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Vitrified CBN Grinding Wheel for Crankshaft

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Product Details

Description:
Vitrified CBN grinding wheel are remarkable for preventing grinding burns to the shoulder of the Crankshaft. CBN Grinding Wheel For Crankshaft can equip with various high precision CNC Crankshaft Grinding Machines, Suitable for high efficient, heavy grinding of Crankshaft pin grinding,Journal grinding.The wheel speed is generally 80m/s-120m/s.
Advantages:
1.High precision & good surface quality
2.High adhesion strength
3.Excellent performance
4.Reduced grinding forces
5.Easy dressing

Drawing&Specification:


Shape

D (mm)

T (mm)

H (mm)

X (mm)

1A1

500

20

203

5 8 10

1A1

22

203

5 8 10

1A1

19.5

203

5 8 10

1A1

600

35

132

5 8 10

1A1

19.8

132

5 8 10

1A1

20.5

132

5 8 10

1A1

650

40.5

132

5 8 10

1A1

43.5

132

5 8 10

1A1

44.5

132

5 8 10

1A1

50.5

132

5 8 10

* other size can be customized

The case of Vitrified CBN Grinding Wheel for Crankshaft

Application parameters

Work piece

Truck crankshaft:

End face ø90.4mm/Journal outer circle ø74mm

Material

42CrMoA, HRC 52-58

Machine

NAXOS UNION

Grinding parts

Journal end face, rounded corners and outer circles

Cooling fluid

Oil

Grinding way

Cut into the mill

Grinding wheel

1VG1L1 650- -39.6- -6- -3.5 NB151

Dressing wheel

CNC electroplating dresser roller SG 71P-150-1.2

Grinding parameters

Linear speed Vc=95m/s

Grinding allowance:

outer circle ae = ø1.2mm, end face ae = ø0.5mm

Maximum feed speed Vfa = 20 mm/min

Dressing parameters

Linear speed VR=85m/s

Dressing quantity aed=15*2+ 1 * 2 um

Dressing speed ratio qd= + 0.89

Grinding performance

 

Maximum material removal rate Q'wmax = 94.7mm³/mms

Grinding time TG = 10 min (40% efficiency improvement)

Dressing frequency

mT=210 journal/Dressing(50%life improvement)

Roughness Rz<4.5um

 

 

 

 

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