Whether you need to measure dimensions or perform some sort of flaw detection on sheet, tube, or pipe, you'll find what you need in this technology area. It discusses measuring coordinates, diameters, and hardnesses; flaw detection using eddy current, ultrasonic, radiographic, and X-ray systems; and using a few other equipment types, such as vision systems and material composition analyzers.
January 11, 2011
Welders may recognize that when porosity is present, the cause isn’t always the shielding gas, welding filler, or operator error. It can be caused by the steel production method, which can introduce porosity and other flaws.
October 11, 2010
Tube and pipe producers and fabricators who are familiar with the conventional encircling coils used in eddy current testing might be interested in learning more about this technology. Eddy current can be used on a variety of product shapes and does more than detect cracks. It can detect relative hardness and hardness changes (good for verifying heat treatment) and the presence or absence of physical features such as splines and threads.
June 7, 2010
Bellingham Technical College launched its Welding Rodeo in 2002 to spur enrollment and raise its public profile. Now one of the premier welding competitions in the Pacific Northwest, the event has helped the school triple its enrollment in welding and expand its program/skill offerings.
July 17, 2009
Eddy current testing does more than detect product defects. When used with a proper monitoring system on a mill staffed by highly trained operators, it can help to optimize the mill's efficiency. The first part of this two-part article covers eddy current system principles.
June 10, 2009
Eddy current testing does more than detect product defects. When used with a proper monitoring system on a mill staffed by highly trained operators, it can help to optimize the mill's efficiency. The first part of this two-part article covers eddy current system principles
May 19, 2009
Woolf Aircraft Products Inc. developed an inspection tool that can beused to measure a leg length, as well as the actual throat of a weld.Using these two known measurements, quality assurance personnelthen can determine the actual size and the convexity and concavity ofa specific fillet weld.
May 18, 2009
Infrastructure is defined as the basic physical systems that serve a community's population, such as roads, bridges, utilities, water, and sewage. These systems are essential for enabling productivity in the economy, so it is crucial to ensure they are fit for use. Nondestructive testing (NDT)...
March 11, 2008
If you are a copper tube producer, you know you need to use nondestructive testing methods, but you might not be aware of all the possibilities in how they are used. First off, should you check the material before or after it is processed? What are the advantages and disadvantages of each testing point? Should you test it at both places? And second, can testing do more than help you prevent shipping poor-quality product?
December 11, 2007
Determining whether a tube seam has a partial bond can be difficult with standard ultrasonic or eddy current techniques. However, multifrequency, probe-based eddy current equipment can detect poor-diffusion bonds in nonferrous materials. Using a penetrating field to reflect a signal off the planar structure of the weld works on ferrous materials.