For
the proper design of production tooling, pressure tightness, secondary
machining and
surface
finishing specifications must be understood in detail. Areas of the casting
subject to
machining
must be fully discussed at the outset, so that the die can be designed to
reduce to an absolute minimum the presence of porosity in those areas. Cosmetic
surface requirements for the casting will require specific steps in finishing
the cavities of the die.
These
are among the types of questions that the customer should be prepared to
discuss with the die caster while reviewing the supplementary checklist at the
end of this section.
The
Engineering and Design sections provide detailed treatment of the tolerancing
implications of various casting design features, as well as guidelines which
apply under differing casting conditions.
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