D-K Manufacturing Corporation
NTSA Precision

CNC Machined Replacement for out of stock casting

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Stamping Aida
CNC Machined Replacement for out of stock casting
CNC Machined Replacement for out of stock casting

Putting our CNC milling experience to use, DK Manufacturing machined this replacement lever casting to replace an out-of-stock part. The lever is used in a large HVAC valve, and the customer required the single-piece order to be delivered within a week. Working from a CDA 360 brass base material, we used our Fadal 4040 VMC to complete the CNC machining processes, first CNC milling one side of the billet to profile shape, and then milling the other side to complete the profile. We also used vertical milling to drill and tap a 1/4" NPT for attaching the lever to the valve. The brass material was then finished to 32 RMS.

This lever was CNC milled to its final size from bar stock measuring 2-1/2" x 3-1/2" x 12". In keeping with the supplied customer print and requirements, tolerances including parallelism of .001" and perpendicularity of .002" were maintained, and SPC and CMM in-process inspections were utilized, both to ensure the high quality of the product and to meet the fast turnaround time.

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Project Highlights

Product Description
  • This lever is used in a large valve
Capabilities Applied/Processes
  • CNC Milling
Equipment Used to Manufacture Part
  • Fadal 4020 VMC
Overall Part Dimensions
  • Stock: 2-1/2” x 3-1/2” x 12”
Tightest Tolerances
  • Parallelism of .001”
  • Perpendicularity of .002”
Material Used
  • CDA 360 Brass
Max Material Finish
  • 32 RMS
Typical OperationsCNC Milling:
  • Mill shape from billet, side 1
  • Mill opposite side to finish profile

Vertical Milling:
  • Drill and tap 1/4 NPT
In process testing performedInspection: SPC
  • CMM Utilized
Industry for Use
  • HVAC
Delivery Time
  • 1 Week
Quantity
  • 1
Standards Met
  • Customer supplied print
Product Name
  • Lever
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