52 What are the corrugations for?
Description
This article is from the Woodworking FAQ Collection 1, by multiple authors.
52 What are the corrugations for?
Some say that they are intended to reduce the surface area of the
sole and thus friction, but this seems unlikely since friction is
a function of force, not surface area.
The most common answer is that they are intended to somehow break
the suction that forms between two flat planes. This suction
increases force and thus friction.
Others have said that the corrugations are merely a gimmick.
Their only real value comes into play when one is flattening the
sole. Then the amount of iron to be removed is reduced--similar
to the scalloped backs of Japanese chisels.
Continue to:
My Books
