Spot and Projection Welding

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SPOT AND PROJECTION WELDING
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Types of Welding
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Spot Welding
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Spot Welding...

• In Spot Welding the pieces to be joined are
• clamped between two electrodes under force,
• and an electrical current is sent through them.

• Force is applied before, during, and after the
  application of current to prevent arcing at the
  work piece.

• In spot welding fusion of faying surfaces of a
  lap joint is achieved at one location by opposing
  electrodes

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Spot Welding Machines
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Advantages of Spot Welding

• Spot welding is quick and easy
• No need to use any fluxes or filler metal
• Multiple sheets joined together at the same
  time.
• No dangerous open flame
• Saves production costs.

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Applications of Spot Welding
Nuts Bolts
Join two Metal Sheets
Automobile Industry
To make Batteries
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Projection Welding
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Projection Welding

• In Projection welding size and shape of
  individual welds are determined by the presence
  of projections, embossments or intersections on
  the metals to be joined.
• Metals are heated and coalescence is achieved
  not through the use of an arc, but through the
  metals resistance to electrical currents passing
  through them as they are held together with
  pressure by electrodes.
• In projection welding the pieces to be joined are
  clamped between two electrodes under force, anan
  electrical current is sent through them.

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Projection Welding Machines
Capacitor Discharge Projection Welding Machines
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Advantages of Projection Welding

• Simultaneously we can make any number of welds
  in heavier materials easily.
• Welding can be made in metals that are too thick
  to be joined by spot welding.
• Lower Electrode Maintenance.
• Lower amount of current and pressure
  needs to joint metals.
• Faster and Quicker and used in
• mass production

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Application of Projection Welding
Compressor Parts
Diamond Segment Welding
Fan Covers
Semiconductors
Automobile Industry
Hollow Metal Doors
Auto Electricals
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THANK YOU
Artech Welders Pvt Ltd. No. A- 16, H- Block,
MIDC, Pimpri Pune, Maharashtra - 411018,
India Phone (91)-(20)-27476160/27462772 Mobile
(91)-9822438782/9822069212 E-mail
sales_at_artechwelders.com www.artechwelders.com