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What is the reason for the hole diameter reduction in deep hole machining?

2022-08-20

We all know that deep hole processing is not easy to do. We have talked about the problem of hole diameter reduction in deep hole processing. In the spirit of truth-seeking, the editor seriously consulted the senior engineer of quick screening: the following is the reason analyzed by Master Liu.
Cause:
The design value of reamer outer diameter is too small;
The cutting speed is too low;
The feed amount is too large;
The main deflection angle of reamer is too small;
Improper selection of cutting fluid;
The worn part of reamer is not worn out during grinding, and the elastic recovery reduces the aperture;
When reaming steel parts, if the allowance is too large or the reamer is not sharp, it is easy to produce elastic recovery, so that the aperture is reduced, the inner hole is not round, and the aperture is unqualified.

latest company news about What is the reason for the hole diameter reduction in deep hole machining? 0
Solution
Replace the outer diameter of reamer;
Properly increase the cutting speed;
Appropriately reduce the feed rate;
Increase the main deflection angle appropriately;
Select oil-based cutting fluid with good lubricating performance;
Regularly exchange reamers and properly sharpen the cutting parts of reamers;
When designing reamer size, the above factors shall be considered or the value shall be taken according to the actual situation;
Make experimental cutting, take appropriate allowance and sharpen reamer.

Shenzhen Perfect Precision Product Co., Ltd.

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What is the reason for the hole diameter reduction in deep hole machining?

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