×
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

ASME welding

ASME welding

ASME welding

(OP)
What temperature shall the part be before it is welded? How to decide post-welding heat treatment? What is the air velocity limit during welding? Thank!

RE: ASME welding

Your question relates to preheat requirements and post weld heat treatment requirements for welding materials. Generally, these requirements are determined by;

 - chemical composition and heat treatment condition of the material(s) you are joining
 - selection of filler metal to join the material and weld joint configuration
 - thickness of the material(s)

Knowing the three items above, you can review the welding section of any construction code or Standard and determine the preheat and post weld heat treatment requirements. You can also calculate the preheat requirements based on accepted formulas that use the chemical composition of the base metals and thickness.

By the nature of your question, it sounds like you should visit the web site below and review background information on this subject of welding;

http://www.khake.com/page89.html

RE: ASME welding

2nd question
Ans; The air or wind velocity restrictions have been discussed before, and AWS recommends a restriction of 5 mph or less for welding processes that require a shielding gas.

RE: ASME welding

(OP)
Thanks!

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