SIGMA OEM

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Cream Ridge, NJ

Many castings have demanding post-processing requirements such as high-precision machining or specialized testing specifications such as pressure/leak testing or radiography. SIGMA OEM is your one-stop supplier, taking full responsibility for all requirements and deliverables, from material quality to finishing requirements. Our competencies in castings include: Sand, investment, die, specialized processes for the full range of ferrous and nonferrous materials.

Investment Casting Power Pages

Investment Casting

Investment Casting

Investment casting is a metal working process that uses a ceramic shell built over a wax pattern to produce parts with extraordinarily uniform and smooth surfaces. The wax pattern is produced from an aluminum die.The final products of investment casting are without parting lines, mold half marks, or other deformities...

Lost Wax Casting

Lost Wax Casting

Lost wax casting is a casting process that uses a wax pattern to create a ceramic mold for creating a part or product design. It has been known over the years as lost wax or precision casting due to its accuracy in recreating parts with precise tolerances...

Types of Casting Processes

Types of casting processes

The casting process is an ancient art that goes back several thousand years to the beginning of written history. The archeological record has finds that document the use of the casting process over 6000 years ago around 3000 BC or BCE...

Castings & Forgings

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