Lay
Lay is a measure of the direction of the predominant machining pattern. A lay pattern is a repetitive impression created on the surface of a part. It is often representative of a specific manufacturing operation. The lay may be specified when it has an effect on the function of the part. Unless otherwise specified, roughness is measured perpendicular to the lay.
Read more about this topic: Surface Finish
Famous quotes containing the word lay:
“I lay upon my baby;
Ye little childer dear,
I looked on my cold baby
When the morn grew frosty and clear.”
—William Butler Yeats (1865–1939)
“Each truth that a writer acquires is a lantern, which he turns full on what facts and thoughts lay already in his mind, and behold, all the mats and rubbish which had littered his garret become precious. Every trivial fact in his private biography becomes an illustration of this new principle, revisits the day, and delights all men by its piquancy and new charm.”
—Ralph Waldo Emerson (1803–1882)
“It is desirable that a man be clad so simply that he can lay his hands on himself in the dark, and that he live in all respects so compactly and preparedly that, if an enemy take the town, he can, like the old philosopher, walk out the gate empty-handed without anxiety.”
—Henry David Thoreau (1817–1862)