ALVAN Reamer Cuttting Ring Style
Body Relief Valve: ALVAN® Reamer 
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The Challenge

The customer manufactures hydraulic rams and cylinders, and they are machining a body relief valve made from 4140 alloy steel. They are using a Nakamura TW-10 lathe running with synthetic thru-tool coolant.

Unsatisfied with their current production process, the customer needed a solution to increase tool life.

The ALVAN® Reamer helped the customer in multiple areas: it increased tool life, decreased cycle time, and improved the surface finish.


Product: ALVAN Cutting Ring Reamer
Objectives: Increase tool life
Industry: Heavy equipment
Part: Body relief valve
Material: 4140 Alloy steel
Hole Ø: 0.3625" (9.2075 mm)
Hole Depth: 1.800" (45.72 mm)

The Solution
The ALVAN Cutting Ring Reamer
  • AL3610I02797
Measure Competitor ALVAN Reamer
RPM 650 2000
Speed 62 SFM (18.898 M/min) 190 SFM (57.912 M/min)
Feed Rate 0.003 IPR (0.0792 mm/rev) 0.003 IPR (0.0792 mm/rev)
Penetration Rate 1.95 IPM (49.53 mm/min) 6.0 IPM (152.4 mm/min)
Cycle Time 1 min 23 sec
Tool Life 80 parts 400 parts

The Advantages
The ALVAN Cutting Ring Reamer provided:
  • 61% cycle time decrease
  • Increased tool life
  • Decreased production costs