West, BruceShull, Jim2022-07-162022-07-1619721972https://doi.org/10.31096/PNAA-BW-051https://hdl.handle.net/10177/189831960's mode, similar to slide 5.Welded metalEducational use is permitted without permission. Permission is required for additional uses. See http://library.willamette.edu/external/commons/conditions_of_use/ for more information.http://rightsstatements.org/vocab/InC-EDU/1.0/Image