The key to the quality of pcd tool‘s edge in the choice of vitrified bond diamond grinding wheel particle size. The fin grit can processing fine cutting edge chipping but with the lower the grinding efficiency. So the PCD cutting tool sharpening process can be divided into three processing stages: coarse, fine, and super fine according to the accuracy, application, or failure degree of the cutting edge of the tool.
1. According to the accuracy and purpose of the cutting edge
|
No |
Cutting Edge Precision |
Grit |
Purpose |
|
A. Coarse |
0.05mm |
230/270#~320/400# |
Rough machining |
|
B. semi-finishing |
0.02mm |
M20~M40 |
semi-finishing |
|
C. finishing |
0.005mm |
M5~M10 |
finishing |
2.According to the degree of blade failure (re-grinding tools)
|
No |
Cutting Edge Precision |
Grit |
Purpose |
|
A. Coarse |
cutting blade damage 0.5mm |
230/270#~320/400# |
or electrical machining |
|
B. semi-finishing |
cutting edge collapse 0.3mm |
M20~M40 |
|
|
C. finishing |
cutting edge wear 0.1mm |
M5~M10 |
|
In order to ensure the quality of the cutting edge and improve the grinding efficiency, the clearance angle can be divided into large relief angle and small relief angle.
Use coarse-grit grinding wheel to first grind the large relief angle because the contact surface has a large grinding force and the grinding efficiency is high; then use fine-grit grinding wheel to sharpen the small relief angle and control the width of the small relief angle to about 0.1~0.3mm , Good quality of small sharpening of contact surface.
Moresuperhard provide vitrified diamond grinding wheel for grinding and sharpening single crystal diamond tools if your grinder can be used with coolant.Moresuperhard vitrified diamond grinding wheel for grinding mcd/cvd diamond cutting tools have many successful grinding cases.Therefor,ordinary grinder also can be used for single diamond tools with vitrified diamond grinding wheel.While,if you want to process high precision single crystal diamond cutting tools,It's necessary to purchase a professional single crystal diamond tool grinding machine.Moresuperhard also provide professional grinding machine for grinding single crystal diamond cutting tools.
Moresuperhard mainly exhibited ceramic bonded diamond products. It mainly includes ceramic bond optical profile grinding wheels, ceramic diamond peripheral grinding wheels, 10000# ceramic diamond grinding wheels specially used for single crystal diamond cutting tools grinding, back grinding wheels, and ceramic diamond cylindrical grinding wheels.
Add: Zhongyuan Rd, Zhongyuan District, Zhengzhou, 450001, Henan, China
Tel: +86 17700605088
