Results 261 to 270 of about 168,439 (303)
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Effect of groove geometry and cutting edge in rock cutting
Journal of Petroleum Science and Engineering, 2017Abstract The purpose of this paper is to investigate the effects of rock/cutter interface geometry on the cutting action of a circular sharp Polycrystalline Diamond Compact (PDC) cutter tracing a groove on the surface of a rock sample. A series of laboratory cutting experiments are carried out on two sedimentary rocks (a limestone and a sandstone ...
Doshvarpassand, S. +2 more
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Modeling the cutting edge geometry of scalpel blades
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2016Scalpel blades are commonly used in surgery to perform invasive medical procedures, yet there has been limited research on the geometry that makes up these cutting instruments. The goal of this article is to define scalpel blade geometry and examine the cutting forces and deflection between commonly used scalpel blades and phantom gel.
Pralav P Shetty +4 more
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Physically Compatible Characteristic Length of Cutting Edge Geometry
Journal of the Korean Society of Precision Engineering, 20121 LG 전자 생산기술원 (Productivity Research Institute, LG Electronics Inc.)2 서울과학기술대학교, NID 융합기술대학원 (Graduate School of NID Fusion Technology, Seoul Nat’l Univ. of Sci. & Tech.)3 서울과학기술대학교, 제품설계금형공학과 (Dept. of Product Design & Manufacturing Eng., Seoul Nat’l Univ. of Sci.
Il-Hyuk Ahn, Ik-Hyun Kim, Ji-Hong Hwang
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Ball End Mill with Curved Cutting Edge and Constant Cutting Geometry
Russian Engineering Research, 2018A design method is proposed for a ball end mill with constant inclination of the cutting edge to the spherical section. The tooth profile specified in the normal cross section is the generatrix, while the curved cutting edge at the sphere in the form of a loxodrome is the directrix.
E. A. Ryabov +4 more
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Production Engineering, 2009
The occurrence of tool vibrations in the micromilling process is undesirable because of its negative influence on the quality of microstructures. Due to the small dimensions of the undeformed chip parameter, the influence of the cutting edge on the chip formation and on the regenerative effect seems to be larger than in macrodimensions.
Dirk Biermann, Alexander Baschin
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The occurrence of tool vibrations in the micromilling process is undesirable because of its negative influence on the quality of microstructures. Due to the small dimensions of the undeformed chip parameter, the influence of the cutting edge on the chip formation and on the regenerative effect seems to be larger than in macrodimensions.
Dirk Biermann, Alexander Baschin
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Development of cutting edge geometries for hard milling operations
CIRP Journal of Manufacturing Science and Technology, 2015Abstract Milling of hardened steels is a challenging task for mould and die manufacturing due to the high material strength. One major drawback is the tool wear, which is a result of the high thermo-mechanical stress on the tool. The wear rate can generally be influenced by the tool geometry, coatings and substrates.
B. Denkena, J. Köhler, B. Bergmann
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Parametric characterization of the geometry of honed cutting edges
Precision Engineering, 2013Abstract Development of methodologies for the geometric characterization of cutting edges is of significant current interest, in light of the profound influence that the edge geometry wields on virtually every machining response, and the evolving capability for generating tailored edges.
N.Z. Yussefian, P. Koshy
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Finite element simulation of cutting process under the worn tool edge geometries
The International Journal of Advanced Manufacturing Technology, 2021Finite element (FE) technique has been used extensively to have a deeper understanding on the mechanics of metal cutting and for process optimization. The accuracy of the model is dependent on both the highly non-linear material plasticity model and the simulated friction condition between contacting surfaces.
Keyvan Hosseinkhani, Eu-gene Ng
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Modeling cutting edge geometry for plane and curved needle tips
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2012Hollow needles are commonly used in many areas of medicine, yet there has been limited research on needle tip geometry. A better understanding of needle tip geometry can lead to the creation of an optimized needle tip geometry design which would greatly benefit the procedure of biopsy, where a needle is used to cut and remove tissue from the body. The
Jason Z Moore +5 more
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Effect of Tool Edge Geometry on the Nanometric Cutting of Ge
CIRP Annals, 1998Abstract A specially designed ultraprecision instrument for nanometric cutting was used to investigate the cutting and thrust forces and the surfaces generated in the orthogonal cutting of Ge. Single crystal diamond tools with rake angles of 0°, −15°, −30°, and −45° were used over a range of depths of cut below 500 nanometers.
D.A. Lucca, P. Chou, R.J. Hocken
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