Superion Solid Carbide Burnishing Drill
Superion Cast Aluminum Burnishing Drill
Baffle plates: Superion® 
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The Challenge

The Odds Aren’t Stacked Against You.

Our customer, who manufactures baffle plates for the military and defense industry, needed to reach at least 100 IPM (2450 mm/min) while drilling through five plates tack welded together that are each 1/2" (12.7 mm) thick.

With 10,000 holes per stack plate assembly, the customer needed to produce a tight tolerance hole with a 32 Ra finish consistently through all five plates. The competition was running at 95 IPM (2413 mm/min) and only achieving a 63 Ra surface finish.

This customer reached out to Allied for help in achieving the results they needed. Using the cast aluminum (CAB) Superion burnishing drill—developed with a unique point, web, and cutting edge to significantly improve hole finish and tolerance—the customer was able to achieve the desired surface finish and tolerance while running over 100 IPM (2450 mm/min).

In addition to achieved surface finish and penetration results, the Superion drill also dramatically increased the tool life from 2000 holes to 10,000 holes—a 400% increase. With Allied, the odds will never be stacked against you. Call us to help you find the right tool for the job.


Product: Superion CAB burnishing drill
Objective: Increase penetration rate
Industry: Military/ defense
Part: Baffle plates
Material: Wrought aluminum alloy (22 RC)
Hole Ø: 0.3" (7.62 mm)
Hole Depth: 2.5" (63.5 mm)
Tolerance: +0.008" (0.2 mm)
Surface Finish: 32 Ra

The Solution
Superion Solid Carbide Burnishing Drill
  • CAB (cast aluminum) geometry:  210520-9
Measure Competitor Drill Superion Drill
RPM 10,186 12,000
Speed 750 SFM (228.6 m/min) 1000 SFM (304.8 m/min)
Feed Rate 0.01 IPR (0.254 mm/rev) 0.008 IPR (0.203 mm/rev)
Penetration Rate 95 IPM (2413 mm/min) 101.86 IPM (2587 mm/min)
Cycle Time 21.57 sec 21.47 sec
Tool Life 2000 holes 10,000 holes

The Advantages

The Superion solid carbide drill provided:

  • 400% increase in tool life
  • Increased penetration rates
  • Decreased cycle time
  • Improved surface finish
  • Lower cost per hole