Investment Castings FAQ

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  • What if I have a "problem part"? Can Milwaukee Precision Casting, Inc. meet my needs?

    Yes, we can provide solutions for many challenging, "problem" parts. In fact, investment castings is often the only answer to casting difficult parts economically. Let us know what your challenge is, and we'll help you find the right solution.

  • What are your precision casting tolerances?

    ±.005 per linear inch. Angular tolerance is ±1/2 degree. Typical finish is 120 RMS.

  • Is there an advantage to using investment casting for replacement parts?

    Yes, cast replacement parts made from higher tensile alloys cost less and last longer, reducing your downtime for lost parts.

  • Can Milwaukee Precision Casting, Inc. produce intricate part shapes?

    Yes. Our precision casting process allows us to manufacture intricate shapes that would be impractical or impossible to produce by conventional means. We produce complex parts with fine detail in one piece to 120 rms surface finishes.

  • Can you handle my unusual alloy requirements?

    Milwaukee Precision can cast all stainless steels, and a variety of other materials.

    • 300 and 400 series
    • 17-4 Ph
    • 15-5 Ph
    • Tool steels
    • High carbon and low carbon steels
    • Super alloys
    • Cobalt
    • Nickel base alloys
    • Bronze
    • Brass

    We can also use special alloys made to your specifications. In addition, certified chemical and physical analysis are furnished when necessary, as well as NDT.

  • Do you have the capabilities for large and/or small production?

    We have the flexibility to handle both large and small production runs. Milwaukee Precision Casting prides itself in meeting your specific requirements and deadlines.

  • What is Investment Casting?

    You can learn all about the Investment Casting Process by visiting our investment casting process page.

  • What are the benefits of Investment Casting?

    Investment Casting provides you with incredible design flexibility and reduced costs. Learn more by visiting the investment casting benefits page.

  • What are Milwaukee Precision Casting's part size capabilities?

    Milwaukee Precision Casting, Inc. specializes in both large and small castings - from intricate, miniature parts that are 1/10 of an ounce or less to large investment castings of up to 50 pounds.

  • What are investment castings used for?

    Investment casting is an industrial metal forming process used to create wax models, then the models are replaced with melted metals. Firearm components, oil & gas components, medical parts, and more utilize the investment casting process.

  • What is the lost wax process?

    The lost wax process is using a wax model and pouring molten metal into the mold. After, the wax model is melted and drained away.

  • What materials are best for investment casting?

    Most metals that can be melted and poured can be used for investment casting. The most common metals are stainless steel, nickel-based steel, cobalt-based alloys, brass, bronze, and copper.

  • What is the difference between sand casting and investment casting?

    Sand and investment casting have similar processes, but sand casting cannot always make small, intricate parts. Sand casting also often utilizes heavier weight limits, sometimes greater than a ton.

  • Is investment casting expensive?

    Generally, investment casting has an extensive labor and cost associated with the wax molds, which cause higher costs than forged parts or sand casting.

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