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  1. Chalked

    Thermite reactions and how to avoid them.

    Do you put water in your dust collector barrel ? Do you cut a lot of rusty materials. If the answer is no. Then I would tell you while anything is possible the odds and likely hood of you getting a thermite reaction are astronomical. If you look into all the factors that have to be present...
  2. Chalked

    Amada FONT 4000 watt

    As jjl1210 said above adding a B cut will help eliminate some nozzle wear.For an NT the 103B. Would be your B cut in your Pierce conditions for thick go. 0.08 ( 3/16th and above. For thinner gauge. I would go 0.03-0.05. Keep in mind. B cut will effect your lead in. If it is too short your B cut...
  3. Chalked

    Cutting conditions for 1/2" steel

    having one bad edge depending on where that edge shows up on the part, could be a sign of a degraded lens. but could be other things. is it throwing a sparks/ spray on top of the sheet. where it welds in, is the molten metal bubbling on top of the sheet ? those can be signs of a degraded lens...
  4. Chalked

    New Amada Laser

    Chillers put off a lot of heat. we put Duct work on our chillers, to vent the heat out in the summer, but also made it to where we can redirect the heat back into the shop during winter. and with 4 chillers they pretty much heat half of a 100,000 sq ft building. as far as laser placement, not...
  5. Chalked

    Finding the focal point for 7.5" Lens on C02 Laser

    like I said, at least I think I said ? I don't know this laser. my experience is with Amada's . but this laser doesn't have saved M codes for materials and focus. you have to manually move your focus for every material you cut ? if you do have to manually adjust your focus. is there any way to...
  6. Chalked

    Cutting conditions for 1/2" steel

    your year of laser doesn't have a 7.5 lens ? I could post my conditions but they are for a 7.5 lens
  7. Chalked

    Amada FONT 4000 watt

    I would cut it with a 2.0 single. the wear is most likely coming from blow back on the pierce, you can try a type 6 pierce ( single bounce ) to get that initial material out of the way. can also up your nozzle gap on the pierce. but wouldn't go drastic. just small adjustment. stainless doesn't...
  8. Chalked

    Fiber CW vs QCW mode

    in general. yes it will. but not because the laser is asking for more gas. but because generally pulse cutting is done at a slower rate then continuous, there fore the beam is on longer. I can't speak to the specifics of your machine but the consumption difference for your machine would probably...
  9. Chalked

    Z-Wire Break

    are you using an external or the internal Z sensor wire. either or I'm surprised you're having a connection issue. on our fo3015's we have had to replace the Z sensor wire cable on them, but as far as the cone goes, it was replaced due to just general wear. not sure if you do these things or...
  10. Chalked

    Finding the focal point for 7.5" Lens on C02 Laser

    my reply doesn't help you. but man your situation sounds like a royal pain in the ass. and honestly I am clueless to the blue flame process. on an Amada it takes about 2-5 minutes to set your base focus. and it is never touched again until the lens needs replaced. For amada's base focus is...
  11. Chalked

    Fiber CW vs QCW mode

    generally pulsing is used to reduce heat on your thicker materials, small profiles, corners. and your lead in, so you would only really need it if you were pushing the machines material thickness limits. or cutting very small detailed parts were heating was an issue
  12. Chalked

    Cutting 7Ga mild steel with nitrogen

    well if ya find the answer post it. by years end we are suppose to be getting a 6000watt fiber laser. management tells me it will cut our 7 ga and 1/4 inch 4 times faster with nitrogen. then our 4000watt co2 lasers. but still anytime I can ramp up speed. it's a win. back to the issue at hand. I...
  13. Chalked

    Cutting conditions for 1/2" steel

    Looking at your Picture, I see 2 things, incorrect edge data, and heat issues, the part looks to be about a 2 inch square. are you cutting whole sheets of that part ? if so that is a lot of heat contained to one area. heat sequencing the nest/program will help a lot. can you post your edge data
  14. Chalked

    Cutting 7Ga mild steel with nitrogen

    what speeds are you currently cutting at ? If you're looking to get up to the 140ipm average that oxygen cuts you may be seeking the impossible. At our shop we nitrogen cut 7ga P&O at speeds of about 70-80ipm on ext, and around 60ipm on internal. on amada FO3015 NT and 4020NT lasers. we have...

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