Hi Joe, That process was developed by the British auto industry for the purpose of putting the brake flanges on rear axle forging. They called it friction welding.
Jamie Swan - Northport, New York
Joe Bender-Zanoni wrote:
> Sunshine had a proprietary process of spin welding two halves to form a hub.
> Each flange and center section were spun in opposite directions and the heat
> achieved the weld. Then the hubs were machined. This allowed near net shape
> forging and could be the process Hugh is referring to that allowed
> production flexibility..
>
> I had a display board showing the steps and a similar board showing Nitto's
> process in the shop I ran.
>
> Great hubs. Even the cheap ones had integrity.
>
> JoeBender-Zanoni
> Great Notch, NJ
> ----- Original Message -----
> From: "henox" <henox@icycle.net>
> To: "Dennis Young" <mail@woodworkingboy.com>;
> <classicrendezvous@bikelist.org>
> Cc: "Henox" <henox@icycle.net>
> Sent: Tuesday, November 18, 2003 1:31 PM
> Subject: Re: [CR]unfamiliar parts
>
> >
> >
> > Sanshin developed a unique technology ( for the time) that allowed them to
> > produce short runs of high flange, low flange, or combinations of high and
> > low flanges with a variety of spoke hole drillings. I don't know how they
> > did this, and have always wondered if it may have been by a very early
> > implementation of CNC programmed lathes.
> >
> > Unfortunately I never got to visit the factory but I did meet the company
> > officials on several occasions. I'm sure I've got some of their catalogs
> > kicking around here somewhere and I wish they were still in business.
> >
> > Hugh Enox
> > La Honda