Thickness requirement standard of energy storage spot welding machine

How many mm should a spot weld be?

Thus, a spot weld made in two sheets, each 1 mm in thickness, would generate a nugget 5 mm in diameter according to the 5*t ½ -rule. Diameter of the electrode contact surface should be slightly larger than the nugget diameter. For example, spot welding two sheets of 1 mm thickness would require an electrode with a contact diameter of 6 mm.

How do you Weld a sheet with a 2 mm thickness?

When welding sheets with a thickness greater than 2 mm it might be appropriate to divide the weld time into a number of impulses to avoid the heat energy to increase. This method will give good-looking spot welds but the strength of the weld might be poor.

What size electrode do I need for spot welding?

Diameter of the electrode contact surface should be slightly larger than the nugget diameter. For example, spot welding two sheets of 1 mm thickness would require an electrode with a contact diameter of 6 mm. In practice, an electrode with a contact diameter of 6 mm is standard for sheet thickness of 0.5 to 1.25 mm.

How to determine a standard weld strength?

The appropriate welding data which delivers the required standard weld strengths can thus be determined (Figure 4500.02.03). 0 3 4 Analogous to the parameter settings, geometrical values like weld spot and nugget diameter as well as distance from edge depend on the material.

What are the recommended spot welding parameters for low-carbon steel?

Table 2: Spot welding parameters for low-carbon steel >700 MPa (AHSS). A-14 Use of coated parameters recommended with the presence of a coating at any faying surface. These recommendations are based on available weld schedules representing recommendations from resistance welding equipment suppliers and users.

What is resistance spot welding?

One general criterion of resistance spot-welding is that the weld shall have a nugget diameter of 5*t 1/2, “t” being the thickness of the steel sheet. Thus, a spot weld made in two sheets, each 1 mm in thickness, would generate a nugget 5 mm in diameter according to the 5*t ½ -rule.