Titanium alloy super-long deep hole processing technique

Abstract

The invention discloses a titanium alloy super-long deep hole processing technique. A difficult-to-machine material is used as a study object, and a super-long deep hole drilling technology of TC11 titanium alloy which is a typical difficult-to-machine material is studied. On the basis of studying cutting characteristics of the typical difficult-to-machine material, a theoretical model of super-long deep hole drilling is established. Aimed at the characteristics of the material, a blade material and cutter geometrical parameters are rational selected, and the super-long deep hole processing method for the typical difficult-to-machine material is designed, so as to solve technical problems. The technique has realistic directive significance on processing super-long deep holes.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a processing method for ultra-long and deep holes in titanium alloys. Background technique [0002] In the machinery manufacturing industry, holes with an aspect ratio L / d>50 (L is the depth of the hole and d is the diameter of the hole) are generally called ultra-long and deep holes. Deep hole processing is an important branch of mechanical processing, and the theory of deep hole processing technology is also an important subject of mechanical processing research. Deep hole drilling is in a fully closed or semi-closed processing state, and the operator cannot directly observe the cutting state, tool movement and wear degree of the deep hole tool. Because the hole is relatively deep, the path of chips passing through the deep hole is relatively small. Long, it is not easy to discharge chips, and it is easy to cause chip blocking, resulting in chipping of the dri...

AI Technical Summary

Problems solved by technology

Deep hole drilling is in a fully closed or semi-closed processing state, and the operator cannot directly observe the cutting state, tool movement and wear degree of the deep hole tool. Since the hole is relatively deep, the path of chips passing through the deep hole is relatively small. Long, not easy to discharge chips, prone to chip blocking, resulting in drill chipping