To research CNC turning face deep hole working,the methods of using the fixed processing cycles to implement face deep hole working processing cycles was put forward.

In view of some of the difficult points for machining the hanging pup joints used in directional wells, a special technology for deep-hole machining is developed.

To rebuild normal turner into machine tool of deep-hole machining based on programmable logic controller (PLC) and AC frequency control technology, electrical control system of high performance machine tool was designed, which could realize self-turning.

This paper analyzes the methods of deep hole machining.

Deep hole machining is an important branch of machining and deep-hole boring is an important component of deep-hole machining.

The research of the deep hole processing system which used gun-drill and the forced-air cooling technique;

Selection of cutting parameter in deep hole processing;

The deep hole processing is working in a state of close or semi-close, its course is unstable.

Aimed at the characteristics of oil pressure monitoring signals having pulse interference and the random non-stationary noise in deep hole drilling process,this paper presents a filtering method of anti-impulse interference moving average based on wavelet packets.

Electrode wear affects accuracy of micro-EDM deep hole drilling seriously.

This deep-hole processing robot inherits the traditional advantages of deep-hole processing methods on the basis of the deep hole for the difficult process with the general processing of ultra-long tube design.

After that,they also indicate the further understanding of the deep-hole processing features,which are the mechanical properties.