1. CNC CUTTING TOOL AND
TOOLHOLDERS
PRESENTATION BY:-
M RAKESH
1MS13MCM04
MSRIT 1

2. OVERVIEW OF PRESENTATION
CNC MACHINING
TYPES OF TOOL MATERIALS
CNC MILLING
CNC DRILLS
CNC TURNING
TOOLHOLDER AND INSERT IDENTIFICATION
MODULAR TOOLING SYSTEMS FOR TURNING
TOOL PRESETTING
AUTOMATIC TOOL CHANGERS
TOOL CHANGE PROCEDURE
CNC CUTTING TOOLS DEVELOPMENT TRENDS 2

3. CNC MACHINING
The use of computers to control machine tools
Tools include lathes, mills, drills and grinders.
Machine tools function through numerical control
A computer program is customized for an object
and the machines are programmed with CNC
machining language (called G-code)
Controls all features like feed rate, coordination,
location and speeds
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4. REQUIREMENTS
Tools must resist abrasive wear
It must be capable of supporting and retaining
smooth,sharp edges
They must be rigid
Cutting and clearance angles must be carefully
selected
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5. TYPES OF TOOL MATERIALS
High speed steel (HSS)
High carbon tool steel (HCS)
Cast alloy
Cemented carbide
Ceramics
Diamond
Sialon
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6. CNC MILLING
A machine operation in which a work part is fed
past a rotating cylindrical tool with multiple
edges. (milling machine)
HSS with titanium-nitride-coated endmills
Climb milling
Cobalt premium endmills
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7. MILLING TOOLS
T-15 cobalt premium steel ball
end single end mill
Various holders
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8. CNC DRILLS
Drilling is a cutting process that uses a drill bit to
cut or enlarge a hole of circular cross-section in
solid materials.
Types of drill bits
I. low helix twist drill
II. high helix twist drill
III.coolant feeding drill
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9. 9
low helix twist drill high helix twist drill
coolant feeding drill

10. CNC TURNING
Turning is a machining process in which
a cutting tool, typically a non-rotary tool bit,
describes a helicaltoolpath by moving more or
less linearly while the workpiece rotates
Types of tools:-
I. Indexable insert tools
II. Standard brazed tools
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11. TOOL STYLES
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12. Toolholder identification
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13. INSERT IDENTIFICATION
Example: TNMG 542A
T N M G 5 4 2 A
Shape
Relief
Angle
Tolerance
s
Type Size Thickness
Cutting
Point
Radius,
Flats
Other
Conditions
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 Inserts are removable cutting tips, which means they are not
brazed or welded to the tool body
 They are usually indexable
 This saves time in manufacturing by allowing fresh cutting edges

14. INSERT SHAPE
The strength of the insert also depends on the shape
of the insert
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15. MODULAR TOOLING SYSTEMS
FOR TURNING
Specialized tooling consisting of a back end mounted
in the turret and interchangeable front ends containing
various cutting inserts
Modular tooling allows quick and
accurate positioning of cutting tools
on the lathe.
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16. 16
Modular tooling used for turning
tools
The clamping system used in the
Modular tooling used for turning
tools

17. TOOL PRESETTING
The setting of tool in advance at a place away
from the machine tool
A presetting device is used to preset axial and
radial positions of the tool tip on tool holder
Once this is done, tool holder is ready to be
mounted on the machine
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18. 18
Typical tool setting system useful
for machining centre
tooling
Typical digital tool setting
system, which is essentially a
digital height gauge useful for
machining centre tooling

19. 19Typical tool setter integrated with a CNC turning centre

20. AUTOMATIC TOOL CHANGERS
For the (ATC) to operate, it is necessary to have the
following:
a) A tool magazine where sufficient number of tools can
be stored.
b) The tool adopter that has a provision for pick-up by the
tool change arm.
c) The ability in the control to perform the tool change
function,
d) Tool change procedure 20

21. TYPES OF ATC
DRUM TYPE CHAIN TYPE
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22. TOOL CHANGE PROCEDURE
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23. CNC CUTTING TOOLS
DEVELOPMENT TRENDS
Large Depth Cut and Efficient CNC Cutter
The Cutter New Structure Promotion
Economic Features of CNC Cutter Tool
CNC Cutting Tool market in China Develops Rapidly
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CoroMill 345

24. CNC CUTTING TOOL
MANUFACTURERS
Cutting Tool Source (CTS)
Bharat Fritz Werner Limited (BFW)
Welding Aids, Delhi
Sai - Weld India, Mumbai
Patani Tools, Mumbai
Confidence Corporation, Rajkot
Bhagwati Traders, Panchkula
Shree Enterprises Manufacturing Co 24

25. THANK
YOU
ALL!!!!
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26. DISQUS
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