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Metal stamping involves forming a piece of metal with a dedicated piece of tooling and stamping the piece through a mechanical press. During the metal stamping operation, the upper die is attached to the ram and the lower die is attached to the stationary bolster. As the press is activated, the ram moves vertically towards the bolster to form the piece of metal over the lower die. Metal stamping presses can perform a diverse range of operations such as blanking, piercing, forming and drawing as well as combinations of these processes.
Secondary Processes
Plating
Plating is used for a variety of reasons including corrosion resistance,
solderability and wearability. The most common plating materials are gold,
palladium, nickel, and tin. Strips of metal can be pre-plated to avoid a
secondary process. Gold and other precious metals can be selectively plated
onto a strip and reels of finished parts can be control-depth dipped to
substantially reduce the plating costs. Strips of gold and other precious
metals can be bonded onto a strip as an inlay or cladding.
Each application requires a unique set of properties and best choice of
plating is most dependant upon a cost vs. performance analysis. Engineers
can assist in the selection of a plating material and process that best
matches each application.
Cleaning
A variety of cleaning options exist for preparing parts for heat treat,
plating or assembly. Individual parts and reels of parts are cleaned to
remove metal stamping oils and films.
Heat Treat
A heat treat process is used on products that require additional strength
after metal stamping. This process is used only when the formability of the
final product does not allow it to be formed or coined without cracking.
Therefore, the part is stamped in the soft state and then hardened.
Although the heat treat process may be required to achieve critical
performance properties, it is avoided whenever possible. Not only does it
add additional cost and lead-time to products, it induces additional
variation into the final part. A feature formed in the soft state will relax
during heat treat. The amount of relaxation varies from part-to-part and
from material lot-to-material lot, resulting in increased part variability.
Deburring
Although CPIM can meet most minimal burr requirements directly out of the
metal stamping die, deburring is available for parts that must be free of
sharp corners. Abrasive and chemical deburring options exist for all types
of products.
 Please contact Case Engelen at Titoma for more information, a quick quote, or other inquiries:
Telephone +886 2 2727 2089
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