This week’s blog is Part 2 in a 3-part series covering how the updated CWI Pre-Seminar can benefit specific groups of people. Today we’ll focus on those we call “The Determined,” who are looking to pass the CWI exam after falling short on their first attempt. In a nutshell, CWIs are tasked with ensuring the … Continue reading The Determined: Taking Another Shot at the CWI Exam
This week’s blog is part 1 in a 3-part series covering how the updated CWI Pre-Seminar can benefit specific groups of people. Today we’ll focus on those we call “Hopefuls.” These are people who have decided to take the CWI exam for the first time. If you’re unfamiliar with the CWI Pre-Seminar, or aren’t up … Continue reading The Hopefuls: CWI Exam First Timers and the Updated Pre-Seminar
M.C. Balmforth (The Materials and Engineering Group, LLC) dives into some of the more technical aspects of shielding gas properties and selection for GTAW. In this presentation, Mr. Balmforth discusses a handful of important arc/plasma properties (thermal conductivity, electrical conductivity, and current), and clears up some common misconceptions regarding what variables determine heat transfer to … Continue reading Selection and Properties of Shielding Gases Used for Welding
Jesse Martinez, on behalf of his colleagues (Dr. P. Burhardt, Dr. C.E. Cross, and A.N. Duffield) at Los Alamos National Laboratory, discusses the results of an experiment that explored the relationship between oxygen and welding arc stability. This experiment was conducted in response to issues the research team encountered with GMA welds on aluminum in … Continue reading The Role of Oxygen in Arc Stabilization of Aluminum GMA Welds
If you’re reading this, it’s a safe bet that the American Welding Society’s Certified Welding Inspector (CWI) program has impacted your career in one way or another. As welders, your handiwork has been inspected, and (hopefully) accepted, by a CWI on countless occasions. Some of you may have been mentored, or even introduced to the … Continue reading You Spoke, We Listened: Everything You Need to Know About the NEW CWI Pre-Seminar
Todd Evans (Vanderbilt University) discusses friction stir welding of additively manufactured aluminum alloys. Recognizing the lack of published information for materials produced using additive manufacturing, Vanderbilt’s Welding Automation Laboratory (VUWAL) and NASA teamed up to research the weldability of various aluminum alloys used in a wide range of aeronautical applications.
Byungchul Kim (Hyundai Heavy Industries) discusses how post-weld heat treatment (PWHT) affects intergranular corrosion in stainless steel weldments. This presentation focuses on 308 and 347 stainless steels, widely used throughout the petrochemical industry as filler metal for weld cladding in hydrotreatment and hydrodesulphurization reactors.
Think back to that point in your life when you were trying to land your first job, or when you decided you wanted to transition into a new career or field. During that time, chances are you probably heard the following bit of idealistic advice dispensed a time or two: Find a job you love … Continue reading Another Day, Another Dollar: How Welding Wages Stack Up Across America
Bob Bosworth (Elite Welding Solutions, Inc.) presents a comprehensive look at grounding for automated welding. Mr. Bosworth discusses electricity basics, the challenges associated with automated weld grounding, essentials for welding ground – deployment, and engineering and design-based best practices and solutions. The presentation also includes some recent technological advancements, and a Q&A session.
David C. Tung (The Ohio State University) presents his research on various superalloys (Super 304H, Inconel 740, Haynes 282, etc.) that are used in power plant construction. Because high-efficiency/low-emission power generation relies on the ability of these metals to withstand remarkably intense conditions, Mr. Tung’s lecture focuses specifically on Post-weld heat treatment and stress relaxation … Continue reading Stress Relaxation Cracking Testing and PWHT of Superalloys for Power Plant Construction