M6 Chipbreaker The all-round top performer for roughing and semi-finishing of steel

1. M6 Chipbreaker (new)
Leveling Steel Turning Solutions

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Safety First
Safety is our top priority
Emergency Exit
Emergency Number
Protective Equipment
Assembly Point
Alarm

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M6 Chipbreaker
The All-round Top Performer
For Roughing And Semi-finishing Of Steel
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M6 MOVIE

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M6 Chipbreaker – Features & Benefits
 Strong, double-sided chipbreaker
 Intended for semi-roughing and roughing of steel
 A well-balanced design combining excellent chip control and relatively low
cutting forces which provides reliable cutting action in both continuous as
well as interrupted cuts
 Well suited also for machining of ferritic and martensitic stainless steels and
ductile cast iron
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M6 Chipbreaker – Features And Benefits
 Negative double-sided chipbreaker
 Wide positive protection chamfer
 High positive rake
 Wide chip groove
 High edge strength
 Strong cutting edge attributes
 Better chip control & efficient chip
evacuation
 Lower cutting forces & low energy
consumption
 Dependable strong edges & high
resistance against chipping
 Reliable wear behaviour (both
crater and flank wear)
Result: Optimal tool life, excellent
productivity and versatility
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Reference: CNMG120408-M6;
Cross-section at nose.

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M6 Chipbreaker – Application Area And
Range
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In general steel applications
From SMG P1 to SMG P11
ap=1.0-8.0 mm
f=0.20-0.80 mm/rev
Steel machining
Main application area is steel machining.
The more reliable & smooth cutting action
improves tool life and chip evacuation on a
wide range of steel turning operations even
at higher feed rates and intermittence.
M6 Wiper
Allows even higher feed rates for productivity or superior part quality with better
surface finishes eliminating the need for finishing operations in many applications.
“wide working window of M6”

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M6 Chipbreaker – Application
Area And Range
Stainless steel machining
 M6 with Duratomic® grades makes it possible to machine stainless steels
 M6 in TP2501/ TP3500 are alternatives in ferritic and martenistic stainless
steels for intermittent cuts as well as mixed production productivity in
austinitic stainless
Cast iron machining
 M6 in Duratomic TK2001 improves reliability and tool life for ductile cast irons
and other challenging cast irons
 M6 in Duratomic TP0501 improves toughness in difficult grey cast irons while
M6 in Duratomic TP1501 provides a good back up in ductile cast irons
machining
Duratomic grades
 Duratomic grades enhance productivity and life time of the cutting edges with
M6 geometry
 M6 is available in several Duratomic grades, including TP0501, TP1501,
TP2501 and TP3500 for steel operations
Seco chipbreaker M5 and MR7
 Overlaps with the “wide working window” of M6 with comfortable spread on
both sides
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M6 Chipbreaker – Application Area
 Typical industry segments where M6
can provide a substantial benefit
include general machining, automotive,
bearings and pumps.
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Typical components
Pulley wheels
Pump parts
Valves
Shafts
Sleeves
Flanges
Wheels
Gears
Hubs
Housings
Caps
Bearings

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Wear resistance Toughness
Speedcapability
TK2001
TP2501
TP3500
TP1501
TP0501
P M K
P M K
KP
P K
P K
*M6 in further existing grades is available only in its old design
M6 Chipbreaker – New Available Grades*
TP0501, TP1501,TP2501, TP3500 And TK2001
M6 – medium to roughing steel
with better chip breaking and
lower cutting forces.
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M6 Chipbreaker – Insert Range
TP0501, TP1501, TP2501, TP3500, TK2001
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M6 Chipbreaker
Launched along with various
new TPx501… inserts

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M6 Chipbreaker – Old Available Grades*
TP0500, TP1500, TP2500
 M6 medium to roughing in steel
Speedcapability
Wear resistance Toughness
TP2500
TP1500
TP0500
P M K
P M K
P K
*Old M6 in TP0500, TP1500 & TP2500
Depending on the market demand and the stock
status the discontinuation will start end of
2015. Targeted deletion date: 1st June 2016.
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12. HOWTOCHOOSEBETWEEN
M5,M6,MR7

