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PRODUCTS |
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Weld Studs |
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Drawn Arc Weld Studs
- M 6 to M 20 |
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Capacitor Discharge
Weld Studs - M 3 to M 8 |
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Shear Connectors -
10 ø to 22 ø |
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Resistance Welding
Studs M 3 to M8 |
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Short Cycle Weld Studs
M 3 to M 8 |
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Features |
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High productivity - since
the process lasts for a fraction of a second |
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High production rate such as five -
six studs per minute for manual feeding and twenty studs
per minute for auto feeding, are achievable.
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Costly machining operations
like drilling, punching, threading, riveting etc. are
eliminated. |
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Improves design potentials due to less
distortion, no leakage, usage of thin plates, one side
accessibility etc.
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Strength of the joint is
higher than the base material and the stud. |
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The Stud
Welding Processes: |
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Capacitor Discharge Stud Welding |
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The Capacitors are charged |
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The CD - Stud in the gun
is moved by a spring to the workpiece surface. |
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The tip touches the workplace and closes
the electrical circuit. The rapidly increasing current
melts the tip instantly and ignites the arc.
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Stud and workplace surface
melt. |
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When the stud touches the workplace,
the arc extinguishes, the welding pools merge and solidify.
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Drawn Arc Stud Welding |
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The Stud is lifted up in
the gun by a lifting device and a secondary arc (pilot
arc) with low current is ignited. |
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Then the main arc is ignited
between the tip of the stud and the workplace. |
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The surface of the stud
and the workplace melt. |
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After the end of adjusted welding time,
the studs is moved to the workplace, both welding pools
merge. The power unit is switched off; the weldpool
solidifies and cools down.
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Special
Processes |
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Stud welding by Short Cycle
- SC |
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Ideal to fasten insulation
pins (e.g. refractory insulation) |
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Drawn Arc Short Cycle Stud
Welding |
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Christmas tree Studs (e.g.
cable fasteners) |
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Applications |
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| Boilers:
to increase the surface area of water tubes. |
| Furnaces: to support
insulation and bricks. |
| Electrical: in the
manufacture of switchger cubicles, transformers, instrument
panels. |
| Railways & Vehicles:
in vacuum brakes, automobile bodies. |
| Structural: in composite
construction, bridges, roof decking. |
| House hold appliances:
in cooking pots, frying pans, water heaters. |
| Medical Equipment:
to provide invisible, sterile connections. |
| Ship Building: in
deck welding, insulation on bulk heard, securing pipe
hangers, conduits. |
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