An undesirable coil condition in which the material appears dished. It can be caused in the cold rolling process if too much pressure is placed on the center of the strip, overstretching and lengthening the center of the material. If the material is rolled, the bumps simply transfer to the other side or pop in and out like an oil can.
TRUMPF FABTECH 2014 Preview
See the products TRUMPF will have on display at FABTECH on Nov 11-13 in Atlanta. TRUMPF will introduce a wide array of new products and technologies, including the world premiere of the TruLaser 2030 fiber laser cutting machine, in addition to new laser cutting, punching and press brake technologies, laser marking, laser welding, and power tools. Visit our FABTECH web site: www.us.trumpf.com
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