منابع مشابه
Experimental investigation on the breakage of hard rock by the PDC cutters with combined action modes
To verify the feasibility and efficiency of rotary-percussive drilling assisted by waterjets in very hard rocks, experiments on the Ž . performance of polycrystalline diamond compact PDC cutters resisting different combined loads of static thrust, impact, cutting and waterjets on Missouri red granite and Halston limestone were investigated. The experiments were conducted by means of a Ž . drop ...
متن کاملNumerical Analysis on Rock Breaking by Disc Cutters with Different Joint Characteristics
RESEARCH ARTICLE Numerical Analysis on Rock Breaking by Disc Cutters with Different Joint Characteristics Tan Qing, Yi Nian-en, Xia Yi-min, Zhang Xu-hui, Jiang Bo, Yang Yang and Yizeng Siyuan State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha, Hunan 410083, China School of Mechanical and Electrical Engineering, Central South University, Changsha, ...
متن کاملMonitoring Roller Vibration During Compaction of Crushed Rock
Real-time monitoring during soil compaction can be made possible by utilizing the vibration signature of a vibratory roller compactor. The compactor and soil constitute a coupled dynamic system, albeit complex and nonlinear. As the soil density increases and its mechanical properties change, the dynamic response of the compactor will change. Developing a thorough knowledge of the relationship b...
متن کامل[The influence of posture during flower-cutting on the strength of flower-cutters' apprehension].
OBJECTIVE Musculoskeletal disorders, particularly carpal tunnel syndrome, have been one of the most important public health problems during recent years. It is the leading cause of occupational morbidity in Colombia, the flower industry being one of the areas of work having the highest incidence. This study was thus aimed at ascertaining whether flower-cutters' strength of apprehension has been...
متن کاملFlank milling with flat end milling cutters
In this paper, we give a detailed mathematical understanding of flank milling with flat end cutters, which we use to develop a method for milling with such a cutter. This method slides the cutter along two rails, providing two points of contact on the surface.
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ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1975
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.91.1052_653