In the process of deep hole processing of titanium alloy pipe, the traditional deep hole machining method is still used. Use our after modification, the equipment manufacturing, installation special deep hole cutter bar and supporting tools, carries on the deep hole processing, specific processing step three: drilling, reaming, reaming, to carry out the processing.
The surface of the deep hole of titanium alloy pipe has the following problems: the diameter of the inner hole is extremely poor, the surface roughness is not good, and the inner hole surface has the groove mark phenomenon.
After analysis, we found the transition of floating reamer transfer size for the ceiling, the reamer boot end cutting uneven, floating blade offset production, cause the inner hole diameter size beyond the drawing requirements. Also causes is due to the inner hole of the trench with thin wall and deep hole is too long, reaming process to produce vibration and squeeze knife, prone to the phenomenon, moreover also can produce the above issues after the reamer wear.
In view of the causes of these problems, gradually improve and improve the tool structure and make improvement methods. Increase the check before processing the actual size of reamer, and floating reamer guide the centering effect, to ensure the reamer automatic centering, ream, check the tool wear condition at the same time, timely replacement of the new knife. In this way, the dimension of deep hole machining is guaranteed in the future processing. The first part of titanium alloy pipe deep hole processing and development was completed, and in the later processing, 48 titanium alloy pipe deep hole processing tasks were completed successively. Meet the company's development and production needs, solve the titanium alloy pipe deep hole processing technology key.
The test results show that it is feasible to develop this deep hole machining scheme. The deep hole processing method and processing technology of titanium alloy material have been included in the relevant technical documents and applied to the special production line.
