CNC CUTTING TOOL AND

TOOLHOLDERSPRESENTATION BY:-

M RAKESH

1MS13MCM04

MSRIT 1

OVERVIEW OF PRESENTATIONCNC MACHININGTYPES OF TOOL MATERIALSCNC MILLINGCNC DRILLSCNC TURNINGTOOLHOLDER AND INSERT IDENTIFICATIONMODULAR TOOLING SYSTEMS FOR TURNINGTOOL PRESETTINGAUTOMATIC TOOL CHANGERSTOOL CHANGE PROCEDURECNC CUTTING TOOLS DEVELOPMENT TRENDS 2

CNC MACHINING

The use of computers to control machine toolsTools include lathes, mills, drills and grinders.Machine tools function through numerical controlA 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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REQUIREMENTS

Tools must resist abrasive wearIt must be capable of supporting and retaining smooth,sharp edgesThey must be rigidCutting and clearance angles must be carefully selected

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TYPES OF TOOL MATERIALS

High speed steel (HSS)High carbon tool steel (HCS)Cast alloyCemented carbideCeramicsDiamondSialon

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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 endmillsClimb millingCobalt premium endmills

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MILLING TOOLS

T-15 cobalt premium steel ball end single end mill

Various holders

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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 drillII. high helix twist drillIII.coolant feeding drill

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low helix twist drill high helix twist drill

coolant feeding drill

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 rotatesTypes of tools:-

I. Indexable insert toolsII. Standard brazed tools

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TOOL STYLES

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Toolholder identification

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INSERT IDENTIFICATION

Example: TNMG 542A

T N M G 5 4 2 A

Shape Relief Angle

Tolerances 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

INSERT SHAPE

The strength of the insert also depends on the shape of the insert

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MODULAR TOOLING SYSTEMS FOR TURNING

Specialized tooling consisting of a back end mounted in the turret and interchangeable front ends containing various cutting insertsModular tooling allows quick and

accurate positioning of cutting tools on the lathe.

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Modular tooling used for turning tools

The clamping system used in the Modular tooling used for turning tools

TOOL PRESETTING

The setting of tool in advance at a place away from the machine toolA presetting device is used to preset axial and radial positions of the tool tip on tool holderOnce this is done, tool holder is ready to be mounted on the machine

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Typical tool setting system useful for machining centretooling

Typical digital tool setting system, which is essentially adigital height gauge useful for machining centre tooling

19Typical tool setter integrated with a CNC turning centre

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

TYPES OF ATCDRUM TYPE CHAIN TYPE

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TOOL CHANGE PROCEDURE

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CNC CUTTING TOOLS DEVELOPMENT TRENDS

Large Depth Cut and Efficient CNC Cutter

The Cutter New Structure PromotionEconomic Features of CNC Cutter ToolCNC Cutting Tool market in China Develops Rapidly

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CoroMill 345

CNC CUTTING TOOL MANUFACTURERS

Cutting Tool Source (CTS)Bharat Fritz Werner Limited (BFW)Welding Aids, DelhiSai - Weld India, MumbaiPatani Tools, MumbaiConfidence Corporation, RajkotBhagwati Traders, PanchkulaShree Enterprises Manufacturing Co

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THANK YOU

ALL!!!!25

DISQUS

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