Case Study: IRU (Internal Recessing) in Cast Aluminum

SUMMARY OF RESULTS

THE CHALLENGE

A manufacturer was interpolating to machine internal grooves on a part made out of cast aluminum. With their current process, cycle time was 270 seconds per part. The goal was to reduce cycle time utilizing the Internal Recessing Unit (IRU). 

The Previous Solution:

OUR SOLUTION

We recommended the Internal Recessing Unit (IRU), manufactured by Elliott Tool Technologies. The IRU is designed specifically for the application to machine each internal groove at once. 
IRU recessing for cast aluminum

FINAL RESULTS

After working with the Monaghan and Elliott team the manufacturer was able to drastically reduce cycle time from 270 seconds to 27 seconds per part. This resulted in a yearly cost savings of $29,160. 
Pin bores application example at Monaghan Tooling

Pin Bores on Automotive Part

Material: Ductile Iron

Tooling: Rambo Speed Drill with GTX Coating

Advantages: 

  • Tool reduction from 2 to 1
  • 5 seconds saved per part
  • Annual cost savings of 312 machining hours

 

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Connecting Rod application at Monaghan Tooling

Connecting Rod

Material: C70, Steel

Tooling: Drills with S4 geometry (coated) Spotfacing tools, Z=6 (coated)

Advantages: Approx. 3000 holes (drilling)

Speed Drill S2 - Application Example - Monaghan Tooling

Injection Pump

Material: 42CrMoV4, Steel

Tooling: Special drilling tool with S2 geometry 

Advantages: Extended tool life and process stability