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Seminar
on
2
*A cutting tool is any tool that is used to
remove metal from the work piece by
means of shear deformation.
*It is one o...
Types of cutting tool
1.Single Point Cutting tool
2.Multi Point Cutting tool
According to the number of major cutting edge...
Single point cutting tool
Tool having only a single cutting edge
Ex-Shaping Tool, Turning tool , Slotting tool.
Multi poin...
Multi Point Cutting Tool
7
Cutting tool bits generally made
*High-speed steel
*Cast alloys
*Cemented carbides
*Ceramics
*Cermets
*Cubic Boron Nitri...
TOOL GEOMETRY
Single Point Cutting Tool
9
Single Point Cutting
Tool
TOOL PARTS
FACE and RAKE SURFACE
The surface along which chip move upward called
rake surface
FLANK and RELIEF SURFACE
The...
6 Angles and 1 Nose radius
oBACK RAKE ANGLE
oSIDE RAKE ANGLE
oEND RELIEF ANGLE
oSIDE RELIEF ANGLE
oEND CUTTING EDGE ANGLE
...
DEFINING
THE
TOOL GEOMETRY
CUTTING THE SECTION PERPENDICULAR TO THE BASE
AND PARALLEL TO WIDTH
SIDE RAKE ANGLE
SIDE RELEF ANGLE
SIDE RAKE ANGLE
It is the angle between the face of the tool and the base of
the shank or holder.
SIDE RELIEF ANGLE
It is ...
CUTTING THE SECTION PARALLEL TO THE BASE
END CUTTING ANGLE
SIDE CUTTING ANGLE
END CUTTING EDGE ANGLE
It is the angle between end cutting edge & line
Normal to tool shank.
SIDE CUTTING EDGE ANGLE
It is...
CUTTING THE TOOL PARALLEL TO ITS LENGTH
AND PERPENDICULAR TO THE BASE
BACK RAKE ANGLE
END RELIEF ANGLE
BACK RAKE ANGLE
It is the angle between face of the tool
&plane parallel to base
END RELIEF ANGLE
The angle between front ...
22
It is the angle between face of the tool &plane
parallel to base
*Positive
Top face slopes downward
away from point
*Ne...
NOSE ANGLE or LIP ANGLE or WEDGE ANGLE or
KNIFE ANGLE or CUTTING ANGLE
NOSE ANGLE
It is the angle between face and flank.
The angle is maximum when clearance and rake angle
are minimum.
Larger ...
tool geometry by gaurav verma
tool geometry by gaurav verma
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single point cutting tool

tool geometry by gaurav verma

  1. 1. Seminar on
  2. 2. 2 *A cutting tool is any tool that is used to remove metal from the work piece by means of shear deformation. *It is one of most important components in machining process *It must be made of a material harder than the material which is to be cut, and the tool must be able to withstand the heat generated in the metal cutting process.
  3. 3. Types of cutting tool 1.Single Point Cutting tool 2.Multi Point Cutting tool According to the number of major cutting edges -
  4. 4. Single point cutting tool Tool having only a single cutting edge Ex-Shaping Tool, Turning tool , Slotting tool. Multi point cutting tool Tool having more than two cutting edges Ex- Milling , drilling and grinding tool
  5. 5. Multi Point Cutting Tool
  6. 6. 7 Cutting tool bits generally made *High-speed steel *Cast alloys *Cemented carbides *Ceramics *Cermets *Cubic Boron Nitride *Polycrystalline Diamond
  7. 7. TOOL GEOMETRY Single Point Cutting Tool
  8. 8. 9 Single Point Cutting Tool
  9. 9. TOOL PARTS FACE and RAKE SURFACE The surface along which chip move upward called rake surface FLANK and RELIEF SURFACE The other surface which is avoid rubbing with machined surface is called flank or relief surface SHANK It forms the main body of a solid tool and it is the part of tool which is gripped in the tool holder
  10. 10. 6 Angles and 1 Nose radius oBACK RAKE ANGLE oSIDE RAKE ANGLE oEND RELIEF ANGLE oSIDE RELIEF ANGLE oEND CUTTING EDGE ANGLE oSIDE CUTTING EDGE ANGLE oNOSE RADIUS
  11. 11. DEFINING THE TOOL GEOMETRY
  12. 12. CUTTING THE SECTION PERPENDICULAR TO THE BASE AND PARALLEL TO WIDTH
  13. 13. SIDE RAKE ANGLE SIDE RELEF ANGLE
  14. 14. SIDE RAKE ANGLE It is the angle between the face of the tool and the base of the shank or holder. SIDE RELIEF ANGLE It is the angle between the portion of the side flank immediately below the side cutting edge and a line drawn through this cutting edge perpendicular to the base.
  15. 15. CUTTING THE SECTION PARALLEL TO THE BASE
  16. 16. END CUTTING ANGLE SIDE CUTTING ANGLE
  17. 17. END CUTTING EDGE ANGLE It is the angle between end cutting edge & line Normal to tool shank. SIDE CUTTING EDGE ANGLE It is the angle which prevents interference as the tool enters the work material.
  18. 18. CUTTING THE TOOL PARALLEL TO ITS LENGTH AND PERPENDICULAR TO THE BASE
  19. 19. BACK RAKE ANGLE END RELIEF ANGLE
  20. 20. BACK RAKE ANGLE It is the angle between face of the tool &plane parallel to base END RELIEF ANGLE The angle between front surface of the tool & line normal to base of the tool Is known as a front clearance angle
  21. 21. 22 It is the angle between face of the tool &plane parallel to base *Positive Top face slopes downward away from point *Negative Top face slopes upward away from point *Neutral BACK RAKE ANGLE
  22. 22. NOSE ANGLE or LIP ANGLE or WEDGE ANGLE or KNIFE ANGLE or CUTTING ANGLE
  23. 23. NOSE ANGLE It is the angle between face and flank. The angle is maximum when clearance and rake angle are minimum. Larger lip angles allows high depth of cut, high cutting speed, work on hard materials.
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