07
Aug
Understanding Grain Structure and Direction when Plate Bending
The crystals or ‘grains’ of which iron and steel are composed are built up of exceedingly small cubes built up of atoms. The length of each side of a cube is less than a tenth of a millionth of an inch, too small to be seen under even the most powerful microscope, but what can be seen are irregularly shaped crystal or crystal-grain, and each is built up of a huge number of cubical units.
