Clearance angle and evolution of depth of cut in actuated disc cutting

作     者：Sevda Dehkhoda Bryce Hill 

作者机构：CSIRO Minerals Resources Queensland Centre for Advanced Technologies 

出 版 物：《Journal of Rock Mechanics and Geotechnical Engineering》 (岩石力学与岩土工程学报（英文版）)

年 卷 期：2019年第11卷第3期

页      面：644-658页

核心收录：

学科分类：08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0813[工学-建筑学] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）] 

基　　金：Minerals Research Institute of Western Australia  Mining3 and CSIRO for funding this work 

主　　题：Actuated disc cutting Undercutting Force model Wobble Hard rock cutting 

摘      要：This paper investigates the effect of cutter clearance angle on variation of depth of cut and cutting process with an actuated disc cutting(ADC).ADC is a cyclic cutting method with two main characteristics:(i)a disk-shape cutter is used to attack the rock in an undercutting mechanism;and(ii)the cutter is dynamically actuated as it is moved across the ***,the cutting process of such system is periodic,each recurrence known as actuation *** first ADC model,developed in 2016,represented an idealization of the technology with a flat disc cutter,where no clearance angle was *** evolution of the contact between the disc and the rock was,therefore,computed only on horizontal x-y plane,ignoring the effect of normal component of the force acting on *** article reports on a study that incorporates the cutter inclination angle in derivation of cutter/rock interface *** extends the proposed kinematic and geometry based model to take into account the variable depth of cut in estimating the forces associated with cutting in one actuation *** were conducted using Wobble to test the predictions of the improved model at various operating *** model predictions are matched with the experimental results and effects of various factors are analysed.