Surface Grinding, CYLINDRICAL GRINDING, CENTRELESS GRINDING, PROFILE GRINDING & PLUNGE GRINDING, Bench and Pedestal Grinders, Portable and Flexible Grinder, SwingFrame Grinder, TOOL & CUTTER GRINDER, Honing,Lapping and Other Super Finishing Processes.

1. Grinding and Super Finishing Processes
1

2. Surface Grinding

3. CYLINDRICAL GRINDING

4. CENTRELESS GRINDING

5. PROFILE GRINDING & PLUNGE
GRINDING

6. Grinding Machines

7. Grinding Machines

8. Bench and Pedastal Grinders

9. Bench and Pedastal Grinders
Constructional Features
Working Principle
Application

10. Portable and Flexible Grinder

11. Portable and Flexible Grinder
Constructional Features
Working Principle
Application

12. Swing Frame Grinder

13. Swing Frame Grinder
Constructional Features
Working Principle
Application

14. Cylindrical Grinder

15. METHODS OF CENTRELESS
GRINDING

16. SURFACE GRINDERS

17. Special Grinders
TO REMEMBER
TFR CC WT

18. Special Grinders
 Tool & cutter grinders
 Form Grinders
 Roll Grinders
 Crank shaft grinders
 Cam grinders
 Way Grinders
 Thread grinders

19. Special Grinders
TO REMEMBER
TFR CC WT

20. TOOL & CUTTER GRINDER

21. Methods of Mounting Work piece
on Cylindrical Grinding Machines

22. Work Holding on a cylindrical grinder

23. Method of Mounting Workpiece in a
Chuck

24. Spring Type Back Rest

25. Methods of Mounting Workpiece on a Mandrel

26. Honing,Lapping and Other Super
Finishing Processes

27. Honning

28. Lapping

29. Super Finishing

30. Difference between
Honing, Lapping & Super
Finishing Processes

31. Cutting action of
Grinding Wheel

32. Terms Associated with
Grinding Wheel operations
• Loading
• Glazing
• Dressing
• Truing

33. Self Sharpening action of Grinding
Wheel

35. Mounting of Grinding
Wheel
1. Visual Inspection
2. Sound Test
3. Balancing of the Grinding
Wheel

36. Sound Test

37. Balancing of the Grinding
Wheel

38. LOADING & GLAZING

39. Loading
When the opening or
pores of the wheel face is
filled up with metal
particles, than it prevents
the wheel from cutting
freely

40. Glazing
When the abrasive
grains, which have lost
their sharpness are
retained by the wheel
than it is called glazing.

41. TRUEING & DRESSING

42. Trueing
Trueing is called the process
of changing the shape of the
wheel, which is resulting due
to the loss of original shape
when the grinding wheel is
wornout as a result of
breaking away of the
abrasive grains & bond.

43. Dressing
The dressing of grinding
wheel done to remove the
loading and to breakaway
the glazed surface of the
wheel, to bring out the
sharp abrasive particles
for the grinding the work.

44. CONCEPT OF TRUEING &
DRESSING

45. Dressers
1. Metal Crushers.
2. Abrasive sticks/wheels
3. Diamond Dressers
1. Single point diamond dresser
2. Single set and matrix diamond
dresser
3. Rotary and stationary diamond
rolls
4. Crushing rolls

46. DRESSING OF GRINDING
WHEEL

47. Grinding Fluid

48. GRINDING WHEELS

49. COMPONENTS OF THE GRINDING
WHEEL
ABRASIVE PARTICLES
BONDING MATERIAL

50. ABRASIVE PARTICLES
I. Aluminium Oxide
II. Silicon Carbide
III.Boron Nitride
IV.Boron Carbide
V. Diamond

51. Types of Abrasives
Natural Abrasive
Artificial Abrasive

52. BONDING MATERIAL
I. Vitrified Bonds
II.Mineral Bonds
III.Organic Bonds

53. Vitrified Bonds
It is most commonly used
bond.
The process of wheel making
consists of mixing abrasive
grains with ceramic clays or
porcelains, shaping the
mixture into wheel shape,
drying and baking at 1300 °C

54. Mineral Bonds
For making wheels with this
bond,the abrasive grains are
mixed with sodium silicate
and clays.
The mixture is moulded into
wheel shape and baked at
260 °C for about 20 hours.

55. Organic Bonds
For making wheels with
organic bond,the abrasive
grains are mixed with organic
material like
shellac,phenolic
resins,rubber etc.
Moulded into wheel shape
and baked at 150 °C.

56. Types of Grinding Wheels
Based on bonding
materials
Based on wheel’s grade
Based on structure
Based on wheel shape

57. Based on bonding
materials
1. Vitrified grinding wheel
2. Silicate grinding wheel
3. Elastic grinding wheel
4. Resinoid grinding wheel
5. Vulcanised grinding wheel
6. Oxy chloride grinding wheel

58. Based on wheel’s
grade
1.Soft grade wheels
2.Medium grade wheels
3.Hard grade wheels

59. Based on structure

60. Based on wheel shape

61. Nomenclature of
Grinding Wheels

63. To Remember
PAGG SBS

64. Symbol of Manufacturer
This is not compulsory.
The manufacture
specifies particular
quality of abrasives by
it.

65. Grain Size
Very
coarse
grains
Coarse
grains
Medium
Grains
Fine
Grains
Very
Fine
Grains
Super
Fine
Grains
Special
Grains
6 16 36 80 150 280
1000
or
finer
8 20 46 90 180 320
10 24 54 100 220 400
12 30 60 120 240 500
14

66. Grade
Very
Soft
Soft Medium Hard
Very
Hard
A H L T
B I M P U
C J N Q V
D K O R W
E S X
F Y
G Z

67. Structure
Dense
Open
0 1 2 3 4 5 6 7 8 9 10 11
12 13 14 15

68. Type of Bond
“ V “ - Vitrified
“R” - Rubber
Etc…

69. Manufacturer’s Mark To
Identify The Wheel
This is not compulsory.
It is the symbol given by the
manufacturer of the wheel for
its identification.
It is generally shown by
figures

70. 51A36L5V23
51 SYMBOL OF MANUFACTURER
A
TYPE OF ABRASIVE(Aluminium
Oxide)
36 GRAIN SIZE(MEDIUM)
L GRADE(MEDIUM)
5 STRUCTURE(DENSE)
V TYPE OF BOND(VITRIFIED BOND)
23 MARK OF MANUFACTURER