| Part
Size: |
There
is theoretically no limit to the maximum size
of part that can be produced by MIM. Traditionally
MIM parts have been small but with recent technical
and economic advances SMP has broken the rules
and produces parts up to 228mm (9.0") in
length and section thickness up to 30mm (1.2").
|
| Thickness: |
Cross
sectional thickness is possible from .4mm (.015")
up to 30mm (1.2") A thickness less than .4mm
or more than 30mm is possible in special circumstances.
|
| Tolerance: |
The
metal injection molding process can hold a general
tolerance of ± 0.005" per each linear
inch. The part geometry, however, has some affect
on tolerances due to the an-isotropic nature of
the shrink. Special control measures can be utilized
for controlling critical features up to ±
0.003" per each linear inch. |
| Weight: |
Economical
weight for steel parts rarely exceeds 250 grams,
though it varies significantly depending on the
chosen material. Designers need only remember
that part weight drives cost thus minimization
of the part weight should remain a priority. |
| Quantity: |
Metal
injection molding is a method of mass production.
Typical tooling costs are equal to those expected
in traditional plastic injection molding thus
annual volumes economical to produce typically
exceed 10,000 parts per year. Depending on the
application, there are exceptions to this guideline.
We encourage you to contact us to evaluate your
specific needs. |
|
