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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 |
|
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* other size can be customized |
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The case of Vitrified CBN Grinding Wheel for Crankshaft
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Application parameters |
|
|
Work piece |
Truck crankshaft:
End face ø90.4mm/Journal outer circle ø74mm |
|
Material |
42CrMoA, HRC 52-58 |
|
Machine |
NAXOS UNION |
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Grinding parts |
Journal end face, rounded corners and outer circles |
|
Cooling fluid |
Oil |
|
Grinding way |
Cut into the mill |
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Grinding wheel |
1VG1L1 650- -39.6- -6- -3.5 NB151 |
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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 |
|
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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) |
|
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Roughness Rz<4.5um |
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