Capacitor Discharge Stud Welding can be used to weld a metal fastener or stud to a metal sheet or box. This clean, fast and reliable process provides a strong weld such that when we destructively test the weld it will pull a slug out of the parent material. Studwelding is ideal for overcoming problems like reverse marking for signs or hygene in food surfaces. Have a look on this page for some examples of how Studwelding has improved design in a number of applications...
From M2.5 to M24 diameters, Studfast supplies a diverse and vast range of fasteners, available in mild steel, stainless steel, aluminium alloy and brass.
We stock externally and internally threaded studs, plain pins, earth tags, brackets and speed fix washers. Special designs are available with short lead times.
CD controllers use advanced inverter technology to make them lightweight and portable. All our controllers are compact, robust and mobile, with stabilised settings which allow for accurate adjustments, achieving the highest quality welds.
All electrical components are soak tested for reliability. Unintentional firing is prevented by safety circuits and in the event of component failure,
system shutdown will occur.
We stock a wide array of studwelding accessories.
Below are three popular items, but there are many other
offset attachments, centring jigs, extension legs, foot adapters, etc.
CHUCKS
Collets, perhaps better known as chucks fit into the handtool and hold the weld stud during welding. Grip on the stud is motivated by a metal clip or rubber ring.
NOSE CONE ASSEMBLIES
Used to accurately locate studs when using templates. These are available in three diameters; 30mm (standard), 1 inch and 22mm.
TESTING NOZZLES
Should be used in conjunction with the DIN tester bending bar. This enables the mechanical testing of welded studs in accordance with DIN267 part 5.
Why not take advantage of this fantastic offer? A CDM8 system
with an 8mm studwelding capability and "ready to go",
delivered to you for only £1300 plus VAT!
The new smooth ergonomic design of the CDM8 handtool is something we are proud of. As the business end of your studwelding system, the hand tool can take a lot of punishment in a busy production line.
The exceptional build quality of this handtool ensures high levels of productivity, and accuracy whilst all the time minimising operator fatigue.
Take a closer look
PRESSED Inserts can work loose, crack paint and leave stains. Holes need to be punched then deburred in parent material, weakening it. The reverse side is not always left flat and the insert is visible and unsightly. The resulting joint cannot always be guaranteed leak-proof.
DRILLING
Drilling and Tapping are very slow processes, requiring thicker parent material to achieve full joint strength.
Drills and taps get broken and fasteners can vibrate loose. Through drill holes need sealing and bind holes need clearing out.
THROUGH
Through bolting is not tamper-proof and is a cumbersome and slow process requiring two-handed assembly with access from both sides.
Holes weaken the parent material and leakage stains from the unsightly bolt heads are common.
PROJECTION AND RESISTANCE WELDING
means taking a component to slow fixed equipment, replacing electrodes and high power consumption costs. Soldering and Brazing requires clamping and causes distortion. Riveting is untidy, irreversible, requires holes, works loose and require reverse access.
REPLACINGStudwelding replaced inserts on these applications, resulting in faster production and stronger joints. Thinner sheet could now be used and with no reverse marking. Corrosion was eliminated as moisture ingress was prevented.
REPLACING DRILLING AND TAPPING
Studwelding allowed this manufacturer to speed up production considerably. Previously he had to leak test every through drilled and tapped hole. An alternative solution of using thicker flanges would have resulted in additional time and cost implications.
REPLACING THROUGH BOLTING
One component became tamper-proof, a clean design was the biggest benefit on another. On a third part, the gauge was reduced and leakage was prevented. Finally studwelding solved the problem of loose bolts and inaccessibility to the bolt head after assembly.
REPLACING RESISTANCE WELDING
removed a bottleneck by not having to take the biggest component to a large resistance welding machine. Replacing Soldering cured a corrosion problem caused by solder flux. Previously brazed components sustained heat damage.
There are three types of studwelding: Capacitor Discharge (CD), Short Cycle (SC) and Drawn Arc (DA). They are complementary and should not be regarded as alternatives. With each method, a weld stud is held in a handtool or production head, then presented squarely to the workpiece. The processes work as follows:
Although some cross-overs occur; we have put together a simple one-sheet guide
to help you select the correct process for your application;
L Clarkson
Leicestershire on Apr 30 2013
S Rigler
Basingstoke on Apr 1 2013
D Ridgwell
Portsmouth on July 13th 2015
Incorporated in 1988 Studfast Studwelding have been market leaders in the supply of quality Weld Studs
and Stud Welding Equipment for over 25 Years. Our experienced Sales and Technical team
are available to advise on the best Stud Welding Machine for you.
Based Centrally in Northampton, Studfast Studwelding are ideally positioned to bring you
the right Stud Welding package for your application. Free Advice is available thus providing you
with the solution to your fixing and fastening needs.
Our warehouse is stocked with millions of weld studs
and dozens of problem solving accessories and devices.
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There has never been a better time to make the switch. Studfast, the future of studwelding.