THE CHALLENGE

A customer we had been working closely with was manufacturing stainless steel valve seal bodies using a Mori Seiki SL250 CNC Lathe. The valve body required a 60-degree inclusive angle to have a 16 Ra microinch (0.4 Ra) finish. Previously, the company achieved this surface finish by using a boring bar with a light cut at a slow feed. This process was inconsistent and produced too many rejected parts, so they turned to us for advice.

OUR SOLUTION

Our suggestion was to use a CB297-00 Single Roll Burnishing Tool made by Elliott Tool Technologies. The customer mentioned that this tool was easy to set up and program, especially since the burnishing process is similar to the boring process.

FINAL RESULTS

Here were the final burnishing statistics:

  • Speed: 1,800 RPM
  • Feed rate: 0.001” per rev (0.3mm/rev)
  • Feed rate: 0.001” per rev (0.3mm/rev)
  • Surface finish after burnishing: 8-16 Ra microinch (0.2-0.4 Ra)
  • 27 Second Cycle Time

Elliott Tool Technologies’ single roll burnishing tool produced a consistently high-quality surface finish, eliminating scrap parts. Cost savings for the customer were a result of:

  • Reduced cycle time
  • Reduced frequency of inspection
  • Elimination of rejected components

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MONAGHAN TOOLING GROUP

30 N. Clinton Street
Dayton, Ohio 45402
Toll-Free: 1.800.732.4565
Phone: 937.253.7706
Fax: 937.723.7702

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