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ASC 320
Small Bushings: ASC 320® 
Code:
3014
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The Challenge
A small job shop manufactures small bushings made from 625 Inconel round bar stock for the aerospace industry. They use an Okuma Cadet LNC-8C with low pressure coolant to manufacture their products.

Tools used:
  • Cobalt drill (19/64″ diameter)
    • Peck cycle
    • 40 SFPM
    • 514 RPM
    • 0.006 IPR
    • 3.08 IPM
    • Tool life = 12 parts
  • Carbide tipped reamer (5/16″ diameter)
    • 38 SFPM
    • 475 RPM
    • 0.00.6 IPR
    • 2.85 IPM
    • Tool life = 50 parts
The customer was concerned about cycle time and tool life, and they also experienced difficulty during the drilling process.
The Solution
Allied recommended ASC 320 solid carbide drill.

Tool used: ASC 320 drill (item #335E3125A21M)
  • No peck cycle
  • Tool life = 150 parts
The Advantages
The ASC 320 reduced the customer’s cycle time and cost of production.
  • Eliminated the reaming operation
  • Eliminated the peck cycle
  • Reduced cost-per-hole from $1.17 to $0.50
  • Overall savings = $0.67 per part
  • Total cost savings = $99.90 or 43%