Boring


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Boring

 

(in Russian, rastachivanie), a mechanical process for machining interior surfaces by boring (cutting) tools in order to increase the diameter of a hole. Boring is done on lathes, boring machines, and other metal-cutting machines. It is possible to machine blind and through holes, both cylindrical and conical, as well as grooves and slots. Boring yields a machining precision of classes 4 or 5 and a surface roughness of classes 2 or 3.


Boring

 

(in Russian, rassverlivanie), mechanical working of an existing hole with a drill in order to increase the diameter. It is done either by machine, using drilling and boring machines, lathes and other metalcutting machines, or by hand, using pneumatic or electric drills. The precision achieved is of the fourth to fifth class, and the surface roughness is of the second to third class.

boring, borehole

A hole drilled in the ground to obtain soil samples for evaluation and to obtain information about the strata.
References in periodicals archive ?
The Tunnel Boring Machine (TBM), a 450-ton rock-chewing tool nicknamed "the Mole.
Production backups caused by boring operations have woodworkers looking toward machinery manufacturers to help speed production.
The new Digital Bore Measuring Tool is designed to work with boring bars from 1.
com/research/95pnr3/global_tunnel) has announced the addition of the "Global Tunnel Boring Machine (TBM) Industry Report 2015" report to their offering.
Mark, Dickey and Steve Laney, well-known for their many years as road boring and horizontal directional drilling (HDD) contractors, are rebranding and expanding their business.
The EWB UP--Ultra Precision--Finish Boring Head is a series of boring tools with adjustable resolution of 0.
The Cri-Bore Modular Boring system covers a boring range of 1.
Crandall, whose company continues to serve as a vanguard for shoring industry solutions on a myriad of projects nationwide, will articulate the benefits of the Bohrtec 400L Pilot Tube Boring System, as well as perform a field demonstration.
Why you should care: The long-bed lathe was designed specifically for processing long shafts and tubing where deep-hole drilling and boring are involved.
Boring and drilling machines are being designed with quick-change and other features that help wood products manufacturers produce short runs more cost effectively