SAND CASTING TOLERANCES
On the following pages is a discussion of common
tolerance issues related to sand casting. These standards are excerpted
directly from the Aluminum Association's handbook titled Standards for
Aluminum Sand and Permanent Mold Castings with the permission of the
Aluminum Association. We are grateful for their help.
Bear in mind that these are general industry standards
and many foundries, including St. Paul Brass and Aluminum
Foundry, are capable of better. Consult your foundry for more
specifics. Also remember that the if you get too fussy
the cost may go up.