Welding Flashcards Preview

Charlie Additional > Welding > Flashcards

Flashcards in Welding Deck (17)
Loading flashcards...
1

3G Welding Position

Welding vertical

2

Most common sizes of MIG wire

.023 , .030 , .035 , .045

3

Last 2 digits on an ARC welding rod refer to ______.

Flux or shielding on the rod. Higher the number, more shielding the rod has.

4

What do the first two digits on an ARC welding rod refer to.

The tensile strength per sq inch of weld. (60XX) rod = 60,000lbs of tensile strength per sq inch. (70XX) rod = 70,000lbs of tensile strength per sq inch.

5

3 most common MIG shielding gasses

Argon , Carbon Dioxide , Helium

6

How far do you open up the oxygen valve when setting up your torch ( oxy acetylene system ) ?

All the way

7

What color is the acetylene hose that is connected to the cutting torch ?

Red

8

4 Welding Process’

SMAW (stick) - shielded metal arc welding

MIG - metal inert gas welding

FCAW - flux core arc welding

TIG - tungsten arc welding

9

MIG welding was once known as ?

GMA - Gas Metal Arc

10

3 most common metals welded with MIG

Carbon steel , Stainless steel , Aluminum

11

MIG Electrode Code

Example: ( ER 70S-6)

ER- an electrode or filler rod that is used in either a wire feed or TIG welding.

70- A minimum of 70,000lbs of tensile strength per sq inch of weld.

S- Solid Wire

6- Amount of deoxidizing agent and cleansing agent on the electrode.

12

Most common wire used for welding carbon steel ?

ER 70S-6

13

MIG Welding Pros

- welds are clean with very little smoke.

- long welds with less restarts.

14

MIG Welding Cons

- welder cannot go too far from the MIG machine.

- wind is a major factor outdoors.

- always need a bottle of gas.

15

3 welding techniques

-Whipping the rod (moving back and forth motion)

-Circles to fuse the metal in a circular motion.

-Weaving a side to side motion ( for wider welds )

16

4 Welding Positions

Flat (1G)
Horizontal (2G)
Vertical Up (3G)
Overhead (4G)

17

Most common welding technique worldwide

ARC