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

Etching / engraving

Etching / engraving

Etching / engraving

I am trying to etching / engraving some letters and numbers on steel using the 3015LVP/40CFX Mitsubishi laser. I couldn’t get the etching even I reduced the output power to 50W at 15-20%. Is it possible to etch on steel?

RE: Etching / engraving

What did happen? Did it make no mark at all or did it burn through?

RE: Etching / engraving

Maybe the scan/feed rate is too low. Most times I've seen marking the laser is passing over the surface too rapidly to see.

That looks like a machine not intended to do engraving.

RE: Etching / engraving

Not sure how applicable this could be - but if one were to interpose a slotted disk that rotated at a high speed in the laser path it could redirect the energy elsewhere and turn what looks like a continuous wave laser into a pulsed one. It could be put most anywhere. If the surface of the disk was not flat then the energy would be dispersed and more easily dissipated. Or if it is very flat, a highly cooled target could be used.

To clarify the options - the disk axis could be at 45 degrees to the beam, so the energy would be reflected at 90 degrees to the beam; also, any other angle is possible. The disk might be dropped into position only when required or mounted such that a detector would force the slot to align with the beam when the continuous output was required.

RE: Etching / engraving

Engraving with a 4kW laser? You have a long road ahead of you. Systems like that are intended for cutting, not engraving.

Dan - Owner

RE: Etching / engraving

@MacGyverS2000: that’s what I told my supervisor but he insisted I should try. He contacted Mitsubishi and the guy over there told him to send the dxf file so he will code for us.

RE: Etching / engraving

i etch all the time with a 4kw laser but i do not use all the power

RE: Etching / engraving

Make sure your marking condition has the right bits on for marking under ADD FUNC they should be 00101100

In your program make sure you select the condition you set up for etching. For example Condition 4

M98P9008 (this is the etching program)
#501=104 (marking condition)

As far as settings you can start with
Power: 300
Freq: 300
Duty: 30
Feed: 120
Gap: .125
Gas P: .8

RE: Etching / engraving

@laserkatana: thanks

RE: Etching / engraving

parameter with old co2 amada 3kw
speed mm/min 6000 (+/- 1000)
power 1000w ( i try under 500w but with bad result)
hz 1000-1200 (1000 more strong)
duty :
18 with oxigen
22-25 nitrogen
30-40 nitrogen strong
20-30 air
pres. 0.1-0.15 mpas (1-1.5 bar)
h.nozzle 2-2.4 mm
no edge power control.

RE: Etching / engraving

@burex2: thanks

RE: Etching / engraving

@laserkatana: I tried to etch on stainless steel (0.040” thickness). If I set the parameters as you suggested, the etching is too light. If I increased the power to 450W and speed 200ipm then the etching is ok as my boss wants. The problem is that the plate/part is warped due to the heat. I etched lot of small double-line letters. I think that I have to reduce the power to 350W later to see if it helps. Do you have any suggestion?

RE: Etching / engraving

Increased the cutting speed then got what desired

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


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

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