





Diamond/CBN Double Disc Grinding Wheel for roughing and finishing
Reduced cutting forces
Increased removal rates
Increased precision
Reduced disposal costs
Reduced machine downtime
High Ceramic Grinding Polishing
Cutting Tool Industry
Diamond Jewelry Industry
Automotive Industry
Bearing Industry
Woodworking Industry
Thermal Spray Coating Industry
Glass Industry
Oil&GAS Industry
LED & Semiconductor Industry
Medical Industry
Dressing Tools
Diamond & CBN Grinding Wheels
Honing Tools
End Surface Grinding
Vacuum Brazed Diamond Tools
Roll Industry
Powder Metallurgy Workipece
Description:
More SuperHard company offers a full line of diamond and CBN grinding wheels and dressing stones for fine grinding machines and single and double side lapping systems. Our vitrified diamond and CBN grinding discs have high grinding efficiency, high wear resistance and abrasive consumption, good surface quality and flatness of the workpiece.
Advantages of Inserts Top and Bottom Grinding Wheels:
1.High grinding efficiency,Long service life and Good shape retention.
2. High strength synthetic diamond for high removal rates while excellent finish.
3. Sharp shape synthetic diamond for long dressing intervals.
4. Free cutting design for low cutting energy.
5. Better cutting edge with smaller chipping.
6. Good uniformity of size because the stable uniform structure and materials in abrasive layer.
7. High flatness, good finish, and parallemism.
8. Save your labor costs.
Applicable Areas:
♦ Hydraulic pneumatic components. vane pump, conversion valve, piston pump,fuel pump, hydraulic motor parts
♦ Compressor spare parts. air conditioner compressor vane, piston, Refrigerator compressor valve plate, cylinder block (grey cast iron or nodular cast iron), sleeve (alloy cast iron), slide (high speed steel)
♦ Engine parts. automobile fuel pump parts, booster pump parts,oil pump nozzle parts
♦ High precision shaft ,seal, watch parts, molds, carbide blade, ceramic valve core,magnetic materials,etc
Various Layouts of double discs:
Shape of resin bond grinding segment: circular, straight segment (other shapes can be customized)
Shape of the vitrified bond grinding segment: regular hexagon, sector, square ,circular, trigonometrical, hexagonal pellets (other shapes can be customized)
Typical Grinding machine for double disc:
Wendt WBM, Viotoo, AMT, Stahli, Peter Wolters, Diskus, Agathon T&B, Fujisanki, Supfina, Melchiorre, Koyo, Lam Plan, Speedfam, Kemet, Gardner and other brands.
Moresuperhard double disk grinding wheel has successed matched: Lapmaster DDG-45 using 457mm double disk grinding wheel, DDG-600 using 600mm double disk grinding wheel and Speedfam DSM 9B-5L-IV using638mm double disk grinding wheel, and double disk grinding wheel(1000D*350H*58T) for SKF-PM1000 grinding machine.
Matching dressing grinding wheel:
The dressing wheels are used for dressing diamond and CBN wheels. According to the different particle size, accuracy of the diamond and CBN grinding disc to choose the dressing wheel, making dressing easier and more time saving.
How to select the grit?
FEPA |
Grit |
Application |
D181 |
80/100 |
Roughing |
D151 |
100/120 |
|
D126 |
120/140 |
|
D107 |
140/170 |
|
D91 |
170/200 |
|
D76 |
200/230 |
Finishing |
D64 |
230/270 |
|
D54 |
270/325 |
|
D46 |
325/400 |
|
M30 |
600 |
Lap grinding |
M25 |
800 |
Type |
Spec. |
|
D: 305mm - 1200mm |
X: 3mm - 10mm |
|
T: 50mm -100mm |
|
|
D: 380mm - 1200mm |
W: 150mm - 400mm |
|
X: 3mm - 10mm |
|
Layouts: cylindrical, hexagonal, fan shaped and square
Flatness:<=2μm, parallelism:<=2μm, Roughness: Ra0.02μm-Ra0.2μm |
|
Durability: grinding HSS slide (25mm*25mm), the number of workpiece >= 1million
grinding carbide blade, the number of workpiece >= 1million |
|
Double disc typical grinding machines: AM Technology,Lapmaster,Melchiorre,Peter Wolters,Stähli... |
Workpiece material | nodular cast iron (45#, 40Cr, 40CrMo) |
Hardness | 210-280HB |
grinding tolerance | Rough : 0.4 - 0.5 |
Fine: 0.2 - 0.4 | |
surface finish | Ra 0.8 |
Size of grinding wheel | 915* 85 * 304.8 |
Grinding wheel speed | 35m/s |
No burns or burrs |
Application | Double-Disc Fine Grinding |
Wheel sizes | Diamond 2A2T Ø720-30T-5X-320ID |
Machine | Peter Wolters |
Coolant | Oil |
Wheel speed | 120rpm |
Workpiece speed | 30rpm |
Work-piece | Seals |
Material | Carbide |
Hardness | 70HRC |
Stock removal | 0.1mm total |
Cut rate | 70µm/min |
Roughness achieved | 0.20 µm Ra |
Flatness achieved | 0.001mm |
Parallelism achieved | 0.001mm |
Grit of diamond wheel | 400 # |
Cycle time | 2,30 minutes |
Case 3 Vitrified diamond double disc grinding wheel for ceramic seal
Workpiece |
Ceramic Seals Al2O3 |
Size(mm) |
OD22mm* ID17 mm* Thickness 4.5 mm. |
Purity |
High Alumina, Purity 92% |
Hardness |
1150 HV |
Stock Removal |
0.2mm |
Stock Removal rate |
0.025mm/min |
Parts per cycle |
150PCS |
Machine |
Speedfam DSM 9B-5FH |
Flatness after grinding |
0.0003mm |
Parallelism after grinding |
0.001mm |
Surface finish after grinding |
mirror finish (RA 0.01um) |
Grinding pressure |
150 Gms/CM2 |
Bottom Plate RPM |
70 |
Top Plate RPM |
35 |
Sun Gear RPM |
25 |
No of Cycles run |
28
|
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