Oxygen/ Fuel Cutting and Welding

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Oxygen/ Fuel Cutting and Welding

• By Ryan Saucier

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Oxygen/ Fuel cutting torches can be used to cut,
pierce and gouge mild steel.
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Oxygen/Fuel Cutting Guidelines
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Oxygen/ Fuel Cutting

• Welding and cutting operations use fire or
  combustion as a basic tool.  The process is very
  useful when properly controlled.
• However, it can be extremely destructive if not
  performed correctly in the proper environment.
• The work area must have a fireproof floor.
• Work benches or tables used during welding or
  cutting operations must have fireproof tops.

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Oxygen/ Fuel Cutting

• Use heat resistant shields or other approved
  material to protect nearby walls or unprotected
  flooring from sparks and hot metal.
• Keep an approved fire extinguisher of the proper
  size and type in the work area.  Inspect it
  regularly to ensure that it is in proper working
  order.  Know how to use the fire extinguisher.
• Move combustible materials away from the work
  site.  If you can not move them, protect them
  with fireproof covers.

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Oxygen/Fuel Cutting

• WARNING!
• Never perform welding or cutting operations on a
  container that has held toxic, combustible or
  flammable liquids or vapors. 
• Never perform welding or cutting operations in an
  area containing combustible vapors, flammable
  liquids, or explosive dust.

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Oxygen/Fuel Cutting

• Good housekeeping practices improve the safety of
  any work area.  They are essential to the safety
  of welding and cutting operations due to the
  potential hazards involved.
• Keep all welding and cutting apparatus clean and
  free of grease, oil, and other flammable
  substances.

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Oxygen/Fuel Cutting

• Warning!
• Never allow oxygen to contact grease, oil, or
  other flammable substances.  Although oxygen by
  itself will not burn, these substances become
  highly explosive. 
• They can ignite and burn violently in the
  presence of oxygen.

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Oxygen/Fuel Cutting

• Ventilate welding and cutting work areas
  adequately. 
• Maintain sufficient air flow to prevent
  accumulation of explosive or toxic concentrations
  of gases. 
• Welding or cutting operations using certain
  combinations of metals, coatings, and gases
  generate toxic fumes.  Use respiratory protection
  equipment in these circumstances.

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Oxygen/Fuel Cutting

• Gas flames produce infrared radiation which may
  have a harmful effect on the skin and especially
  on the eyes. 
• Select goggles or a mask with tempered lenses
  shaded 5 or darker to protect your eyes from
  injury and provide good visibility of the work. 

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Oxygen/Fuel Cutting

• Wear flame resistant clothing, protective gloves,
  sleeves, aprons and safety shoes to protect skin
  and clothing from sparks and slag. 
• Keep collars, sleeves and pockets buttoned. 
• DO NOT roll up sleeves or cuff pants.

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Cutting Torch Parts
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Typical Portable Oxygen/ Fuel Cutting Rig
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Acetylene Regulator
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Oxygen Regulator
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Oxygen/ Fuel Hose
Green Oxygen Red Fuel
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Typical Cutting Torch
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Parts of a Cutting Torch
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Spark Lighter
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Cutting Tip
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Welding Tip
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Heating Tip
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Flashback Arrestors
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Reverse Flow Check Valves
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Cutting Torch Manufacturers
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Oxygen/ Acetylene Cutting Torch Safety Hazards
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Working Pressure Gauge Failure
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Cracked Acetylene Hose
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Oxygen and Acetylene Cylinders Stored Improperly
Under Stairwell
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Oxygen/ Acetylene Cutting Torch Stored on Unsafe
Cart
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Oxygen/ Acetylene Cutting Torch Stored in
Flammable Liquids Cabinet
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Oxygen/ Acetylene Safety

1. This process can KILL you and others. Be sure to
   follow all safety rules.
2. Be sure to completely shut down the cutting torch
   when the job is completed.
3. Keep all oils and grease away from the
   regulators. When oxygen is compressed with a
   petrochemical, it becomes highly reactive and can
   explode. Imagine a 500lb bomb exploding in front
   of you. Will there be any pieces to pick up?

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Remember Safety is Job 1