زبری، صافی سطح
quality of machined surface is characterized by the
accuracy of its manufacture with respect to the
dimensions specified by the designer.
Every machining operation leaves characteristic
evidence on the machined surface. This evidence in
the form of finely spaced micro irregularities left
by the cutting tool. Each type of
cutting tool leaves its own individual pattern
which therefore can be identified. This pattern is
known as surface finish or surface roughness.
1. Roughness : (زبری)
consists of surface irregularities which result
from the various machining process. These
irregularities combine to form
2. Roughness Height :(ارتفاع زبری)