Machined Aluminum Alloy Casting

At Joseph Robertson Foundries we provide our aluminum casting clients with a complete onsite solution that includes heat treating and Co-Ordinate Measuring Machine (CMM) verification as needed on our foundry grounds to save time and avoid outsourcing costs. We also perform CNC machining to prepare your pieces for delivery in an assembly-ready state.

Aluminum Casting Process

Our aluminum castings are manufactured through the use of either a gravity permanent or sand cast mold. The type of mold needed for use in your finished products will be determined based on your needs and product specs. We use A356.2, A319.0 and Almag 35 alloys for our aluminum casts and sizes range from 24″ x 24″ x 6″; up to 30 lbs. Here at Joseph Robertson Foundries we are an ISO-9001-2008 certified organization providing you with the best quality management possible.

When to Specify Aluminum

Your product specs determine which mold type we select for your machined aluminum casting, either gravity permanent or sand cast. Based on your needs, we choose from among A356.2, A319.0 or Almag 35 casting alloys. The resulting machined aluminum casting can range in size up to 24″ x 24″ x 6″ and weigh as much as 30 lbs.

Prototype Aluminum Casting

We begin with a prototype aluminum casting for your approval before going into full production in our ISO-9001-2008 certified facilities. Prototyping makes the tooling and final pieces more affordable. Included in our prototyping service are the temporary tooling and pre-production tooling necessary to verify the final casting and machining requirements for your products.

CNC Machining

We draw on more than 50 years of machining experience to meet your tightest tolerances to within +0.0005 inch. From selecting the right mold and machined aluminum casting alloy to completing your project on budget and on time, you can rely on JRF for quality results. Our machining equipment includes:

  • 4 Mori Seiki CNC high-speed machining centers with twin pallets
  • 1 Vertical OKK 4-axis machining center
  • 2 Mori Seiki CNC lathes
  • 1 Hardinge CNC Lathe
  • 1 Mitutoyo CNC coordinate measuring machine