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.
- 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.
Allied recommended ASC 320 solid carbide drill.
Tool used: ASC 320 drill (item #335E3125A21M)
- No peck cycle
- Tool life = 150 parts
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%