ing: Computer models capable of calculating the weld-pool shape; visualization of Marangoni flow, including its reversal and oscillation; a theory on the effect of surface-active agent beyond Heiple’s; quenching of the weld pool to reveal the microstructure development during welding; suppression of solidification cracking with a wavy crack path; weakening of the partially melted zone by severe grain-boundary segregation; prediction and elimination of liquation-cracking susceptibility; fundamental concepts regarding dissimilar filler metals; and macrosegregation mechanisms beyond Savage’s. The full text of Kou’s lecture was published in the November 2012 Welding Journal beginning on page 287-s. The AWS/SkillsUSA U.S. Invitational Weld Trials. Eleven competitors from five countries competed throughout the exposition in the AWS/SkillsUSA U.S. Invitational Weld Trials. Attendees witnessed firsthand the competition spread over four days of welding using multiple welding processes. The judging criteria comprised safety, print reading, penetration and fusion, distortion control, selection of filler metal, manipulative skills, destructive and nondestructive testing, welding machine parameter setting, and general appearance of the project. Some of the welding required X-ray reviews and hydrostatic pressure tests to 1000 lb/in.2 to verify the integrity and quality of the welds. Six national SkillsUSA welder finalists (Fig. 2) competed alongside five international welders representing Australia, Canada, United Kingdom (2), and Russia. The top three U.S.A. competitors were 1st place winner Alex Pazkowski from Washtenaw Community College; 2nd place Andrew Cardin from Valley Technical High School; and 3rd place Tanner Tipsword from Wyoming College. The overall top three finishers were Alex Pazkowski (Gold), Andrew Cardin (Silver), and Canadian Nick Kitt (Bronze). The top three U.S.A. competitors will advance to a “tune up” at the AIDT Training Center in Mobile, Ala., a division of the Alabama Department of Commerce that encourages economic development through job-specific training. Past TeamUSA welding medalists will train the three finalists to give TeamUSA the best chances of earning a medal in Germany. These top three welders will compete for the final TeamUSA 30 JANUARY 2013 position during the 2013 Daytona 500 Speedweek. That winner will not only represent the United States at the 42nd World- Skills Competition in Leipzig, Germany, July 2–7, but will also receive a $40,000 scholarship from the Miller Electric Mfg. Co., administered through the AWS Foundation. Tuesday, November 13 Plummer Memorial Education Lecture. Professor Yoni Adonyi, LeTourneau University, Longview, Tex., delivered the Plummer Lecture for 2012 — Fig. 3. His talk was titled Welding Engineering Education and Training — National and International Perspectives — Confessions of a PhD Who Can Weld. From his formal educational beginning in Romania to his PhD in welding engineering from The Ohio State University, Adonyi has led a life of varied experiences. His welding experiences began in the summers between college semesters and were enhanced while in the Israeli military, where he became proficient with the GTAW process welding aluminum. Knowing how to weld has made him a better teacher. “The practical experience I learned from gas tungsten arc welding made me better aware of the fundamentals of the process and where improvements could be made,” he said. His teaching career began when he became aware of an opening at LeTourneau University. Even though he was on a successful career path working in the research department of U.S. Steel at the time, he was willing to take a 40% pay cut to teach. “It was a calling I felt I had to fulfill,” he said. “It was an opportunity to give back to society.” Adonyi was also concerned about the lack of qualified welding engineers in the workforce. He cited statistics from a survey that indicated only 30% of those in industry who hold the title of welding engineer have the educational background for that position. This group lacking in formal education for a welding engineer included mechanical engineers and materials engineers, as well as welders who have come up through the ranks. His mission is to improve those statistics, but he feels formal education is under attack in the information age. “There is so much information available on the Internet that some mistake this as enough for a formal education,” he said. “They think all knowledge can be accessed electronically,” he continued. In Fig. 2 — The U.S.A. instructors are (back row, from left to right) Stan Nichols, Glenn Kay, Scott Holcomb, Dan Rivera, Matt Hayden, and Christian Beaty. The U.S.A. participants are (front row, left to right) Tanner Tipsword (3rd place in the U.S.A. competition), Alex Pazkowski (1st place in the U.S.A. competition and Gold Medal overall), Jordan Decker, Andrew Cardin (2nd place in the U.S.A. competition and Silver Medal overall), Drew Swafford, and Michael Miller.
Welding Journal | January 2013
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