Contact US

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

Laser cutting carbonsteel

Laser cutting carbonsteel

Laser cutting carbonsteel

My question is that I have a 2kw fiber laser machine and would like to cut lv1.5 material either with oxygen(Left picture) or air(Right Picture) (12bar compressor) but the oxygen is different in size and the cut is almost good in air but the cut is not perfect. The bottom of the material remains a bit cluttered and I don't like it. Is there anyone who can find a solution? Attaching pictures. Thank you in advance for your help!

RE: Laser cutting carbonsteel

Cutting with air always requires quite a high gas pressure and much more power than with Oxygen.
Sometimes a focus adjustment can help also.
In truth, I think everything affects everything else, probably you need a wide enough kerf to get a high enough gas velocity through the cut to blow the molten steel clear of the edge of the cut.
A wider kerf requires more power, and probably a bigger spot size.
Spot size is function of lens focal length, properties of the raw beam, and position of the focus waist w/respect to the material.
Generally, you find a way to conduct cutting tests quickly and zero in on the combination of parameters needed with your machine and your material.
Usually those tests don't require an entire part, just test a few representative features on some scrap material. Then you use that info to tailor your part's cutting parameters.

Jay Maechtlen

RE: Laser cutting carbonsteel

by the time you have an air system that can properly support a laser as an assist gas you'll have spent about the same as the cost for a N2 generation system. You have to also consider the power costs of high pressure compressed air/N2 generation.

Chris Krug http://krugtech.com/
Maximum Up-time, Minimum BS

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