On Thu, 31 Dec 2009 20:58:27 -0800, you wrote:
>I thought a pipe threader might be a simple application, but it too has >the part flip or dual spindle problem. I wonder how the current pre-made >pipe sections are made. To me, it's bazaar to think that it is cheaper >to have someone in China cut and thread pipe and ship it to the other >side of the world. I wonder where these products usually come from. Yes - it is cheaper to have them made in China, I've worked for a couple of pipe fitting manufacturers, all have gone bust. Brass fittings are made from castings or forgings. The machining was done with custom automatic Swiss type lathes. They can bore out a 3/4 fitting , and cut a thread at better than one per second. >The black and galvanized pipe fittings tend to be fairly large so the >part primitives would be fairly large and take a long time to machine. What do you call a long time? Took 5 seconds for 3inch BSP thread in steel on our old threading machines. Steve Blackmore -- ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
