×
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

Heat treatment can propagate the existing crack ?

thread281-388954

Heat treatment can propagate the existing crack ?

Heat treatment can propagate the existing crack ?

(OP)
Hi!
Can anyone help me about the followings:
If there is a crack on the engine crank pin and having hardness about 665 HB, Then what would be wise-----machining the crank pin before heat treatment to remove the cracks or perform heat treatment before machining.

If the heat treatment is done first whether the cracks can propagate further since the crankshaft elongate during heat treatment.

I will be grateful if anyone can help me in this regard.

N.M. Al Masum
NEPC Plant
Narayangonj
BD

RE: Heat treatment can propagate the existing crack ?

Machine first. Heat treat, re-examine the grooved area to verify the crack did not re-appear.

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
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close