Discontinuity/ Defects
What is that
Procedures
Why
BONUS
100

What is a weld Defect?

Any flaw that COMPROMISES the usefulness of a weldment.

100


Slag Inclusion 

100

What is the acronym for Direct Current Electrode Positive 

DCEP

100

Name 2 Reasons you get porosity 


Entrapped gas "gas pockets" , insufficient gas coverage , dirty metal

100

' & " stand for what 

Feet and inches

200

What is a Discontinuity?

Any abnormality of a weld.

200


Porosity

200

What does DCEN stand for?

Direct Current Electrode Negative 

200

why does my rod get stuck

not enough amperage / improper striking technique 

200

What is .5 of a foot 

6"

300

Can a Discontinuity be a Defect?

Yes

300


Lack of Fusion

300

What welding Procedure Is notorious for Porosity?

MIG / SMAW

300

Why is it important to stack welding beads properly?

To insure a solid weld 

300

What types of material can not be cut with oxy fuel process?

NONE FARRIS METAL 

400

Is a Defect reparable?

Yes

400


Over Lap / Cold Roll / Cold Lap

400

What Is the rule on selecting the strength of the rod to weld with?

Equal to or Greater than the tinsel strength of base material.

400

why am I getting excessive spatter.

Long arcing 

400

what does FCAW 

Flux Core Arc Welding 

500

Can you fail a weld test if you only have Discontinuities and no Defects??

Yes, To many Discontinuities Is considered a Defect.

500


Name 3 Defects 

Lack of "root" Fusion / Excessive "Root" Penetration / Lack of penetration 

500

Where can I find out these things while building a project?

Rod Type 

Polarity

Parameters ( Amperage range )


WPS  (Welding Procedure Specification)

500
5 things that cause undercut. 

work piece to hot , to high of amperage , travel speed to fast , long arcing , wrong rod angle  

500

Solve the problem on the board. What would the pipe in the middle need to be cut at?

90 degree angle is 4.25" on center


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