×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Welding parameters in automatic process

Welding parameters in automatic process

Welding parameters in automatic process

(OP)
Hi all,

I work in automation and recently we got a question from production, it looked really silly until we started to know the problem. It started like a repeatability fault in the automatic welder machine. Now we know that the problem starts with brand new or machined welding discs. Each set last for about 120 welds, but always no matter the diameter the first welds (around 20) go wrong having to play with current/speed relations to get it to weld, around the 21th weld it settles around the parameters of the previous disc sets.
The welding machine data are as follow.
manufacturer    -Vai Clesim
type         -mashes lap seam type
        -direct current welding 6 pulses
capacity     -with 1880 mm
        - thickness up to 2mm
weld wheel    -copper alloy class III
        -diameter 305mm
        -thickness 16mm
steel type     -CQ, ES, SES, HES, HSLA, Phosphored steel, BH, annealled or full hard.

Any ideas why it behaves like that? thanks
 

RE: Welding parameters in automatic process

Is the wheel fed by copper loaded carbon brushes, and are you making sure the brushes are properly bedded in on the new wheel?
B.E.

RE: Welding parameters in automatic process

Here is a site that has some very good information on TIG welding if you don't mind Ed Graig's talking points.  He also has a lot of information in the form of books and CD"s

http://www.weldreality.com/default2.htm
 

RE: Welding parameters in automatic process

Sorry about that.

Know very little about this type welder, but have been on the receiving end of some poor welding from said machines.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources