Results 81 to 90 of about 2,862,029 (221)
A Comparitive Study of CNC Milling Cutting Path Strategies
مجلة النهرين للعلوم الهندسية, 2017 This paper investigates the effect of cutter path used in the milling process on the produced surface roughness using two different tools. The cutting paths which are named as; one directional, zigzag , Morph, overlap spiral and spiral are considered as ...
Ali Abbar Khleif +2 more
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Surface Generation and Fabrication of Roller Gear Cam with Spherical Rollers
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2008 This paper derived the surface profile equations and the meshing equations of the spherical meshing elements from the homogeneous coordinate transformation matrix and the conjugate surface theory proved by the envelope theory. In the machining aspect, we
Shang-Liang CHEN, Shih-Fong HONG
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Debt limits and endogenous growth [PDF]
, 2005 This paper studies the consequences on growth and welfare of imposing limits to public borrowing. In the model economy, government spending may play two different roles, either as input in the production function, or providing services directly in the ...
Blas Pérez, Beatriz de
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Establishing a Novel Model for 5-Axis Milling with a Filleted End Mill
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012 This paper focuses on the mathematical modeling for 5-axis milling with a filleted end mill. Several coordinate systems are introduced to describe the relationship between a cutter orientation and a machined surface.
Tsutomu SEKINE +2 more
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Reachability cuts for the vehicle routing problem with time windows [PDF]
This paper introduces a class of cuts, called reachability cuts, for the Vehicle Routing Problem with Time Windows (VRPTW). Reachability cuts are closely related to cuts derived from precedence constraints in the Asymmetric Traveling Salesman Problem ...
Lysgaard, Jens
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Automorphisms of the Torelli complex for the one-holed genus two surface
, 2013 Let S be a connected, compact and orientable surface of genus two having exactly one boundary component. We study automorphisms of the Torelli complex for S, and describe any isomorphism between finite index subgroups of the Torelli group for S.
Kida, Yoshikata, Yamagata, Saeko
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Finding Fullerene Patches in Polynomial Time
, 2009 We consider the following question, motivated by the enumeration of fullerenes. A fullerene patch is a 2-connected plane graph G in which inner faces have length 5 or 6, non-boundary vertices have degree 3, and boundary vertices have degree 2 or 3.
Bonsma, Paul, Breuer, Felix
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Intelligent shearer cutting control based on process driven technology
Gong-kuang zidonghuaThe traditional shearer cutting control lacks analysis of the state of the shearer drum, resulting in low quality of cutting template generation. It does not fully consider the undulation of the working face and geological environmental conditions, which
ZHENG Chuang, LI Danning, FENG Yinhui
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Journal of Mechanical Engineering and Sciences, 2014 Metal matrix composite (MMC) is a combination of two or more materials in a metal matrix, and is being widely used nowadays due to its excellent properties.
Mohd Hadzley Abu Bakar +6 more
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Cutting Path Planning for Ruled Surface Impellers
Chinese Journal of Aeronautics, 2008 AbstractAt present, most commercial computer-aided manufacturing (CAM) systems are deficient in efficiency and performances on generating tool path during machining impellers. To solve the problem, this article develops a special software to plan cutting path for ruled surface impellers. An approximation algorithm to generate cutting path for machining
Quan, Liang +3 more
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