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Chipbreaker – Old Available Grades*
TP0500, TP1500, TP2500
 Positioning when looking on edge
strength and working window
 Schematic working range
TGK1500
Depthofcut,ap(mm)
TP0500
Feed rate, f (mm/rev)
MR7
M6
M5
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Chipbreaker – Description M5, M6, MR7
Reference : CNMG120408-M6; Cross-sections at nose and cutting edge
Nose
For medium to roughing,
intended for demanding
operations at high feed rates
in steel
For medium to roughing,
excellent chip control and
relatively low cutting forces,
reliable cutting in both
continuous and interrupted
cuts
Secured choice for
roughing and interrupted
cut, suitable for high feed
rates and depths of cut
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How To Choose Between M5, M6, MR7
Chipbreaker Characteristics
M
P
kW
K
Cutting
forces
Work range
steel P
Tool life Material
Edge
strength
Chip
curling
M
P
kW
C-
No. of
products
K
P
kW KM
M5
M6
MR7
kW
CN..-92
DN..-56
SN..-62
TN..-75
WN..-65
CN..-50
DN..-25
SN..-11
TN..-04
WN..-28
CN..-92
DN..-09
SN..-48
TN..-21
WN..-20
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MR7 vs M6
Choose MR7 when
 Rough forgings/castings of steel, cast iron, stainless
steel with difficult skin and oxide scale
 Complex parts with heavy interruptions with large
depth of cuts and high feed rates
M
Working area where MR7
has its strength in combination
with heavy interruptions or
harsh oxide scaleMR7M6
M5
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M5 vs M6
Choose M5 when
 Aggressive chip breaking is the priority in ductile, long-
chipping steel/stainless steel with small depths of cut
and low feed rates
 Typically ”near-net-shape” components of cast and
forgings with D.O.C varying from moderate ap down towards zero
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M
Working area where M5 has its strength
when considering gummy, long-chipping
steel/stainless steel
MR7M6
M5

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M6 Cuts Smoothly
M5
M6
MR7
Sound level is
considerably lower
when cutting with
M6 compared to M5
and MR7
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19. FIELDTESTM6

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Field Test Experience M5 vs M6
Crater wear, chip hammering, chipping significantly more common on M5
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Images to the left illustrate M5 and M6 applied
using equal cutting parameters and after equal
time in cut. The crater wear on the rake and
the back rake is of larger magnitude on the M5
which is often experienced when comparing
these chipbreakers.
Component: Gear
Material: Steel 16MnCr5 SMG 4
(forging)
Cutting data: vc = 315 m/min
ap = 3mm
f = 0.4 mm/rev
Coolant used

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M6 In Ductile Iron
Component: Housing
Operation: Facing OD turning, Roughing with interruptions
Material: GGG40 SMG K4
Insert: Ref 1. CNMG160616-MR7 TK2001
Ref 2. CNMG160616-MR7 TP0500
Test: CNMG160616-M6 TP0500
Cutting data: vc = 310 m/min
f = 0.35 mm/r
ap = 4 mm
Coolant: Yes
Criterion: Tool life
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0
2
4
6
8
10
12
14
MR7 TK2001 M5 TP0500 MR7 TP0500 M6 TP0500
No. of components
K

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M6 In Stainless Steel
Component: Valve
Operation: Roughing, facing and OD turning
Material: Austenitic stainless 304L SMG M2
Insert: Ref CNMG160616-M5 TP2500
Test: CNMG160616-M6 TP2500
Cutting data: vc = 210 m/min
f = 0.38 mm/r
ap = 3.0-3.5 mm
Coolant: Yes
Criterion: Tool life
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M
0
2
4
6
8
10
M5
TM2000
M5
TP2500
M6
TP2500
No. of components

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M6 Conclusion
 M6 can be considered a first choice
 Cutting forces are lower for M6 compared to M5 and MR7
 M6 has generally a softer chip breaking compared to M5,
but harder chip breaking than MR7
 M6 gives lower noice levels than M5 and MR7
 M6 reduces chipping, plastic deformation and crater compared to M5
 M6 provides longer tool life compared to M5 and MR7
M6 is closer to M5 than MR7
(edge strength and working window)
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