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- W2788826917 abstract "A lab-scale linear cutting machine was manufactured to investigate the rock-cutting mechanism and a range of design factors of point attack pick cutters. Tests were performed on three samples with different strengths, and measured cutting forces were used to calculate the specific energy, an indicator of cutting efficiency. We proposed design conditions such as cut spacing, depth, skew angle, and attack angle for the cutting head to achieve efficient rock cutting while minimizing specific energy. In addition, the structural stability of the pick cutter and holder with respect to skew angle was analyzed. The relation between structural stability and durability is discussed in terms of the resultant force and skew angle. A series of finite element analyses explored the structural stability of the pick assembly. The results indicated two sites of concentrated stress that depend on the skew angle and can accelerate undesired abrasion of the pick, and a positive skew angle appears advantageous in terms of both cutting efficiency and structural stability." @default.
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- W2788826917 date "2018-03-01" @default.
- W2788826917 modified "2023-09-27" @default.
- W2788826917 title "A study on rock cutting efficiency and structural stability of a point attack pick cutter by lab-scale linear cutting machine testing and finite element analysis" @default.
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- W2788826917 doi "https://doi.org/10.1016/j.ijrmms.2018.01.034" @default.
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