How strong is a weld Stud?

Tensile Strength: 60,000 PSI Min. Yield Strength: 50,000 PSI Min. Elongation in 2 inches: 20% Min.

How do you test a torque on a weld stud?

A simple way to test the shear torque of weld studs. Apply a straight pull of the WSTT wrench (no side load). When the wrench breaks-over and the weld stud is still attached then it passed. If the weld stud breaks off – then it failed.

What is CD weld stud?

Capacitor Discharge stud welding is a semi-automatic arc welding process. The CD process allows stud welding of dissimilar metals. The CD process is commonly used in most sheet metal shops.

How do you test a stud welder?

In addition to visual examination, the test shall consist of bending the studs, after they are allowed to cool, to an angle of approximately 30° from their original axes by either striking the studs with a hammer or placing a pipe or other suitable hollow If failure occurs in the welded zone of either stud, the …

What is capacitor discharge stud welding?

Capacitor discharge stud welding has been successfully used for many years all over the world. It allows weld studs with a maximum diameter of M12 to be welded. The welding process is executed by discharging the capacitor battery within a fraction of a second from 1 – 3 ms (0.001 – 0.003 sec.)

Is there a torque test for welding studs?

Torque check of the welded studs for quality assurance. With this tool you can make a fast and easy, non-destructive stud test. A quantitative check of the welding quality in line to ISO 9000ff can be made. A bending torque is applied by a torsion meter onto the stud. This applies a defined stress in the welding zone.

Which is the best welding position for CD studs?

Welding Position: CD Studs can easily be welded in the down hand, side hand and overhead positions. The following 3 pages of charts contain CD weld stud – Tensile / Torque Strengths.

How does the capacitor discharge ( CD ) welding process work?

Capacitor Discharge (CD) Stud Welding Process Description 1 The weld gun and stud are positioned against the work. 2 Stored energy is discharged through special weld ”timing” tip and stud starts downward. 3 The stud is forced into the pool of molten metal. 4 Metal solidifies and weld is completed in milliseconds. More

What do you need to know about Stud welds?

Annealing: All low carbon steel and stainless steel studs are annealed where required. Weld Base: CD Studs are available in the Flanged, Small-Flanged and Non-Flanged condition. Length Reduction: CD Studs have no appreciable length reduction after welding.