Safety in Welding Welding Safety No substitute for caution and - - PowerPoint PPT Presentation

Safety in Welding

No substitute for caution and common sense

• Each person must take personal responsibility
• Their own safety and safety of others on the job
• A number of potential safety hazards

Learning to work safely

• As important as learning to be a skilled welding

fabrication worker

Welding Safety

 Guidelines

 Shirts must be long-sleeved  Pants must be long enough to cover the tops of the

boots and must be without cuffs

 Boots must have high tops  Caps should be thick  Clothing must be free of frayed edges or holes

 Some clothes have pockets

 Not safe to carry a butane lighter or matches while

welding

 Gloves—Wear heavy leather gloves with

gauntlets

 Welding cap—Wear a cap with a flexible bill

that can be slipped around to cover either ear to keep sparks and metal splatter out of the ear

• pening.

 Shirts—Wear heavy, long-sleeved shirts with

pocket flaps; remove pockets or tape them

 shut if they do not have pocket flaps; keep

collar and sleeves buttoned to keep out sparks.

 Pants—Wear pants that have no cuffs and are

long enough to cover the top of your shoes or boots.

 No fray jeans or shorts

 Extra protection is needed for each person who

is in direct contact with hot materials

 Hand protection  Body protection  Waist and lap protection  Arm protection  Leg and foot protection

 Eye protection

 Must be worn in the shop at all times

 Safety glasses with side shields  Goggles  Full face shield  Flash glasses

 Safety glasses with side shields

 Adequate for general use  Not suitable for heavy grinding, chipping, or

• verhead work

 Must be worn under an arc welding helmet

at all times

 Even with quality welding helmets, the welder

must check for potential problems

 Undetectable leaks of ultraviolet light can cause a welder's eyes

to itch or feel sore

 Ensure lens gasket is installed correctly  Tape can be used as a temporary repair

 Undetectable leaks  Proper welding helmet

 Welding environment can be very noisy

 Hot sparks can drop into an open ear and cause

severe burns

 Several forms of protection

 Earmuffs cover the outer ear completely  Earplugs fit into the ear canal

 Welding area should be well ventilated

 Natural ventilation is best  Forced ventilation may be required  Large enough areas may not require forced

ventilation

 Burns

 One of the most common and painful injuries  Caused by ultraviolet light rays or contact with hot

welding torches

 Chance of infection is high

 All burns must receive proper medical treatment

 Divided into three classifications

 First-degree, second-degree, and third-degree

 Some types of light can cause burns

 Ultraviolet  Infrared  Visible

 Arc welding produces all three types of light

 Gas welding produces visible and infrared light only

 Light from the welding process

 Can be reflected from walls, ceilings, floors, etc.

 Long sleeves and gauntlet welding gloves.  Cutting goggles with shade 5 lens.  Use proper friction lighter to light gas.

 https://www.youtube.com/watch?v=ejEJGNL

To84

Fires and explosions

• Do not carry any cigarette lighters in the

welding lab.

• Do the following to protect from fire and

explosions:

• Always know where the fire exits and fire

extinguishers are located.

• If welding within 35 feet of a combustible
• bject, utilize a fire watcher, who can

watch for landing sparks.

Types of Welding Hazards

 Four types

 Type A: combustible solids  Type B: combustible liquids  Type C: electrical fires  Type D: combustible metals

 Location

 Appropriate type should be located near types

• f combustible materials it is used for

 Proper PPE Required  Correct Polarity  Turn off when not in

use

 Check Welding Hood

 Insure Insulators are not broken.  Check cables for breaks in insulation.  Once electrode is placed in holder end of

electrode is live.

 Always stop and do an inspection of the

grinder before first use.

 Safety glasses, face shield, gloves.

 Do not grind out in the center of the

lab for any reason!

 Grind in booth with curtain closed.  Grind in grinding room.

 Fasten all loose clothing  Tuck in shirt tails  Remove strings from

sweat shirts or jackets.

 Take special care to keep

clothing, other cords, clear.

 Do not use flat, buff on

edge or slight angle.

Release trigger and hold blade on base material until the blade stops!

 Considerations

 Work area: should be picked up and swept

clean

 Arc welding areas: painted with a flat dark

color

 Portable screens: used if welding outside the

welding booth

 Piece of hot material is left unattended: write

hot on it before leaving

 Used for assembly and disassembly of parts

 Adjustable wrench is the most popular  Fewer points a box end wrench or socket has:

the stronger it is

 Mushroomed heads of chisels, punches, and

the faces of hammers should be ground off

 Always use the correct tool for the job

 Considerations

 Hand tools should be treated properly and

not abused

 Keep hand tools clean  Make sure that hand tools are sharp  Protect cutting edges when carrying  Keep hammer handles secure and safe  When swinging a hammer, be absolutely

certain that no one is within range

 Eye Protection  Use tongs & gently

submerge weldments



Protect others from HOT steel

 HAND WASH  EYE WASH  FIRST AIDE  HAND SOAP  DRINKING

FOUNTAIN

 Safety is of the utmost importance

 The Instructor ensures welders comply with

safety rules

 Wear proper clothing, shoes, and protection  Have established procedures in case of

accidents

 Check equipment periodically