Results 21 to 30 of about 13,005 (292)
International Journal of Lightweight Materials and Manufacture, 2019 Geometrical defects are one of the main problems in machining of carbon fiber reinforced polymer (CFRP) laminates Helical milling is a brand new machining process and a kind of manufacturing method that helical tool movement is added and results in ...
Saeid Amini +2 more
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Applied Sciences, 2023 The helical contour motion accuracy of feed drive axes is important for thread milling operations in computer numerical control (CNC) machine tools. However, the motion dynamics and external disturbances significantly affect the contour motion results ...
Syh-Shiuh Yeh, Wei-Jia Jiang
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Steady-state MreB helices inside bacteria: dynamics without motors [PDF]
, 2007 Within individual bacteria, we combine force-dependent polymerization dynamics of individual MreB protofilaments with an elastic model of protofilament bundles buckled into helical configurations.
Andrew D. Rutenberg +6 more
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International Journal of Lightweight Materials and Manufacture, 2023 Conventional drilling has been widely used for making holes in structural materials. However, drawbacks like high cutting forces, poor surface finish, high cutting temperatures, excessive tool wear, and undesirable burr formation while drilling magnesium
Raviraja Adhikari +3 more
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Simulation of low rigidity part machining applied to thin-walled structures [PDF]
, 2010 The aim of this study is to evaluate the modelling of machining vibrations of thin-walled aluminium work- pieces at high productivity rate. The use of numerical simulation is generally aimed at giving optimal cutting conditions for the precision and the ...
Arnaud, Lionel +4 more
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Study on the influence of helical milling parameters on surface roughness of titanium alloy
Journal of Hebei University of Science and Technology, 2015 As a new technology, helical milling has been widely used in hole-making of titanium alloy, and the surface roughness is an important indicator for evaluating the quality of titanium alloy hole.
Chunhui JI +5 more
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Hole making process of carbon fiber reinforced polymer (CFRP) using end mill cutting tool [PDF]
, 2012 This paper presents an alternative way of producing a hole by using a helical milling concept on a carbon fiber reinforced polymer (CFRP). Delamination is a major problem associated with making a hole by drilling on the CFRP.
Jamil, M. F. M. +5 more
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Helical Feed Milling with MQL for Boring of Aluminum Alloy
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2008 MQL is applied to the helical feed milling hole-making process of aluminum alloy. It is difficult to drill on aluminum alloy without cutting fluid because the adhesion to the tool leads to a chip jam, the tool breakage or low accuracy.
Hiroyuki SASAHARA +2 more
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Hole-making processes and their impacts on the microstructure and fatigue response of aircraft alloys [PDF]
, 2018 A comparative study on conventional drilling and helical milling has been reported under the context of aircraft alloy hole making. The impacts of these two different machining processes on the microstructure and fatigue performance of different aircraft
Doyle, Patrick +7 more
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Deformation analysis and hole diameter error compensation for hybrid robot based helical milling
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2019 As an innovative machining process for hole-making, helical milling (also known as orbital drilling) presents great potential in machining aircraft structures due to temperature and cutting force reduction, flexible kinematics, and improved borehole ...
Hao LI +4 more
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