Introduction to rough machining
Coarse owners if the removal of most of the processing surface of the processing allowance, in the permitted range should try to choose a large depth of cutting and feed.Turning processing to ensure both quality and efficiency, compared with the finishing, rough processing is the biggest characteristic of the removal of materials in a certain period of time.Therefore, the level of rough car efficiency greatly affects the level of the whole processing efficiency.In the process of rough turning, the quality of turning tools directly affects the efficiency of rough turning, and the carbide blades and ceramic blades used in the previous processing have not met the production requirements.With the development of superhard materials, PCBN material has excellent characteristics such as high temperature resistance, wear resistance, can meet the large cutting depth and large feed of rough machining, greatly improving the rough machining efficiency.
Rough machining application of PCBN tool
Application1: Slurry pump roughing
|
The workpiece material |
High-speed rail (HRC58-62) |
|
Machining parts |
In the circle |
|
Tool type and material |
CNMN120810,BTS2800 |
|
Cutting depth AP (mm) |
1-3 |
|
Linear velocity v (m/min) |
80-120 |
|
Feeding f (mm/rev) |
0.25-0.5 |
Application2: Roller roughing
|
The workpiece material |
High nickel chrome (HRC62) |
|
Machining parts |
Cylindrical |
|
Tool type and material |
SNMN160820,BTS2800 |
|
Cutting depth AP (mm) |
2-6 |
|
Liner velocity v (m/min) |
30-50 |
|
Feeding f (mm/rev) |
0.8-1.0 |
