Spot Welding Hazards and Safety

There are many hazards produce while performing experiment on Spot Welding Machine.While using this machine we must know its Hazards,Risks and Control for safety about Spot Welding Machine.

Mechanical Hazards:

  • The sharp edges of the welding plates can be injured to the workers hand arms or waist.
  • As we know that the thin plates are used for spot welding,these plates also have sharp edges which may cause hazard for worker or person who is doing work on spot welding machine.
  • the spindle can touch the hand and cause a serious injury while welding manually.
  • Spindle or electrode is very hot due to electrical heat can cause serious injury.
  • paddle of the machine is also a cause of accident.
  • twisted wires can disturb the worker’s feet may cause injury.
  • As the spot welding machine is manually operated so foot is used for contraction of two electrode so electric wires also make the disturbance to worker.

RISKS of Mechanical hazards:

  • As the electrode is hot so it may cause burn the skin of worker
  • if the surface of sheet is not smooth then the electric current may pass through the metal sheet.
  • transformer can burn and catch fire.
  • short circuit can occur.

CONTROLS of Mechanical hazards:

  • Use non insulator gloves.
  • By using goggles.
  • Must use safety shoes.
  • Install and ground unit according to all codes. Disconnect input power before servicing.

Non Mechanical Hazards:

  • The sparks produces while welding can damage to worker.
  • Flying sparks and hot metal are often thrown off from the spot weld joint which can produce hazard.
  • The pressure applied on the paddle wheel by worker feet can cause injury.
  • As when we apply pressure on paddle for the welding of thin sheet with the help of spot welding then pressure may affect or may cause hazard.
  • The twisted electrical wires of the machine can catch fire and cause a severe injury.
  • If wiring is not proper then it may cause twisting of wires so it may damage for worker who is working on that spot welding machine.

RISKS of Non Mechanical hazards:

  • The pressure applied on the paddle wheel by workers feet can cause breakage of bone of foot.
  • Pressure may affect or may cause of twisting the worker’s feet.
  • It Can damage facial skin. 
  • Flying spark can burn the worker’s skin and damage its cloth.
  • Transformer can catch fire.

CONTROLS of non Mechanical hazards:

  • Use safety shield.
  • Use the non insulator gloves.
  • Do not weld near flammables move them away.
  • keep the fire extinguisher nearby, and know how to use it.

Access Hazards:

  • Welding operators face an array of hazard including
  • electric shock,
  • fumes and gases,
  • fire and more Awareness of the most common welding hazards.
  • Knowing how to avoid them ensures a safe, productive work environment for all.

RISK of Access hazards:

  • Fumes and gases.
  • It’s no surprise that overexposure to welding fumes and gases can be hazardous to your health.
  •  Fire and explosions.
  • Injuries from insufficient PPE.
  • Other safety considerations. 

CONTROLS of Access hazards:

  • Do not touch hot work piece, tips, or tongs with bare hands.
  • Allow tongs and tips to cool  before touching. 
  • Wear proper insulating gloves if handling hot work or parts is necessary.
  • Do not breathe the fumes.
  • Use proper ventilation.   
  • Read Material Safety Data Sheets (MSDSs) for metals, coatings, and cleaners 

Manual Material Handling hazards:

  • When we don’t follow safe procedures then we will face hazards.
  • Task involving repetitive motion such as frequent bending
  • Storing material in awkward postures E.g. reaching away from body and twisting.
  • Moving parts, such as tongs, tips, and linkages, can injure fingers and hands.
  • Electric shock from wiring is a possible hazard. 
  • Include cutting, and brazing operations include exposures to metal fumes and to ultraviolet (UV)radiation. 

RISKS of Manual Material handling hazards:

  • Lifting loads improperly or carrying loads that are either too large or too heavy resulting in strains and sprains.
  • Being struck by or caught between materials or being caught in pinch resulting in fractures and bruises.
  • Risks that include burns. 
  • Eye damage. 
  • Cuts, and injury to toes and fingers.

CONTROLS of Manual Material Handling hazards:

  • Use right equipment. 
  • Reduce noise.
  • Reduce vibration.
  • Do not put hands between tips.
  • Keep away from linkages and pinch points.
  • Keep all guards and panels in place. 
Four types of hazards of Spot Welding Machine

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