SMAW 1
Which steels can be welded with SMAW ?
Carbon,low alloy, stainless steels
What is the most common length of SMAW electrode?
14 inches
Which electrode length has the greatest percentage of waste?
9 inch
Which type of power source is used with SMAW
Constant Current (CC)
How is voltage controlled with SMAW?
By the welder manipulating the arc length.
Which type of volt- ampere curve is used with SMAW?
Drooping
What is a benefit of the twist type electrode holder?
They hold the electrode tightly allowing the welder to bend the electrode as they choose.
What will result when using a small welding cable and high amperage?
The welding cable becomes damaged from over heating.
When welding with SMAW electrode what can be done to increase electrode burn off rate?
Use direct current electrode negative (DCEN)
7018 electrode has what F number?
F-4
An 309 electrode has what F number ?
F-5
What is the intended result of a post weld heat treatment.
Improve impact properties
What is the typical work angle when using a SMAW electrode.
1/2 the included joint angle
To avoid blocking the view of the weld pool left and welders typically weld from right to left. True or false
TRUE
What should be done to a work piece just before welding?
Remove mill scale and surface contaminants
Bridge tacks become a part of the root weld
FALSE