Welding angles

What should the arc length be when welding a root bead on a flat position groove weld to insure complete joint penetration?

1/32" Long

A cover pass should be no more than _______ " on heavy gauge metals greater than 1/4" thick?

1/8"

What diameter and type electrodes are used to place Tack Welds?

1/8" E6010 or E6011

Each layer of filler pass may not exceed _____ in thickness.

3/16"

What is the working angle for the third pass bead of the Horizontal T-Joint?

30 degrees, Travel angle 20 degrees

What is the travel angle for Lap Joints in the Flat Position on a single pass?

30 degrees, using a weave pattern.

What is the working angle for the root bead of the Horizontal T-Joint?

45 degrees, Travel angle 20 degrees

What is the working angle for the second pass bead of the Horizontal T-Joint?

70 degrees, Travel angle 20 degrees

Vertical position Butt joint work angle and travel angle is?

90 degree work angle, 10 to 15 degree travel angle push, 10 to 15 degrees into each toe.

Overhead position Butt Joints work angle and travel angle is?

90 degree work angle, 10 to 15 degree travel angle.

What is the work angle for the flat position Butt Joint?

90 degrees

What type of joint is used in fabricating straight and rolled shapes?

T-Joints

A cover pass should be no more than _______ " on light gauge metals less than 1/4" thick?

1/16"

Filler pass should fill the joints to a distance between ________" below flush with the metal surface.

1/16"

What is the minimum penetration , and maximum burn through for tack welds on butt joints?

100% minimum penetration with 1/8" maximum burn through

What is the travel angle for the flat position Butt Joint?

15 degrees to 30 degrees.

The electrode should be angles how many degrees into the each toe of the root pass when welding the Hott Pass and Secondary Filler pass?

15 to 20 degrees

What are the working angles for the Hot Pass or second pass on the horizontal Butt joints?

35 degrees above perpendicular to both plates with the electrode angles up and down 5 degrees into each toe of the root pass. 20 degree travel angle.

Vertical position multi pass lap joints work angle and travel angle is?

45 degree work angle , 10 to 15 degree travel angle push, weave 10 to 15 degrees into each toe.

Vertical position single pass lap joints work angle and travel angle is?

45 degree work angle , 15 -30 degree travel angle drag, weave 10 to 15 degrees into each toe.

What are the work angle and travel angle for T-joints in the flat position?

45 degree work angle, 30 degree travel angle, use slight whipping motion for root pass, for the second pass work angle will be 70 degrees, third pass work angle will be 30 degrees.

Overhead position T- Joints, and Lap Joints travel angle and work angle are?

45 degree work, 15 degree travel drag angle. Multiple pass work angles are 45, 70, 30,

What is the work angle and travel angle for Lap Joints in the Flat Position when welding a multi-pass?

45 degree work, 30 degree travel, lay root pass using slight whipping motion, use weave motion on all other passes.

What is the work angle for Lap Joints in the Flat Position?

45 degrees

The overlap on Lap joints should be what specification?

5 times the thickness of the thinnest piece, or no less than 1 inch.

What are the working angles for the root pass on the horizontal Butt joints?

5 to 10 degrees below perpendicular, 20 degree travel angle.

The correct keyhole size should be ?

Approximately 1 1/2 times the diameter of the electrode

What are the specification of a double pass fillet T- joint?

Both sides of joints are welded, resist weld failures when force is applied to either side

What are the types of weave beads?

Crescent, Figure 8, Rotary and Zigzag

What type of Beveled Butt Joint is used on material 3/8" or more in thickness, the joint can only be welded from both side, and the root face may be prepared to be a thickness of 3/32" to 1/8".

Double V with Root Face.

Closed Butt Joint

Edges of two plates are in direct contact with each other, suitable for steel plates up to 3/16" in thickness

Open Butt Joint

Edges of two plates are placed slightly apart with a root opening that is usually 3/32" to 1/8", Suitable for steel plates up to 3/8" in thickness

Beveled Butt Joint (V joint)

Included angle should not exceed 60 degrees to limit the amount of contraction that usually results as the metal cools.

Tack welds for horizontal position fillet joints should be what specification?

Length 1/4" to 1/2", Tack welds will be 1/3 to 1/2 the bead thickness with a minimum penetration of 1/16",

This type of joint is used when there is a need for greater penetration, A back-strip or block is normally used underneath this type of joint?

Open Butt Joint

What type of Beveled Butt Joint is used on material 1/8" or more in thickness, with the roof of the V having a sharp edge and without a root face?

Single V

What type of Beveled Butt Joint is used on material 1/4" or more in thickness, the joint can only be welded from one side, and the root face may be prepared to be a thickness of 1/16" to 1/8".

Single V with Root Face

How are the edges prepared for Beveled Butt Joints?

Single V, Single with Root Face, Double V with Root Face,

What are the specification of a single pass fillet T- joint?

Strength is dependent on the edges of the joint fitting close together, should not be used if subjected to heavy stresses from the opposite direction of welded joint.

This is one of the most frequently used joints in flat position welding?

The Lap Joint

What are the working angles for the Secondary filler passes on the horizontal Butt joints?

Work angle 90 degrees to both plates with the tip of the electrode angle down 10 degrees for the lower pass and 10 to 15 degrees for the upper pass. 20 degree travel angle.