Comments on: NUMMI Tour Tale #2: The Power of Reynolds Wrap http://www.leanblog.org/2005/10/nummi-tour-tale-2-power-of-reynolds/ Mark Graban's leanblog.org - Lean Healthcare, Lean Thinking, Lean Manufacturing, Toyota Production System Thu, 09 Feb 2012 22:59:58 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Anonymous http://www.leanblog.org/2005/10/nummi-tour-tale-2-power-of-reynolds/#comment-3528 Anonymous Thu, 08 May 2008 18:27:00 +0000 http://leanblog.bigbigdesign.net/2005/10/nummi-tour-tale-2-the-power-of-reynolds-wrap/#comment-3528 The welding spatter can be eliminated if proper welding equipment is used and the parts fit properly. Electric servo guns are the answer on several levels. My guess is the material on the racks is not spatter from weld guns however. It is most likely over spray from paint applications or glue applications.<br/>Some of the racks are immersed in solutions of primer paint, or other compounds. The welding spatter can be eliminated if proper welding equipment is used and the parts fit properly. Electric servo guns are the answer on several levels. My guess is the material on the racks is not spatter from weld guns however. It is most likely over spray from paint applications or glue applications.
Some of the racks are immersed in solutions of primer paint, or other compounds.

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]]> By: Troy http://www.leanblog.org/2005/10/nummi-tour-tale-2-power-of-reynolds/#comment-2824 Troy Sun, 25 Nov 2007 03:51:00 +0000 http://leanblog.bigbigdesign.net/2005/10/nummi-tour-tale-2-the-power-of-reynolds-wrap/#comment-2824 Without adding more cost, I wonder if they can use some sort of flux. May be they could integrate the flux onto the foil. May be high temperature Teflon/Pyrex coated foil on the spot-welders. They would have to experiment. <br/><br/>I think the spot-welder arms themselves are copper (conducts the needed amps the best for a spot-weld). Not sure if the metal structure of the arms could be changed.<br/><br/>Any chemist out there? As with any weld, there is a chemical reaction going on. What could reduce free flying particles? Is there away to get the particles not to fly or bond back to the source?<br/><br/>Troy Lee Without adding more cost, I wonder if they can use some sort of flux. May be they could integrate the flux onto the foil. May be high temperature Teflon/Pyrex coated foil on the spot-welders. They would have to experiment.

I think the spot-welder arms themselves are copper (conducts the needed amps the best for a spot-weld). Not sure if the metal structure of the arms could be changed.

Any chemist out there? As with any weld, there is a chemical reaction going on. What could reduce free flying particles? Is there away to get the particles not to fly or bond back to the source?

Troy Lee

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]]> By: Anonymous http://www.leanblog.org/2005/10/nummi-tour-tale-2-power-of-reynolds/#comment-401 Anonymous Thu, 23 Mar 2006 18:05:00 +0000 http://leanblog.bigbigdesign.net/2005/10/nummi-tour-tale-2-the-power-of-reynolds-wrap/#comment-401 Actually, it is most likely that what they were brushing off was not grease, but welding spatter. During the welding process, all those sparks you see flying through the air are actually small burning spheres of metal. Those spheres were likely sticking to the frame. They cannot be eliminated from the process. If it was just gresae, they could use a pressure washer to remove. Actually, it is most likely that what they were brushing off was not grease, but welding spatter. During the welding process, all those sparks you see flying through the air are actually small burning spheres of metal. Those spheres were likely sticking to the frame. They cannot be eliminated from the process. If it was just gresae, they could use a pressure washer to remove.

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]]> By: Chris http://www.leanblog.org/2005/10/nummi-tour-tale-2-power-of-reynolds/#comment-185 Chris Wed, 30 Nov 2005 08:39:00 +0000 http://leanblog.bigbigdesign.net/2005/10/nummi-tour-tale-2-the-power-of-reynolds-wrap/#comment-185 I've seen a similar set-up like this at the Audi plant in Ingolstadt, Germany. They were using aluminum wrap to prevent the racks from being covered in some sort of glue (?) in the body shop area, if I remember correctly.<br/><br/>Audi practices TPM, of course.<br/><br/>But, again, could one push farther to the root cause there? I’ve seen a similar set-up like this at the Audi plant in Ingolstadt, Germany. They were using aluminum wrap to prevent the racks from being covered in some sort of glue (?) in the body shop area, if I remember correctly.

Audi practices TPM, of course.

But, again, could one push farther to the root cause there?

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