The investment cast process is considered a "net shape" or "near net shape"
process. That is, most any configuration can be investment cast without having
significant additional tooling or fabrication. Therefore the key, to the
economical use of this process is to fully utilize its flexible capabilities and
incorporate as much added value into the cast piece as possible. Compared to
this process, there is no other metal working process that provides the design
freedom and variety of alloy selections of investment casting.
Other Key Benefits of Investment Casting:
• Low Initial Tooling Costs: Tooling costs, averaged over parts produced, are
often lower that other manufacturing tooling costs. Signicast builds all tools
to last the program lifetime. All Signicast tools are made with 7075 T-6
aluminum versus the industry standard 6061, which is a softer and less reliable
material. Signicast utilizes wear plates and gibs in the tool's slide areas for
longer life, ease of repair, and greater performance. Signicast also offers
rapid prototyping so customers can evaluate their component pattern before going
• Consistency: The investment casting process at Signicast provides
consistent process control and repeatability that are maintained from batch to
• Tolerance Control: The most accurate tolerances of any casting processes,
over a wide variety of alloys, are achieved by investment casting. We believe
that early involvement and input by our engineering staff allows customers to
overcome traditional casting tolerance issues and produce a component that is
100% conformance to specifications.
• Eliminates Material Waste: Investment Casting is the best casting process
for low scrap and waste rates. Since investment castings are cast to
specifications, there is little to no machining needed.
• Design Flexibility & Capability: Investment casting allows you to have
freedom in design flexibility for external and internal configurations.
Signicast has the ability to pour over 100 different alloys so you are not bound
to a limited number of alloy choices.
• Design Enhancements: Investment casting does not have any draft
requirements like other casting processes. Logos, numbers, and letters can be
cast for added features to your component. Also, gear and thread profiles can be
produced with accuracies of +/- .004” per .5” of pitch.
• Surface Finish Enhancement: Investment castings provide you with a finer
surface finish that any other casting process. Roughness (Ra), as measured by
stylus instrument, will be 125 microinch maximum for parts that weigh 0.5 pound
or less. Larger parts may be rougher that 125 microinch. For extra fine surface
finishes, Signicast has in-house secondary finishing operations to perfect the