Speaking of tack welds

Home| Search | About

User Password

Lost Password?

Welding Forums - Welding of materials for manufacture & repair.

Bookmark this page: YahooMyWeb

Yahoo!

Google

Windows Live

del.icio.us digg

digg

Netscape

Subject

Author

Date

Speaking of tack welds

Bob La Londe

07-17-2008

Re: Speaking of tack welds

Bob La Londe

07-24-2008

Posted by Bob La Londe on July 17, 2008, 4:00 pm

Please log in for more thread options

I was recently watching all those mig welding video shorts on the Miller
website that Ernie turned us onto. I noticed that theyrecommended a tack
weld every so many inches, and then go back and make your weld. In the past
I have always made the absolute minimum number of tacks to hold the piece in
place because I found it hard to get a nice continuous bead through the tack
welds placed for holding the materials. Is there a trick to that or do you
just stop when you hit the tack and then try to flow into it on the other
side to restart your bead? Even with flux core or gas I've found the
hardest part of a weld (for me) to get just right is where you start.

Bob
www.YumaBassMan.com

Posted by Bob La Londe on July 24, 2008, 2:46 pm

Please log in for more thread options

I'm still trying to figure out the best way to deal with tac welds.

Do you just weld through them? Stop and start again on the other side?

Posted by Grant Erwin on July 24, 2008, 3:12 pm

Please log in for more thread options

Bob La Londe wrote:

> I'm still trying to figure out the best way to deal with tac welds.
>
> Do you just weld through them? Stop and start again on the other side?
>
>

Bob, it depends entirely what you are welding. Lots of times I assemble a
weldment with a lot of little tacks and then if a seam is important and it
is sufficiently held by all the other tacks and welds and if cutting the
tacks won't make anything move, then I'll grind out the cracks. But that
significantly increases labor costs so generally I weld over them but move
a little faster so the resulting bead is more even. You don't want the
watermelon-in-a-snake look. Practice watching the puddle, which can be
tricky when MIG welding with that bigass nozzle in the way.

Grant

Posted by Bruce in Bangkok on July 24, 2008, 8:41 pm

Please log in for more thread options

wrote:

>I'm still trying to figure out the best way to deal with tac welds.
>
>Do you just weld through them? Stop and start again on the other side?
>

Generally, depending of course on the size of the Tacs, you can weld
over them. If you are aiming at X-Ray quality welds then it is normal
to grind out each tac as you come to it.

Bruce-in-Bangkok
(correct Address is bpaige125atgmaildotcom)

Posted by SteveB on July 25, 2008, 2:34 am

Please log in for more thread options

>>I'm still trying to figure out the best way to deal with tac welds.

What is it exactly you are welding?

Steve

Similar Threads	Posted
Speaking of winmiter...	May 11, 2006, 1:28 pm
T and Corner Welds	July 17, 2008, 3:16 pm
Re: T and Corner Welds	July 18, 2008, 3:16 am
tips for finishing stainless welds	May 16, 2007, 12:52 pm
Cladding 1/2" HY-80 and existing butt welds...	October 23, 2007, 4:25 pm
??? How to Make Long Welds Without Expansion Cracking ???	September 14, 2008, 1:22 pm
Anyone here have experience with sanitary welds in a brewery? Seattle area. Paying well.	April 17, 2007, 4:17 pm

XML Sitemap