Deck 13: Machine and Automatic Pipe Welding

Question 1

In today's global market, why is it important to keep costs down? ​

Answer 1

Keeping costs down is important in order for companies to stay competitive, and automation can give them that edge. ​

Question 2

_____ uses a computer-controlled welding power supply to accurately control the size and shape of the molten weld pool. ​

A)Metal cored FCAW​
B)Modulated current GMAW​
C)PAW​
D)SAW​

Answer 2

B

Question 3

One of the most important considerations that must be made before automating a process is _____. ​

Answer 3

profitability

Question 4

Orbiting pipe-welding heads are sometimes called _____. ​

A)roots​
B)beads​
C)tubing​
D)bugs​

Question 5

Name the processes that are well suited to automation and are most commonly used. ​

Question 6

The _____ requires two special power sources, two wire feeders, and a single torch that has two contact tips feeding wire out of each, but arranged in line out of a single welding torch. ​

Question 7

Automated pipe welding performed in a shop has _____requirements than automated pipe welding done in the field. ​

A)nearly the same​
B)exactly the same​
C)significantly different​
D)slightly different​

Question 8

There are _____ different types of welding torch setups that are used in automated welding. ​

A)two​
B)three​
C)four​
D)five​

Question 9

_____ is an automated process where a track-mounted welding head moves around a fixed pipe or tubing joint to produce a weld that joins two sections. ​

A)Stationary pipe welding ​
B)Orbiting pipe welding ​
C)High-strength welding ​
D)Lateral walking​

Question 10

Today, there are _____ processes that are well suited to automation and are the most commonly used. ​

A)two​
B)three​
C)four​
D)five​

Question 11

Which process uses a concentrated, superheated plasma gas column to rapidly melt pipe or tubing much as GTAW, but much faster. ​

Question 12

Most orbiting welding requires a shielding gas that is supplied through a _____. ​

A)gas hose​
B)push travel​
C)leading travel​
D)trailing​

Question 13

_____ uses a laser with a GMAW or GTAW arc to produce high-speed, deep-penetrating welds that have narrow, heat-affected zones with excellent metallurgical and mechanical properties. ​

Question 14

_____ describes what happens when a pipe moves horizontally as it is rolled because of unevenness in the pipe surface or misaligned rollers. ​

A)Weld quality​
B)Lateral walking​
C)Welding environment​
D)Cost-effectiveness​

Question 15

How does the supply of skilled welders compare with the demand? ​

Question 16

Pipe rollers are not very _____, so they are typically only used in welding shops, not in the field. ​

Question 17

The first orbital welding heads were used by the _____ and nuclear power industries to meet their need for a highly reliable and cost-effective way of producing pipe welds. ​

Question 18

_____ is when the arc, filler metal, joint travel, and joint guidance are all controlled by a machine. ​

A)Pipe welding ​
B)Automatic welding ​
C)Machine welding ​
D)Robot welding ​

Question 19

Which technique has been used for years to weld longitudinal seams on pressure cylinders? ​

Question 20

_____ uses a tubular filler wire much like the traditional FCA welding wire, but the filler is mostly metal powder that provides alloying elements and filler metal for an improved weld mechanical property. ​

A)Metal cored FCAW ​
B)Modulated current GMAW ​
C)PAW​
D)SAW​