Defects
In hot rolling, if the temperature of the workpiece is not uniform the flow of the material will occur more in the warmer parts and less in the cooler. If the temperature difference is great enough cracking and tearing can occur.
Read more about this topic: Rolling (metalworking)
Famous quotes containing the word defects:
“All conservatives are such from personal defects. They have been effeminated by position or nature, born halt and blind, through luxury of their parents, and can only, like invalids, act on the defensive. But strong natures, backwoodsmen, New Hampshire giants, Napoleons, Burkes, Broughams, Websters, Kossuths, are inevitable patriots, until their life ebbs, and their defects and gout, palsy and money, warp them.”
—Ralph Waldo Emerson (1803–1882)
“One of our defects as a nation is a tendency to use what have been called “weasel words.” When a weasel sucks eggs the meat is sucked out of the egg. If you use a “weasel word” after another there is nothing left of the other.”
—Theodore Roosevelt (1858–1919)
“We should endeavor practically in our lives to correct all the defects which our imagination detects.”
—Henry David Thoreau (1817–1862)