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TCDC Email
TCDC Email


TCDC provides die cast aluminum and magnesium prototypes - fast!

TCDC can take your solid model and supply a short run of die cast prototypes in little as 4 weeks, or sometimes less.

If you need die-cast style parts on a shorter timeframe, TCDC has a broad source base for numerous prototype methods, and can supply metal prototype parts within a few weeks. In addition to metal prototypes, TCDC also has the capability to provide plastic prototypes using our fused deposition concept modeler. Plastic prototypes can be produced in a matter of days or even hours. Contact TCDC to get started.

Dedicated Mold Bases

TCDC casts prototype parts and some low-volume production work in TCDC-owned dedicated mold bases. This reduces tooling lead time because it is not necessary to build a whole die cast tool – only the cavity blocks (or “inserts”) that fit into the mold base.

Contact TCDC for information regarding size restrictions, and to discuss your project details.

Rapid Inserts*

Traditionally, the detailed shape of a die cast cavity block is created by spark erosion using shaped electrodes in an Electric Discharge Machine. This is a time-consuming process. Advancements in recent years have allowed more and more cavity blocks to be cut efficiently with high-speed CNC machining, and cuts time from prototype projects.

* This method of high speed machining applies to both Pre-Hard inserts and Hardened inserts (listed below):

Pre-Hard Tool Steel

To achieve a long life (in the 100,000 shot range), die cast cavity blocks are heat treated and brought to a high hardness. Heat treating and the cavity preparation necessary after heat treat consume significant time. Where prototype needs are generally for smaller quantities (up to a few thousand), it is possible to use pre-hard (non-heat treated) tool steel to cut down lead time and cost.

Hardened Tool Steel

If a prototype project might turn into a production-volume project, it sometimes pays to build hardened cavity blocks. With design considerations these can then be re-used after the prototype run is over and put into the production tool.

Twin City Die Castings Twin City Die Castings

Twin City Die Castings Twin City Die Castings

Twin City Die Castings, Inc. - Minneapolis

Minneapolis, MN

Phone: 651-645-3611
Fax: 651-645-0724
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Twin City Die Castings, Inc. - Monticello

Monticello, MN

Phone: 763-271-5060
Fax: 763-271-5070
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Twin City Die Castings, Inc. - Watertown

Watertown, SD

Phone: 605-886-9448
Fax: 605-886-2489
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