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745 Welding, Cutting, and Brazing Safety
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Oxy-Fuel Welding Process Hazards

Oxy-Fuel Gas welding is commonly used in general maintenance work, brazing, and soldering because it is versatile, portable, and cost-effective.

Welding Fails

Unlike other welding methods that require heavy equipment or specialized power sources, gas welding can be easily used in various settings, making it ideal for repair and fabrication tasks.

  • Fire and Explosion: Gas welding uses highly flammable gases, which can leak from hoses, regulators, or cylinders. If these gases ignite, they can cause fires or even explosions. Acetylene, in particular, is extremely volatile and must be handled with caution. Sparks from welding can also ignite nearby flammable materials, making fire safety a top priority.
  • Harmful Fumes: When metals are heated, they release fumes containing toxic elements like lead, zinc, and copper. Inhaling these fumes can cause metal fume fever, a condition that leads to flu-like symptoms. Long-term exposure may also lead to serious respiratory diseases, including lung damage.
  • Eye and Skin Injuries: The intense flame from gas welding emits infrared radiation, which can cause burns on the skin and damage the eyes. Without proper protection, welders risk developing welder’s flash (also known as arc eye), a painful condition caused by excessive exposure to bright light.
  • Gas Cylinder Hazards: Gas cylinders are highly pressurized and can explode if they are dropped, overheated, or improperly handled. A damaged cylinder can turn into a dangerous projectile, posing a severe risk to workers.

Knowledge Check Choose the best answer for the question.

2-2. Why is gas welding commonly used in general maintenance work, brazing, and soldering?