What is the real difference between rough boring and fine boring?
Do you know the real difference between rough boring and fine boring?
Although the goal of both processing methods is to have an internal hole, there is a clear division of labor in the process – one is used to quickly remove material and shape the initial pore size, and the other is used to improve dimensional accuracy and surface quality.
The rough boring hole is like laying the foundation of a building, laying the foundation for the next process “quickly, ruthlessly and accurately”;
fine boring, on the other hand, is a delicate carver who precisely polishes the inner hole to the final required size and finish.
Such a dual processing process is widely used in high-precision parts such as automobile steering seats, motorcycle head tubes, bicycle bottom brackets, etc., to ensure that the product has a stable, safe and durable structure during use.
Rough Boring and Fine Boring are two types of machining, although the goal is to machine the hole diameter, but their processing purpose, accuracy requirements and application fields are different. Here’s how they compare and differ:
Comparison of rough and fine boring processing
|
project |
Rough Boring |
Fine Boring |
|
Purpose of processing |
A large amount of material is removed and the pore size is initially formed |
Improve the dimensional accuracy and surface finish of the holes |
|
precision |
Medium accuracy |
High precision |
|
Surface roughness |
Coarse |
smooth |
|
Tool characteristics |
Use more durable knives |
High-precision tools are used |
|
Processing speed |
Quickly remove material with high feeds |
The speed is slower and the feed is smaller |
|
Main processing parameters |
High depth of cut, low feed |
Low depth of cut, high feed |
|
Processing needs |
Reserve an appropriate allowance for subsequent finishing |
Final dimensions are met |
