On Jan. 30, 2026, the U.S. Army Corps of Engineers - Far East District’s Mr. Shin, Chang, Engineering Technician, Quality Assurance Branch (QAB), led a welder and brazer qualification tests for contractors at a project on Camp Humphreys, South Korea. Candidates welded thick pipes using Gas Tungsten Arc Welding (GTAW), a process that joins metal with a hot tungsten tip and gas to make a clean, precise weld. They also brazed 3-inch copper pipes in horizontal and vertical uphill positions, showing they could work in any orientation. The brazing required heating the pipes to about 1,200 degrees Fahrenheit. After visual inspection, samples were tested by bending, X-ray, cutting and peeling to confirm joint strength, qualifying the workers, and certifying the welding and brazing processes. (U.S. Army photo by Monique Freemon)
| Date Taken: | 01.29.2026 |
| Date Posted: | 04.01.2026 03:49 |
| Photo ID: | 9593464 |
| VIRIN: | 260130-A-CQ138-1425 |
| Resolution: | 6720x4480 |
| Size: | 4.91 MB |
| Location: | CAMP HUMPHREYS, KR |
| Web Views: | 1 |
| Downloads: | 0 |
This work, Behind the Scenes: Welder and Brazer Qualification Tests [Image 3 of 3], by Monique Freemon, identified by DVIDS, must comply with the restrictions shown on https://www.dvidshub.net/about/copyright.
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