9
9
Opening Drill
Opening Drill
Fluid Transfer Line Fittings: Opening Drill® / Revolution Drill® 
Code:
6505
Share on Facebook    Share on Twitter    Share on LinkedIn    Email a friend
The Challenge
The customer manufactures fittings for fluid transfer lines made from 304 Stainless Steel. They are using an Okuma lathe with synthetic coolant at 75 PSI.

Tool used:  Kennametal IC drill
  • Hole diameter = 5.0"
  • Hole depth = 9.5"
  • 1400 RPM
  • 0.003 IPR (0.08 mm/rev)
  • 4.2 IPM (106.7 mm/min)
  • Cycle time = 43 minutes
  • Tool life = 5 holes
  • Cost per hole = $936.13
The customer wanted to expedite the holemaking process because once the drilling was finished they needed several boring bars to complete the job.
The Solution
Allied recommended the Revolution Drill and the Opening Drill.

Tools used:
  • Revolution Drill (R46X35-150L) to make the hole
  • Opening Drill (OP4-1L-SS2.0) to enlarge hole to proper size
Parameters:
  • 306 RPM
  • 0.0045 IPR (0.11 mm/rev)
  • 1.377 IPM (35 mm/min)
  • Tool life = 8 holes
  • Cycle time = 14 minutes
  • Cost per hole = $130.02
The Advantages
The combination of the Revolution Drill and the Opening Drill eliminated the need for boring bars, which decreased the cycle time. This also greatly reduced the customer’s cost per hole.
  • Reduced cycle time by 67.4%
  • Decreased cost-per-hole from $936.13 to just $130.02
  • Saved over $800 per hole
  • Total cost savings = 86%