Backing bar design

[ScooterMagee]

What parameters or standards determine the recommended design of the groove profile in a removable backing bar?

 

[civeng]

One important factor, is the access space for the welding gun, you must have a big enough gap which will permit you to weld at the root of your prepared joint and also have the right welding angle.

 

[iven]

Welding backing bars are an off the shelf item at most welding supply shops.
AWS D1.1 requires that the composition and size be detailed on the WPS. Good Luck!
Iven