Case Studies
Case I
Workpiece |
Gear |
Cutting inserts |
PCBN – SNGN201020 |
Workpiece Materials |
40CrMo (45-55HRC) |
Cutting Parameters |
Roughing: Ap=4mm, f=0.7mm/r |
Finishing: Ap=0.5mm, f=0.6mm/r |
|
Cutting Method |
Gear Top cylindrical Turning |
|
|
Comparison
Comparison |
Cutting Speed |
Efficiency |
Life |
Carbide inserts |
20m/min |
20h/pcs |
0.25pcs/edge |
MORESUPERHARD
CBN inserts |
50m/min |
2h/pcs |
2pcs/edge |
Case II
Workpiece |
Bearing |
Cutting inserts |
PCBN—SNGN150720 |
Workpiece Materials |
Gr15 (55-62HRC) |
Cutting Parameters |
Vc=120m/min |
Ap=4mm |
|
f=0.1mm/r |
|
Cutting Method |
Cylindrical / Face turning |
|
|
Case III
Workpiece |
Rotary Support Bearing |
Cutting inserts |
PCBN—RCGN090700 |
Workpiece Materials |
42CrMo (47-55HRC) |
Cutting Parameters |
Vc=90m/min |
Ap=0.2mm |
|
f=0.3mm/r |
|
Cutting Method |
Inner Circle Turning |
Comparison
Comparison |
Cutting Speed |
Efficiency |
Life |
Coated Alloy |
50m/min |
2h/pcs |
1pcs/edge |
MORESUPERHARD
CBN inserts |
90m/min |
30min/pcs |
4pcs/edge |
Case IV
Workpiece |
Crankshaft |
Cutting inserts |
PCBN—DNGA110408 |
Workpiece Materials |
42CrMo (42-47HRC) |
Cutting Parameters |
Vc=170m/min |
Ap=0.3mm |
|
f=0.1mm/r |
|
Cutting Method |
Excircle Interrupted Wet Turning |
Comparison
PCD tools are made of polycrystalline diamond tips and cemented carbide substrates sintered at high temperature and high pressure.The production process of PCD tools includes cutting of PCD blanks,welding PCD blanks to cemented carbide substrate ,cutting tools grinding, quality inspection, etc.Moresuperhard can provide all the consumables needed to produce PCD tools.
Cermet are widely used in various industries due to their excellent performance, but their grinding difficulty is often difficult. Although the hardness of metal ceramics is similar to that of cemented carbide, its processing challenges mainly come from high density and low thermal conductivity. This article will explore the characteristics of metal ceramic grinding and how to choose the right grinding wheel and binder to improve processing efficiency.
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