Composite Profile of a Surface Is Your Most Powerful
Tool
Many of you have requested that I
put together a Tip or two on composite profile. I decided to
use something we are all familiar with - food. Let's say you
run a bakery. Customers have an expectation of how a loaf of
bread should "look". They expect to see a nice radius on the
top. They do not want to see the three loaves shown below. The
first is just a mess, the second is tall on one end and short
on the other and the third has a relatively flat top instead
of the radius we have all come to expect. The large profile
tolerance controlling the top of the loaf allows all of these
undesirable conditions. On the following illustrations the
profile tolerance has been revised to be a composite profile
tolerance.
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Possible
unacceptable loaves of bread according to the drawing
above. |
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| The goal is to
have loaves of bread with a large tolerance on the
height but better control of the orientation and
form.
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| Although this
Tip was about loaves of bread, I have had many customers
with parts that required similar controls. Composite
profile of a surface is the only way to clearly define
these
requirements. | |
