×
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

Pickled and Oiled

Pickled and Oiled

Pickled and Oiled

(OP)
Pickeled and oiled metals help to decrease cut time on lasers, but has anybody experienced any problems with the oily metal farther downt the fabrication line.  For example, do you have to constantly clean your machines, do welders have more difficulty with that metal, and does blasting and paint still apply as well as without the oil.  thanks...

RE: Pickled and Oiled

The oil must be removed (after machining) before further processing.  However, delay cleaning if there is a delay or shipping involved, to avoid rust.
 
Re welding:  “The most common cause of porosity is the presence of organic materials…Oil, grease and die lubricants should be removed by degreasing and washing operations” and the surface completely dry before welding.
The Procedure Handbook of Arc Welding, 14th Edn., p. 6.3-15.  However, some welders will ‘smoke’ through oiled material on non-code work.

Re Blasting: Oil makes a good binding agent for sand, etc., and would clog up any blasting equipment that recycles abrasive.  At least, with properly pickled and oiled steel, there shouldn’t be any mill scale or rust to remove.

Re painting:  Absolutely essential to degrease and clean prior to priming/painting.

And, if plating:  The plater will clean as part of surface preparation; it is required by plating specifications. E.g., some require a ‘water break-free surface,’ meaning uniform wetting (no beading) when DI water is applied.

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