What is the difference between gun drilling and BTA drilling

Gun drilling and BTA drilling are two different methods of deep hole machining, and their differences are as follows:

The tool structure is different: the tool structure of the gun drill is relatively simple, and its head is composed of two rotating blades, while the tool structure of the BTA drill is more complex, and its head has three rotating blades and seven guiding blades.

The machining method is different: the gun drill is processed by the rotation and feed of the tool, while the BTA drill is processed by the flow of high-pressure liquid and the rotation of the tool.

Different processing efficiency: The processing efficiency of gun drilling is higher, suitable for processing more simple deep holes, while the processing efficiency of BTA drilling is lower, suitable for processing more complex deep holes.

The processing quality is different: The processing quality of BTA drill is better, and it can process more complex deep hole shapes, while the processing quality of gun drill is poor, and it is not suitable for processing complex deep hole shapes.

In summary, gun drill and BTA drill have great differences in tool structure, processing mode, processing efficiency and processing quality, and need to choose the appropriate processing mode according to the actual processing needs.