December 11, 2007
By: John Wallace
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.
Weisgram Metal Fab replaces multiple stand alone lasers with the automation river system from Mitsubishi Laser. Weisgrams’ River system includes 8 lasers with 322 shelves that can hold two million pounds of raw material. It is the second largest Mitsubishi automation system in North America.
From the Web: Remembering Rosie; GM invests; new jobs; subpar growth; and Uber’s economic role - by Vicki Bell
Web articles for fabricators—A tale of two Rosies; GM to invest billions; new jobs in Chattanooga; and the current and future economy.
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