WJMG Blog

When the exact composition of a metal matters, appearance alone cannot provide the answer. At WJMG, the ARL 3460 Optical Emission Spectrometer (OES) is one of the tools used for chemical analysis of base metals, weld metals, and a range of alloys. By identifying the elemental composition of a sample, the instrument can provide valuable…

Fasteners may be small compared with the structures, equipment, and assemblies they hold together, but their performance can directly affect safety and reliability. Fastener testing evaluates bolts, studs, nuts, anchors, and related components to determine whether they meet required mechanical properties, material specifications, and performance expectations. For manufacturers, fabricators, contractors, engineers, and failure investigators, testing…

Safety in welding starts long before a weld is completed. While skill, technique, and code compliance are important, the work environment around the welder matters just as much. Welding, soldering, brazing, and joining processes can create fumes, gases, heat, and exposure risks that affect workers directly involved in the task as well as people nearby.…

Weld failure analysis plays a critical role when a welded component does not perform as expected. Whether the issue involves a structural weld, pressure system, tank, pipeline, vehicle component, or fabricated assembly, identifying the true cause of failure is essential for safety, compliance, and long-term reliability. Rather than relying on assumptions, this process provides a…

Chemical analysis can play a critical role long before a part fails or a fabrication issue becomes expensive. In metal fabrication, repair, and forensic investigation, it is easy to assume the material in front of you is exactly what the paperwork says it is. But when the wrong alloy ends up in a weldment, assembly,…

An NDT written practice is one of the most important documents supporting any nondestructive testing program. While it often sits behind the scenes, this document defines how inspection personnel are trained, qualified, certified, and evaluated. When one is missing, outdated, or poorly written, companies can face audit findings, rejected work, or serious challenges after a…

In welding and joining technology, hardness testing is one of the quickest ways to check how a weld and its heat affected zone reacted to heat input, cooling rate, and any heat treatment. It can flag areas that became unusually hard, confirm repeatability across multiple joints, and point you toward the right follow up test.…

Achieving your welding certification can open doors in structural, pipe, aerospace and other welding environments. But many welders face setbacks when the test doesn’t go as planned. At WJMG, we believe understanding common pitfalls is key to turning your welding certification attempt into a success. Here are the typical mistakes we see — and how…

In the world of industrial quality assurance and structural integrity, bolt testing plays a pivotal role. At WJMG Forensic Metals Experts, every fastener is evaluated to ensure it performs under real-world demands. But what exactly is bolt testing, why does it matter, and how does it fit into a full mechanical and metallurgical testing program?…

If you’re considering a career in welding or looking to advance your existing skills, welding training in Denver is one of the smartest investments you can make. Welding continues to be in high demand across Colorado and the nation, with industries ranging from construction and aerospace to energy and manufacturing seeking skilled and certified welders.…