity jet of hot, ionized gas issuing from the constricting orifice." Plasma arcs operate typically at temperature of 18.000˚ - 25.000˚F (10.000˚ - 14.000˚C)
  • 3. APPLICATION  The first commercial application of plasma arc cutting was the mechanized cutting of manway holes on aluminum railroad tank cars. The process has since been used on a wide variety of aluminum applications.  Manual plasma arc cutting is widely used in automobile body repair for cutting high-strength low alloy steel. Instant starting and high travel speeds reduce heat input to the HSLA steel and help maintain its strength.  The chief application of mechanized plasma arc cutting to carbon steel is for thicknesses up to 1/2 in. (13 mm).
  • 4. `  The higher cost of plasma arc equipment compared to OFC equipment can be justified by its higher cutting speeds.  The plasma process has been used for stack cutting of carbon steel, stainless steel, and aluminum.  The plates to be stack cut should preferably be clamped together, but PAC can tolerate wider gaps between plates than OFC.