Application

A few explanations on the process

The high cutting yield coupled with the precision and surface finish obtained also make it possible to drill deep holes and to execute simple, rapid and economic drilling operations.

Some parts undergoing small parts turning require deep boring operations. Generally these machining operations are carried out during 2nd operations or even have to be sub-contracted.

Ø=1.2mm

Machining process In order to carry out quality deep bores, certain parameters must be complied with: Rough drilling of a hole for guiding through the calibration bit so as to achieve perfect tool guidance. Switching on the pressure once the bit is engaged in the hole. Machining the entire length of the hole in one pass and without scraping. On completion of machining, removing the tool from the hole; the spindle and washing operations having come to a stop.

Benefits of the principle

• The part is completely machined on the lathe.
• The guide bush acts as the steady guide for the bit.
• Minimum axial drift of the bit (excellent concentricity).
• Dispenses with reworking operations on long holes (2nd operations).