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  #11  
Old 08-24-2017, 07:07 AM
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It's not a common system even in this day and age. I'd call this a 'semi-automatic' power source, so it has servo motors in three axis controlled by a joystick. This moves the laser pulse how the operator wants.

The filler rod is manually held, by hand. You really don't need to feed it, as the laser travels it basically uses rod as it goes. Just hold the rod, no feeding required.

Time for a new signature line!!
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  #12  
Old 08-24-2017, 11:46 PM
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Quote:
Originally Posted by greywynd View Post
It's not a common system even in this day and age. I'd call this a 'semi-automatic' power source, so it has servo motors in three axis controlled by a joystick. This moves the laser pulse how the operator wants.

The filler rod is manually held, by hand. You really don't need to feed it, as the laser travels it basically uses rod as it goes. Just hold the rod, no feeding required.

Time for a new signature line!!
What kind of eye/face protection do you use on something like that? Too tired right now to google the process, and prefer to get the info first hand when I can.
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  #13  
Old 08-25-2017, 12:22 AM
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The operator is looking through a microscope, and it is filtered/shielded so no additional protection required.

If someone is near/in the welding area, there are basically safety glasses that are specific filters for the exact wavelength of light. This particular laser has a focal length of just .012", closer or farther and the beam spreads out, losing power.

We then have a laser specific enclosure around the area, with an electronic interlock on the access door. If someone opens it while we are welding it triggers the e-stop on the welder shutting it down.

Really once you know the hazards, similar to other welding, it's overkill, but due to the average worker being in the area, it was better to overdo it.

Time for a new signature line!!
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  #14  
Old 11-01-2017, 03:29 PM
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Have some pics to add to this.

So, a knurled water line fitting ended up between the mould faces when the press went to close for the next cycle.

It damaged the parting line and edge of a high polish, stainless steel cavity. Though this work is part of what it was bought for, this was the first time we'd actually be putting it to use on the stainless.

Hopefully they post in order.

First is the damage along the edge.

Partially welded

Looking through the microscope, that's .020" diameter stainless steel filler rod.

Almost done. There was still a couple small marks (circled on polished surface) that needed some more polishing to be blended in. I circled along the edge the approxiamate area of the original damage.
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  #15  
Old 11-02-2017, 12:33 AM
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AFTER WORKING ON DANLY DIES THAT IS SOME PRETTY WORK . Not shouting just proud of your work .
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  #16  
Old 11-02-2017, 08:34 AM
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Thanks, that was a bit of a challenge to get dialed in, once there it went much smoother. Sad part of this welding is that, when all done, the weld gets ground, filed, polished whatever leaving no evidence of the actual weld bead itself.

I want to come up with some sort sort of small part to weld up, as a bit of a show piece etc. Have to think about what I can come up with.
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  #17  
Old 11-02-2017, 09:22 AM
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Business card holder?


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