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High Temperature Alloy Reaming

Posted by Beth Bauer - October 13, 2016

This Tool Tip features useful tips on high temperature alloy reaming.  Check out our Tool Tip below for recommendations with materials, tool geometry, pre-hole details and application details.

MATERIALS

  • Nickel Based - Incoloy 901, Inconel 625 & 718, Haynes, Hastelloy, Waspeloy
  • Iron Based – A-286, Aermet
  • Cobalt Based – Stellite,
  • NOTE – These materials are resistant to heat. This means any heat generated when reaming these materials will end up in the chip or cutting tool.

TOOL GEOMETRY

  • Up sharp Cutting Edges
  • Number of Teeth
    • Under .250” = Max 4
    • Under .500” = Max 6
    • Under .750” = Max 8
  • Positive Helix
  • Positive Rake

PRE-HOLE DETAILS

  • .004” Stock for full size range for solid carbide reamers.
  • Use a high performance solid carbide drill for best hole quality prior to reaming.
    • Roundness of .0006” or better.
    • Hole diameter to maintain .004” Stock allowance.


APPLICATION DETAILS

  • Coolant at 8 to 10 percent ratio to provide adequate cooling.
  • Feed Rates
    • Under .250” - .0015” IPR
    • Under .375” - .0025” IPR
    • Under .500” - .0030” IPR
    • Under .750” - .0040” IPR
  • Speeds
    • 60 SFM – 80 SFM
Hopefully these tips will help you along in your high temperature alloy reaming.  If you still need more help, feel free to contact our Engineering and Technical Support teams at 800.248.8315.

Topics: Tool Tips