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!

*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

[Help] usability of cutting blade

[Help] usability of cutting blade

[Help] usability of cutting blade

Good morning,

I need your help.

Two (hardener ss) metal cutt of blades ( V blade profiles) cutting/shearing copper wire in serial production. After 20k of cuts, for 1 day production, brand new blades are dulled/blunted. I think is to fast blunted.

Is there a possibility to estimate life of the new blade till they will dont cut hole wire x section?
I think all boundary conditions are known, same as gap between blades.

Do you think that additional some TiNi coat on blade will increae friction resistance?
In which way I can improve life of the blade?

Thank you for your any suggestion.

RE: [Help] usability of cutting blade

No idea for relability?
Any help?  

RE: [Help] usability of cutting blade

Blade failures are strictly a wear mechanism, and should be described by the Arrhenius equation, whose independent variable is temperature.  You need to make some controlled measurements to isolate the various factors that contribute to the activation energy of the failure.  You can try cooling the cutting blade, which ostensibly should reduce the wear.  Lubrication might be a simple way to find out if there are frictional heating contributions.

Has this always been a problem?  Has the cutting process changed over the years?  It would be unsurprising to find out that the cuts per day has doubled over the years, resulting in a possibly an 8-fold decrease in life.  20,000 cuts per shift is about 0.7 cuts per second.

Can you borrow or rent a thermal camera to look at the temperatures you're achieving during the cutting process?


FAQ731-376: Eng-Tips.com Forum Policies

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! Already a Member? Login


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