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CNC Machined Aluminum Sand Cast Engine Control Valve Assembly for the Heavy Truck Industry

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CNC Machined Aluminum Sand Cast Engine Control Valve Assembly for the Heavy Truck Industry

A client in the heavy truck industry contracted us to fabricate engine control valve assemblies from aluminum castings. The component was sand cast by us and machined to the required specifications that were supplied by the customer as a CAD print. CNC milling and turning operations were used to fabricate these components to tight tolerances of ± 0.001". We fabricated the components to MIL-STD-276 standards and produced 7,200 pieces annually. All fabricated parts were subjected to in-process inspection, which included CMM inspection and air decay leak test. The components were also thermal deburred and impregnated.

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Product Description The engine control valve is used in the heavy truck industry

Capabilities Applied/Processes Sand Casting of the Raw Part
CNC Machining to Finish Each Piece
Thermal Deburring
Precision Assembled for Complete Product

Equipment Used to Manufacture Part Turned On a Lathe
Milling Machine

Tightest Tolerances ± .001"

Material Used Aluminum

Typical Machining Operations Sand Casting:
  • Produce Blank Part to be Machined
CNC Machining:
  • Threads Turned on a Lathe
  • Slots cut on CNC Milling machine

In Process Testing Performed Bore Gages, Thread Gages, Depth Micrometer
Various Micrometers & Bore Scope
CMM Inspected
Air Decay Leak Test

Production Volume 7,200 Pieces Annually

Industry for Use Heavy Truck

Delivery Time JIT

Standards Met MIL-STD-276
Customer Supplied CAD Print

Product Name Engine Control Valve Assembly

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