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RECOMMENDED CUTTING CONDITIONS
Work Material Hardness Grade Breaker Cutting Number Cutting Speed Feed per Tooth Width of Cut Pick Feed
P < 180HB VP15TF Dia. of Teeth (m/min) (mm/tooth) (mm) (mm)
(mm) 0.6 1.5 6
Carbon Steel & 40 3 250 (200 300) 0.55 1.2 5
Alloy Steel 200 (150 220) 0.55 1.0 5
FT & 32 3 200 (150 220) 0.55 1.5 5
0.5 1.2 3
& 25 2 0.5 1.0 3
0.55 1.5 5
& 40 3 250 (200 300) 0.5 1.2 3
3 180 (150 200) 0.5 1.0 3
Hardening Tool Steel < 300HB VP15TF FT & 32 2 180 (150 200) 0.6 1.5 6
for Cold Work Dies 0.55 1.2 5
0.55 1.0 5
& 25 0.6 1.5 6
0.55 1.2 5
& 40 3 200 (100 300) 0.55 1.0 5
Alloy Tool Steel < 300HB VP15TF FT & 32 3 150 ( 80 200)
& 25 2 150 ( 80 200)
K Tensile & 40 3 250 (200 300)
Cast Iron 3 200 (150 220)
Strength VP15TF FT & 32 2 200 (150 220)
< 350MPa & 25
Tensile & 40 3 250 (200 300)
3 200 (150 220)
Ductile Cast Iron Strength VP15TF FT & 32 2 200 (150 220)
< 800MPa & 25
a Revolution (min-1)=(1000Cutting Speed)(3.14Cutting diameter)
a Table Feed (mm/min)=Feed per ToothNumber of TeethCutter Revolution
(Note 1) The above cutting conditions are general guide lines. Adjustments maybe necessary depending on machine rigidity,
workpiece geometry and clamping.
(Note 2) A carbide shank extension is recommended to prevent vibrations.
Application of Breakers Application of Insert Grades
Cutting Light General Interrupted Cutting Light General Interrupted
Conditions Cutting Cutting Cutting Conditions Cutting Cutting Cutting
JM FT ST FH7020 VP15TF VP30RT
Breaker (First recommended) Grade (First recommended)
NOTES ON MACHINING METHODS ROTATING TOOLS
aHow to choose an appropriate diameter tool.
Machine plain surfaces with a larger tool and corner radii with smaller diameter cutters.
Cutting point
PMC PMC
Small type Large type
PMC
aRelation of the cutter diameter and corner R size of work piece
A guide for the smallest possible workpiece radius that can be machined is from 0.6 0.7 x diameter of the tool.
=CDo1rnxe0r.6R~0.7 Tool diameter Corner R
D1(mm) (mm)
PMC & 25 R > 17.5
D1 & 32 R > 22
& 40 R > 24
Adjust cutting conditions according to the set up.
*Smaller workpiece corner radii (only >0.5 x cutter &) may be possible
*by reducing the width of cut, speed and pick feed.
SCREW-IN ARBORS K118 K117
SPARE PARTS M001
TECHNICAL DATA N001
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