×
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

material options for high precision machining

material options for high precision machining

material options for high precision machining

(OP)
We are looking for alternate material for an application where a glass filled PEI (ultem) is currently used. There are a few high precision features in the finished part so I am looking for a material that has good dimensional stable during and after machining (.0005 hole tolerances). Other important characteristics would be low water absorption, compatible epoxies for bonding, operating temps of 85+ C, and chemical resistance to common household cleaning solvents (such a wide range that I hesitate to list them all). The material cannot be electrically conductive.

Peek is being explored but I'd appreciate any suggestions.

thanks

RE: material options for high precision machining

PPO (Noryl) might be an option. PPSU or some of its sisters are another possibility, but I've never machined it.

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