|
|
DIAMONDBACK DVH: 45 Degree Variable Helix – Primarily for high-speed machining of aluminum, and other non-ferrous materials including brass and bronze alloys.
The Diamond Back Rougher is designed for maximum Metal Removal Rates (MRR) in Non Ferrous Applications. Although the charts below depict a maximum chip load per tooth (IPT) value, your maximum may be lower due to machine horsepower, machine torque, toolholder and/or workholding. The “General Operating Range” is based upon 1X diameter (ADC / DOC) in full diameter (RDC / WOC) SLOTTING. The minimum chip loads remain constant for all applications, however, the maximum chip loads can be increased for side milling applications in finishing, heavy roughing & light roughing. We've successfully run our 3 flute, 3/4 diameter end mill in a slot 1.5" deep at at 14,000 RPM and up to a .040" chip load per tooth. Keep in mind the not all machines have the torque or horsepower necessary to handle these types of cuts.
|
|
Diamond Back Speeds & Feeds for "N" Non Ferrous Materials
You can also find this table on Page 33 of our catalog
|
One of the most common causes of chatter with our tools is running tools with TOO LIGHT of a chip load. Most chatter problems can be fixed by INCREASING the chip load per tooth (IPT)
Heavy Roughing (Side Milling) Defined: ADC (Axial Depth of Cut) = up to 1X dia.diameter RDC (Radial Depth of Cut) = 30% – 50% of diameter Light Roughing (Side Milling) Defined: ADC (Axial Depth of Cut) = up to 1X diameter RDC (Radial Depth of Cut) = 15% – 30% of diameter Finishing (Side Milling) Defined: ADC (Axial Depth of Cut) = up to 1X diameter RDC (Radial Depth of Cut) = 4% – 15% of diameter |
|
|
Imperial
SFM = RPM X .262 X Tool Diameter RPM = SFM X 3.82 ÷ Tool Diameter IPM = RPM X IPT (CLPT) X Number of Flutes IPT = IPM ÷ (RPM X Number of Flutes) MRR = RDC X ADC X IPM (a.k.a. CIM) |
