Carl Cross of Los Alamos National Laboratory discusses 5 metrics related to solidification cracking susceptibility that are used to predict alloy weldability, explain cracking mechanisms, and facilitate alloy development.
Non-destructive testing (NDT) is a group of methods used to evaluate the soundness of welds without destroying the part under examination. These NDT methods are used by certified welding inspectors (CWIs) to make sure that welds meet the in-service requirements prescribed by relevant codes and contracts. It’s an important job because everyday millions of people … Continue reading NDT Training Made Easy
Earlier this year, President Trump signed a memorandum calling for a plan to ensure that work on new and existing pipelines be performed with “materials and equipment produced in the United States, to the maximum extent possible and to the extent permitted by law.” This is welcome news given the precipitous decrease in American manufacturing … Continue reading The Meaning of Manufacturing and Why it Matters
EWI researchers worked with shipyards to identify the soundness and productivity of aluminum joints welded with four different types of GMAW.
Experiments show that FE-based alloys welded with the FCAW process have higher wear resistance when no gas shielding is used.
AWS competitions often involve flying sparks and the crackling sound of welding. The AWS Poster Competition is different. It’s designed to test a welder’s ability to investigate, think creatively, and communicate effectively; skills that employers say are often lacking in their job candidates. According to Thomas Lienert, AWS vice president and chair of the Technical … Continue reading AWS Poster Competition Tests Skills Employers Need
Children’s books about welding aren’t exactly a dime a dozen. So I was delighted to have recently come across the Metal Man by Aaron Reynolds. This beautifully illustrated book is nothing less than a lyrical ode to the creative spirit inherent in welding. It tells the story of a seemingly ordinary summer day in the … Continue reading The Metal Man: An Inspiring Children’s Book About Welding and the Power of Art
Researchers examine operational, metallurgical, and in-service issues related to duplex stainless steels, including discussions on multipass welding and brazeability.
Resistance spot welding (RSW) has been a mainstay in the automotive industry for many years. In fact, the typical car body contains 4500 spot weld joints. As a result, the American Welding Society’s (AWS) D8 Committee on Automotive Welding has long published periodically updated editions of D8.1 Specification for Automotive Weld Quality – Resistance Spot … Continue reading New AWS D.8.2 Code Responds to the Rise of Aluminum in Auto Manufacturing
Researchers show how multi-pass friction stir welding (FSW) can be used to overcome the limitations imposed by the length of the tool pin in order to join thicker materials.