NDLI: Research on Vortex Unstablity Caused by Bending Deformation of Drilling Bar in BTA Deep Hole Machining

Content Provider	IEEE Xplore Digital Library
Author	Hu Zhanqi Zhao Wu
Copyright Year	2009
Abstract	Vortex and unstability of bending boring bar caused by cutting fluid force are researched, with Timoshenko beam model and mated vibration model, based on which machining quality of BTA deep hole drilling and tools life can be promoted in practice. Linear equations of fluid force on boring bar is established first, stiffness coefficient and damping coefficient are gotten with Leono equation of unstable motion, and votex and unstability conditions of bending boring bar under the cutting fluid force are then derived. It is indicated that the main reason of votex and unstability of boring bar is G.E. function between the cutting fluid and the hole wall. Some rules are also derived with which cutting parameters can be selected reasonably, which is coincide with the parameters used in heavy machine building industry.
Starting Page	110
Ending Page	113
File Size	278910
Page Count	4
File Format	PDF
ISBN	9780769535838
DOI	10.1109/ICMTMA.2009.226
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-11
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Drilling Deformable models Force measurement Lubricants Timoshenko beam Machining Vibration measurement Boring Mechanical engineering deep hole boring mating vibration Differential equations Frequency boring bar vortex motion stability
Content Type	Text
Resource Type	Article

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