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Product-Process Design
Laboratory of Grenoble for sciences of conception, optimisation and production
Product-Process Design
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Development of tool holders, tools and models for control of self-sustained vibration drilling

Abstract


Self-sustained vibration drilling offers the technological breakthrough needed to increase the performance of deep drilling. A special tool holder is designed to allow axial vibration, and comes as a spring mass system, whose characteristics are identified by the use of the theory of stability lobes. Identification of the geometric characteristics of an optimal tool requires the characterization of tribological aspects, mechanical properties of the machined material, and the definition of a proper edge preparation. Finally, this process is driven by the energy of the cut, and two types of effort have been identified. The Edge-Material-Pair Method is based on the discretization of the drilling thrust force during penetration phase, while the analytical approach can predict forces from a cut pattern identified from oblique cutting tests.


PhD Student: Pierre NAISSON
Université de Grenoble, the 6th of September 2011
Directors: Henris PARIS, Joël RECH (ENISE)

Confidential thesis, manuscript is not online

Date of update February 26, 2015

Univ. Grenoble Alpes