×
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

How to properly show pipe/tube coping in a mechanical drawing

How to properly show pipe/tube coping in a mechanical drawing

How to properly show pipe/tube coping in a mechanical drawing

(OP)
Good morning all,

I am trying to figure out the best way to show a pipe coping detail in a drawing using AutoDesk Inventor.
I have a length of aluminum tubing that needs coping at both ends. Some of the coping is 90 degree some are different angles.
Is it typical to just give a diameter and an angle for the coping?
Do you put this information in a note or show it in a detail view?
Any help would be appreciated, please show examples if possible, thanks.
I am working on an example at the moment and will show my work here when done. I figured in the meantime I would ask for a little guidance on the subject.

EDIT:
Here's what I came up with for one end of the tubing. I still need to show coping at the other end but it will be cut perpendicular to the face shown here. I would really like to come up with an isometric view for this, I think it would look better and show a better representation for what we want our part to look like.
Again, any advice on this would be appreciated.

RE: How to properly show pipe/tube coping in a mechanical drawing

(OP)
bumped,can anyone see this?

RE: How to properly show pipe/tube coping in a mechanical drawing

If the tubing is pressurised and/or to comply with a piping code rules you may need to think using suitable fittings at the tube connections. I am not sure if the fittings are available in any angle. Search Google for fittings' availability.

However If you are attaching tubes for general purpose what you are doing is one of the options for tube connections. If the tubes are going to be loaded axially and bend in/out of plane you need to get structural engineer approval.

RE: How to properly show pipe/tube coping in a mechanical drawing

(OP)
Thank you for the reply. No, these are not to be pressurized, this is simply a structural design.
My question isn't about the tubing application, my question is simply "what is the standard for showing pipe/tube coping"?

RE: How to properly show pipe/tube coping in a mechanical drawing

Show the intersection, the location of the intersection of the work point of the two centerlines. The nominal pipe designations for both pipes. The angle of intersection.

The shop floor will cope the ends and add the "long-side" extra length needed. Most often, for standard diameters, they either have the circular saws/burning templates or can purchase the marking tools. Once the first fixture is made, they use that setup for the remainder. Weld prep gaps and offsets (different slopes for each section of the cut) will be included in their templates.) Only if it is a one-off construction do they mark and wrap it by hand.

(tubes ? "Pipe" should NOT be used for structural components because it is made to different standards for tolerance, straightness, and out-of-round than structural components)

Are you planning on this being CNC-machined?

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