Laser Welding SLM non precious

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adamb4321

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Hi,

I've got a case that is a screw retained implant bridge made in laser sintered non precious, I didn't rate the fit on the model and the surgeon didn't rate the fit in the mouth.

Against advise from the company that made the slm bridge the surgeon has sectioned it and asked me to laser weld.

I don't usually have issues when welding but this case is proving to be very difficult.

It tacks together nicely an gives a nice passive fit with no rocking, however, during the filling stage it keeps warping really badly requiring re-sectioning and starting over, having done this about 6 times with no improvement I'm getting a bit fed up.

Does laser sintered np need a different protocol to other alloys? Any suggestions welcome.
 

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