Page 440 - Carmex - Inch Catalog 2022
P. 440

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                                                       Supercut Solid Carbide Mills





            Tip #4: Coolant





            •  Coolant can dramatically affect the performance of cutting tools, and the cost of

              your operation.


            •  Cutting fluids perform two basic functions:

              1) To reduce heat generated during the cut

              2) Lubricate the tool and reduce friction between the chip and the tool


            •  Water-based coolant (emulsion) is the best option.



            •  Coolant improves the surface finish and helps force chips out of the flutes.







            General milling tips





            •  Less flutes = more chip space, allows a deeper cuts (bigger Ae), suitable for

              roughing/semi-finishing, slotting.


            •  More flutes – stronger core, higher stability, less chip space, shallower cut must

              be used, suitable for super finishing especially for titanium, nickel and super-

                alloys.


            •  For best surface quality and tool life, run-out of the machine and the holder must

              be reduced as close to zero, minimum overhang should be used.


            •  Climb vs. conventional milling – rule of thumb is “thick to thin” (chip thickness),

              so most of the time climb milling would be the first choice.








              B14-30
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