Metallurgy on CWI exam

Date 10-29-2008 19:10

First of all, please note that I am NOT an aws CWI myself, so take this post with a grain of salt :)

I think in order to become CWI you will just need a very very basic knowledge of metallurgy, fx. why preheat, etc...
I am sorry to say, but if you at this point dont know theese very basic things, you might need some "hands on experience in the field of welding and inspection" prior to become certified and be on your own as a CWI.

3.2

By johnnyh (***)

Date 10-29-2008 19:23

You should try to get a copy of "API Recommended Practice 577 Welding Inspection and Metallurgy". It starts with the basics and it also helpful for the CWI test.

By BryonLewis (****)

Date 10-29-2008 20:09

Thanks guys. I have welded for 16 years now. I understand preheat etc. but some of the information in the Cert. Man. and other resources that I am using get pretty in depth. And I am just trying to get a feel for how deep the questions can get on the exam since according to the AWS website states that approx. 6% of the questions deal with metallurgy.

By js55

Date 10-29-2008 21:28 Edited 10-29-2008 21:30

Bryon,
Try these.
http://www.aws.org/w/s/wj/supplement/supplement.html
http://www.msm.cam.ac.uk/phase-trans/pubs/pt2.html
http://www.msm.cam.ac.uk/phase-trans/2002/welding.1.html

That'll keep ya readin for a while. We need Henry here I'm sure he'd have a lot more for us. You can also get really good stuff from the DOE tech papers site and NASA.

Besides, ask here. Its what we do.

By BryonLewis (****)

Date 10-29-2008 22:06

Thanks for the links. I'll get on them tomorrow.

By gwg

Date 10-30-2008 15:25

Here are some decent sites regarding metallurgy/materials in relation to welding

http://www.matter.org.uk/steelmatter/manufacturing/6_3.html
http://serkanakinci.tripod.com/id19.html
http://www.khake.com/page89.html

By Quibo

Date 11-04-2008 16:31

thanks a lot for the links, very good.

By Ke1thk

Date 11-01-2008 14:39

Hello,

I'd get a copy of a welding textbook, such as Welding Principles and Applications. You can find them in most public liberaries or on Amazon.com. Save money and buy an old version for about $20. It's a cheap source for a lot of basic information. I had an instructor at collage tell us to, "Read a chapter a month for the rest of your life. This is your bible. Repeat as long as your welding."

Good luck

By ssbn727 (*****)

Date 11-03-2008 05:59

Google up "The James F. Lincoln Foundation" You will see a link to their publications offerings... Look for the publication, "Metals, and how to weld them."
I believe the cost of the book is a "Really Expensive' ten dollars or around that price but, it will be probably on the top ten list of the best ten dollars or so, you ever spent!!!
Purchase the book, and I guarantee that you will NOT be disappointed!!! :) If you don't feel like purchasing the book at this moment, then check out this link:

http://www.welding-advisers.com/Welding-topics.html

ENJOY!!! ;) ;) :)

Respectfully,
Henry

By jrw159

Date 11-03-2008 14:04

Hank,
At the risk of an unnecessary comment, NICE link!! :-)

Thanks a bunch.

jrw159

By welderbrent (*****)

Date 11-05-2008 03:45

Bryon,

I held off responding to this at first but thought better of not sharing my experience with the test.

1) There are not a lot of questions on metallurgy.
2) Study the WIT book and some of the others and they will give you most info you need.
3) Check out these other sites mentioned.
4) Our seminar instructor did a great job of filling in some gaps in my understanding of metallurgy especially in view towards the test.

You seem to be studying hard for this and with plenty of time ahead of your test. You should do fine.

Have a Great Day, Brent

By vittorio (*)

Date 11-14-2008 11:06 Edited 11-14-2008 11:34

this is a good starting reference

DOE FUNDAMENTALS HANDBOOK MATERIAL SCIENCE Volume 1 of 2
http://www.hss.energy.gov/NuclearSafety/techstds/standard/hdbk1017/h1017v1.pdf

DOE FUNDAMENTALS HANDBOOK MATERIAL SCIENCE Volume 2 of 2
http://www.hss.energy.gov/NuclearSafety/techstds/standard/hdbk1017/h1017v2.pdf

KEY to METALS * Steel Knowledge Base
http://steel.keytometals.com/default.aspx?ID=Articles

S.
Corrosion Protection

By js55

Date 11-14-2008 13:55

vittorio,
Those references are excellent. I've already got much of it printed up or saved. Though there's too many pdf's for now on the corrosion site.

By BryonLewis (****)

Date 11-14-2008 13:58 Edited 11-14-2008 14:00

Thanks. Your website looks pretty interesting too.