RGS #20 Oct 2009
| October 07, 2009 01:27PM |
|
Just returned from a wonderful visit to Colorado. Vance Jct., Como, Platte Canon, Durango, CRRM, Sublette - never enough time to see everything.
Anyway, 20's test coupons were on my desk and stress relieving increases the strength of the frame metal by almost 10%. The old material failed outside the weld in both cases. Prior to going to Colorado I cobbled together a wooden binder using the CNC and a specific measuring system on the frame lugs. Oddly enough, it worked really well and should speed up the laborious task of fitting the binders.
Wooden binder in the mill.
Wooden binder on first fitup.
Test coupons. The closer one is as welded - failed at 39,406 psi; The other one failed at 42,866 psi. Both failures in parent metal.
Anyway, 20's test coupons were on my desk and stress relieving increases the strength of the frame metal by almost 10%. The old material failed outside the weld in both cases. Prior to going to Colorado I cobbled together a wooden binder using the CNC and a specific measuring system on the frame lugs. Oddly enough, it worked really well and should speed up the laborious task of fitting the binders.
Wooden binder in the mill.
Wooden binder on first fitup.
Test coupons. The closer one is as welded - failed at 39,406 psi; The other one failed at 42,866 psi. Both failures in parent metal.
| Subject | Author | Posted |
|---|---|---|
|
Linn W. Moedinger | October 07, 2009 01:27PM |
|
myork | October 07, 2009 01:38PM |
|
bonefish | October 07, 2009 03:26PM |
|
Samart | October 07, 2009 06:13PM |
|
Linn W. Moedinger | October 08, 2009 06:15AM |
|
bonefish | October 08, 2009 07:07AM |
|
Linn W. Moedinger | October 08, 2009 09:19AM |
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488 stops for water at Los Pinos tank on closing day Oct. 1979. Photo courtesy Don Richter
The NGDF was started by Don Richter and is currently operated in his memory by Nathan Holmes and others. Others who have contributed to the upkeep of this board are (in no particular order): Charles McCandless, Everett Lueck, Ted Wilton, Cole Adams, James Bane, John Moellmer, Jon Bentz, Linn Moedinger, lloyd lehrer, Rod Jensen, John Craft, Steven Forney, Herb Kelsey, Bill Ramaley, Russ Sperry (El Russo Loco), Josh McNeal, John West, Jim Armstrong, Bob Bergstrom, Greg Scholl, Blake Forbes Doug van Veelen and Mark Fuller.