|
Click to view
NADCA forms C-8-1 and C-8-2
Generally, you
should consider die castings whenever you require or desire:
- A high volume
production run.
- A low volume
production run where the amortized cost of tooling is economic.
- Accuracy.
- Excellent
dimensional stability.
- A long service
lift.
- Contours
and complex design features.
- Close tolerances.
- High strength.
- Textures,
finishes, surface patterns.
- Eye appeal,
harmonizing with mating parts.
- Inserts of
other metals or non-metals.
- Integral
fastening elements – rivets, bosses, studs.
- External
or internal threads.
- External
undercuts or projections on sidewalls.
- Blind holes
or design variations from interchangeable cores.
- Parts must
withstand continuous temperatures between 300° and 600°F.
- Electrical
or thermal conductivity.
- Heat dissipation.
- Minimal secondary
operations – machining and assembly.
- Several parts
cast as a single component.
- Weight reduction.
- High strength-to-weight
ration.
- High corrosion
resistance.
- Machinability.
- Lower unit
cost.
Here are some general purchasing guidelines:
- Sketch a
preliminary drawing of the component and the assembly it’s
used on.
- Call us.
We may be able to make suggestions for producing the part at a
lower cost with maximum utilization of the die casting process.
- Show us the
proposed product and method of assembly. We can suggest alloys,
engineering and finishing die cast operations. It will be helpful
to have your engineers present.
- Ask us for
a copy of the NADCA Product Standards. It includes prevailing
industry practices, commercial, engineering, metallurgical and
quality standards. See "FREE DESIGN CD".
- Define your
casting requirements by filling out NADCA forms C-8-1
and C-8-2. These
forms are included at the end of this section. Form C-8-1
covers surface condition, finish, flash removal, pressure tightness,
flatness, dimensions, quality control and packaging. Form C-8-2
covers parting lines, surface preparation, plating, anodizing,
painting, exposure, and appearance.
- Provide us
with estimated weight and quantities to improve the accuracy of
your quotations. Request that all companies quote using the same
quantities and weight. This will give greater uniformity to the
quotations. Actual weight differences can be adjusted later.
- Give us both
anticipated annual and release requirements. This will help us
choose the proper tooling and it will affect your quotation. It
may be possible to add cavities at a later date.
- Include a
sample part if one exists. Tell us if a prototype is desired.
- Inform us
of the method your firm uses to evaluate tooling expenditures.
It will be helpful in quoting if we know how your company will
evaluate this project, i.e., whether tool cost or part cost is
more significant.
- Visit our
plant.
- Allow sufficient
lead time for the preparation of your dies, trim dies or additional
tooling required for your components. We will inform you of lead
time requirements.
- We can be
a valuable member of your manufacturing team during the design
and pre-production stages. This will be mutually advantageous.
- The die casting
process may improve your components. And ultimately your end product.
The die casting process can save you money over components you
are now purchasing.
- Buy die cast
components. For greater reliability. And lower unit cost.
- Die casting
has become a seven billion dollar industry by replacing components
produced in other materials or by other processes. Are you missing
a good opportunity if you are not considering the die casting
process for your manufacturing need?
Click to view
NADCA forms C-8-1 and C-8-2
|
