INVESTMENT CASTING SPECIFICATONS
MIN. PART SIZE - NO PART IS TOO SMALL
MAX PART SIZE* - 4 X 4 X 8 IN.
MIN. WALL THICKNESS** 0.012 IN.
MAX. WALL THICKNESS*** 0.375 IN. / ZINC ALLOY
MAX. WALL THICKNESS 0.750 IN. / ALUM. ALLOY
TOLERANCES - DEPENDS ON PATTERN MAKING PROCESS, AND CAN BE EASILY ADJUSTED IF PRINTING PATTERNS.
* LARGER PARTS EVALUATED ON INDIVIDUAL BASIS
** THINNER WALLS EVALUATED ON INDIVIDUAL BASIS
*** THICKER WALLS EVALUATED ON INDIVIDUAL BASIS
to burnout or not to burnout?
Seybert Castings utilizes a custom investment casting process. It is well suited for small, intricate zinc and aluminum alloy castings, as well as medium sized parts. Ideal quantities range from 1 to thousands of parts.
As with any traditional investment casting process, burnout patterns are used. We utilize our in-house 3D printers for pattern making and offer two resolutions.
Both resolutions offer extremely high detail and accuracy. Typically, a larger part is better suited for our standard resolution, and an intricate or small part would be produced in our highest resolution.
The greatest advantage to this process is that no tooling is required. As a result, we can make one part quickly, adjust tolerances, and move right into the completion of the project. It also enables us to provide a first sample for customer review.
As an alternative to 3D printed wax patterns, we also produce in-house RTV molds generated from SLA masters, and inject wax which becomes our sacrificial pattern for investment casting.