Resistance Seam Welding (Leaving Cert Engineering): Flashcards
📚Flashcards
Practise the cards
12 cards from this deck
ShowHide
Practise the cards
12 cards from this deck
What is resistance welding?
What is resistance welding?
Metal joining process creating heat through electrical resistance
Two main types of resistance welding
Two main types of resistance welding
Spot welding and seam welding
What spot welding creates
What spot welding creates
Individual weld points
What seam welding produces
What seam welding produces
Continuous weld lines
Electrode type in seam welding
Electrode type in seam welding
Wheel electrodes (rotating copper wheels)
Current type in seam welding
Current type in seam welding
Pulsing current
How continuous seam forms
How continuous seam forms
Overlapping spot welds
Key advantage of resistance welding
Key advantage of resistance welding
No flux or filler metals needed
Seam welding application: containers
Seam welding application: containers
Steel containers, tins, cans, drums
Seam welding application: vessels
Seam welding application: vessels
Pressure vessels (leak-tight seams)
Power control: step-down transformer function
Power control: step-down transformer function
Transform high voltage to lower, safer levels
Power control: rectifier function
Power control: rectifier function
Convert AC to DC current