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crankshaft grinding - vit cbn wheel
crankshaft grinding - vit cbn wheel
crankshaft grinding - vit cbn wheel
crankshaft grinding - vit cbn wheel
crankshaft grinding - vit cbn wheel
crankshaft grinding - vit cbn wheel
Crankshaft Grinding - Vit Cbn Wheel
► Application: grinding crankshaft

► Model : 1A1 CBN wheel

► Wheel speed is generally 80m/s-120m/s

► Solutions for Auto Parts Machining, Please click the below to view
automibile parts machining
 


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Crankshaft Grinding - Vitrified bonded CBN Wheel
A type of innovation with the grinding wheels, the crankshaft grinding wheels finds its usage in the different automotive, truck, diesel, aircraft, and small engine manufacturing industry and also in the various engine rebuilding firms that are used to regrind the pins and the bearings.

The main parts of the crankshaft to grind and regrind, include
► Main Bearing
► Rod Journals / Crankpin Journals
► Flywheel Flange End
crankshaft grinding wheel

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.

crankshaft grinding
 
The specification of crankshaft grinding

1A1 grinding wheel
Model 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

Comparison of parameters between CBN wheel and corundum grinding wheel
crankshaft grinding wheel
  Corundum Grinding Wheel CBN Grinding Wheel
Workpiece life 20000 pieces 100000 pieces
Dressing 10 pieces 300 pieces
dressing time 1 min 4 min
Linear speed 45m / s 90m / s
RPM 1200 rpm 2500 rpm

The case of Vitrified CBN Grinding Wheel for Journal (Diesel engine)
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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