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http://dx.doi.org/10.5762/KAIS.2021.22.6.60

A Study on Shape Optimization of Impregnated Bit  

Youm, Kwang-Wook (Division of Mechanical and Automotive Engineering, Hanyangcyber University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.22, no.6, 2021 , pp. 60-66 More about this Journal
Abstract
The core is extracted through drilling and used to evaluate the feasibility of developing mineral resources. To extract the core, a bit is installed in the forefront of the drilling device for drilling. Here, the drill bit receives stress due to direct friction against the ground. In addition, a bit appropriate for the given ground condition should be used due to the possibility of damaging a bit as a result of friction. This paper used a current bit model based on an impregnated bit and analyzed a new bit model that uses a stiffener of similar/disparate materials. The hardness and deflective strength were then evaluated by modeling the shape of impregnated bit through a calculation based on a theoretical formula. Through FEM analysis of the existing model and the new model, the stress and strain calculation results were optimized to minimize the stress and strain with a stress of 1.92 × 107 Pa and a strain of 9.6× 10-5 m/m.
Keywords
Impregnated Bit; Modeling; Stiffener; Stress; Strain; FEM Analysis;
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Times Cited By KSCI : 3  (Citation Analysis)
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