Results 21 to 30 of about 4,489,694 (277)
Effect of tool angle in nanocutting of single crystal GaN using diamond cutter
Jin'gangshi yu moliao moju gongchengObjectivesSingle-crystal gallium nitride (GaN) is a pivotal semiconductor material widely utilized in high-power, high-frequency electronic devices, and optoelectronic applications.
Yongqiang WANG +4 more
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Effect of Rake Angle on Stress, Strain and Temperature on the Edge of Carbide Cutting Tool in Orthogonal Cutting Using FEM Simulation [PDF]
ITB Journal of Engineering Science, 2010 Demand for higher productivity and good quality for machining parts has encourage many researchers to study the effects of machining parameters using FEM simulation using either two or three dimensions version.
Hendri Yanda +2 more
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Machining force comparison for surface defect hard turning and conventional hard turning of AISI 52100 steel [PDF]
INCAS Bulletin, 2021 In this article, a recently developed method called surface defect machining (SDM) for hard turning has been adopted and termed surface defect hard turning (SDHT). The main purpose of the present study was to explore the impact of cutting parameters like
P. UMAMAHESWARRAO +2 more
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Development of a New Micro Drilling Tool with H-Shaped Chisel Edge
Metals, 2023 In order to improve the tool life and micro-hole machining quality, the H-shaped chisel edge micro-drill (HCE-MD) was developed in this paper. The HCE-MD was characterized by the inner edge formed through the chisel edge thinning.
Yue Ma +9 more
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Geometric nonlinearities of aircraft systems [PDF]
, 2008 Nonlinearities due to geometric effects, in particular, via angular variables that are not small, are important for aircraft operation. Geometric nonlinearities have a strong effect on the dynamics of the aircraft system under consideration, and they are
Thota, P +8 more
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Micromachines, 2020 Grinding at the nanometric level can be efficiently employed for the creation of surfaces with ultrahigh precision by removing a few atomic layers from the substrate. However, since measurements at this level are rather difficult, numerical investigation
Nikolaos E. Karkalos +1 more
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Analysis of Surface Characteristics and Spoke-shaped Removal through Ultra-precision Machining of Germanium Materials [PDF]
한국정밀공학회지, 2023 Germanium, an optical material, has high transmittance and refractive index and low light scattering in the infrared region, and research is being conducted to utilize it in various industrial fields.
Joong kyu Ham +9 more
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Research on Metal Cutting by Negative Rake Angled Tool
Journal of the Japan Society of Precision Engineering, 1956 すくい角の変化により切削抵抗は変化する。すなわちすくい角の減少によつてせん断角の減少をともない,切削抵抗も増加する。しかしすくい角の変化によつても切刄と切屑間の摩擦力は変らない。すくい面の法線力はすくい角の減少とともに増大する。このことは従来の摩擦係数がすくい角の函数として表現されたことと関係がある。またすくい角が負となると,せん断角の減少によるせん断ひずみの増加と,摩擦力の水平分力がすくい角の負のために方向が逆となり,それだけ切削抵抗が減少することなどの相互によつて,すくい角が負となつても,すくい角の小さい問は余り切削抵抗が増加せず,かえつて減少する場合がある。また切削速度が増加すると,切削温度が上昇し摩擦力はやや減少し,ひずみ速度増加のために起る諸現象は不明であるが切削抵抗は減少する ...
YOKOYAMA, Taketo, HASHIMOTO, Fumio
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Cutting Forces, Chips Formation and Surface Roughness in Rock Cutting Using Negative Rake Angle [PDF]
Manufacturing Technology, 2020 This research pertains to rock cutting used negative rake angle. The parameters used are negative rake angles of 0o, -5o, -10o, -15o, -25o, -30o, and -40o. Negative rake angle is known to play an important role in rock machining. Negative rake angle produces more chips powder in front of the tool surface. The interaction between these particles affects
HERMAWAN, Yuni +3 more
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A Study on the Cutting Mechanism with Large Negative Rake Angle
Journal of the Japan Society of Precision Engineering, 1978 In this paper, experimental results in low speed machining on lead with a wide range ofnegative rake angle of a tool (0--75deg.) are presented. During cutting, the deformation process of grid lines on the side of a test-piece was observed through the side glass restricting the side-flow of the material in order to clarify the behavior of the material ...
KITA, Yoshihiro +2 more
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