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Safety. Shop. Tools. Welding. Safety Precaution. Before starting actual arc welding the student should be fully aware of the dangers involved. The high temperature arc and hot metal can cause severe burns . In addition the electric arc itself provides an additional safety hazard.

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  1. Safety Shop Tools Welding

  2. Safety Precaution • Before starting actual arc welding the student should be fully aware of the dangers involved. The high temperature arc and hot metal can cause severe burns. In addition the electric arc itself provides an additional safety hazard.

  3. The electric arc emits large amounts of ultra violet and infra-red rays. Both types of rays are invisible to the naked eye just as the same type of rays emitted by the sun are invisible.

  4. When welding with the electric arc, there is added danger that the small globules or droplets of molten metal may leave the arc and fly in all directions. These so called sparks range in temperature from 2000 ° to 3000° Fahrenheit and in size from very small to as large as ¼ inch. They present a personal burn hazard plus a fire hazard if they fall in inflammable material.

  5. Ultra violet rays • Use a welding helmet with the correct shade lens in good condition. • Wear suitable clothing—do not leave bare skin exposed to the rays of the arc. • Do not strike the arc without covering the face and eyes. Give warning to others before striking the arc. • Avoid looking directly at the arc where others are welding without proper eye protection.

  6. Burns • Protect eyes and face from flying particles of slag by use of safety glasses or face shield. • Wear adequate protective clothing. • Always wear leather gloves. • Wear high top shoes. • Keep collar, shirt pockets, etc buttoned. • Do not touch the electrode or metal where welding has taken place. • Handle hot metal with pliers or tongs. • Keep electrode stubs properly disposed of.

  7. Electric Shock • Make sure machine is properly grounded. • Never permit “live” parts of the electric welder to touch bare skin or wet clothing. • Do not cool electrode holders by emersion in water. • Turn off power supply when welder is not in use. • Do not stand on wet areas while welding. • Wear leather gloves. • Make sure cable are covered and in good condition. • Make certain that electrode holders are properly insulated.

  8. Tools • Welding helmet • Used when welding or watching someone else weld • Tinted goggles • Used when cutting • Clear goggles • Used at ALL other times

  9. Tools • Tape Measure • Welding gloves • Only used when welding • Pliers • Used for carrying ALL metal • Striker • Used to start flame when cutting

  10. Tools • Chipping hammer • Used to chip off slag • Wire brush • Used to clean off beads • Chalk • Used to initial your cut pieces of metal

  11. Part 1 • Clamp • Used to hold metal • Hacksaw • Used to cut two 1” pieces of square tubing • Chalk • Write your initials on your square

  12. Rules • Must wear shoes covering their toes and heel. • Must wear long sleeves. • Must wear pants (no shorts). • Hair must be pulled back. • Jewelry must be removed.

  13. Consequences • If rules are not followed • Student will write a letter home notifying parent • Daily grade will be affected • If continual, other actions will be taken

  14. Oxy fuel cutting • Loosen regulators • Turn off torch valves • Turn on bottles • Adjust acetylene to 3 pounds per square inch • Adjust Oxygen to 20 pounds • Turn on acetylene • Light torch • Adjust flame • Turn on oxygen • Adjust flame

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