Results 271 to 280 of about 121,508 (306)
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Abrasive and Cutting Element Use in Friction Element Welding
Volume 2A: Advanced Manufacturing, 2021Abstract Increasing awareness of the global warming effects of greenhouse gas emissions has caused governments to impose strict regulations requiring significant improvements in vehicles’ fuel economy. These regulations have required automotive manufacturers to revise traditional designs.
Tyler J. Grimm +2 more
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Influence of Alloying Elements on the Laser Cutting Process
Physics Procedia, 2015 This paper presents an experimental investigation into how different alloying elements affect the laser-oxygen cutting process. Small variations in chemical composition of the material can lead to major changes in the overall laser-oxygen cutting process.
John Powell
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A finite element model for ultrasonic cutting
Ultrasonics, 2006Using a single-blade ultrasonic cutting device, a study of ultrasonic cutting of three very different materials is conducted using specimens of cheese, polyurethane foam and epoxy resin. Initial finite element models are created, based on the assumption that the ultrasonic blade causes a crack to propagate in a controlled mode 1 opening, and these are ...
Margaret, Lucas +3 more
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Robust eXtended finite elements for complex cutting of deformables [PDF]
ACM Transactions on Graphics, 2017 In this paper we present a robust remeshing-free cutting algorithm on the basis of the eXtended Finite Element Method (XFEM) and fully implicit time integration.
Dan Koschier, Jan Bender
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High Endurance Cutting Elements
IADC/SPE Drilling Conference and Exhibition, 2014Abstract Unconventional oil and gas exploration has created ever-greater demands on milling technology as wells have gone deeper and the number of frac zones has increased. A new cutting element has been developed that can mill up to double the previous number of composite plugs or frac seats, allowing most wells to be milled in a single
Cal Stowe, Andrew Ponder
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Explicit dynamics simulation of blade cutting of thin elastoplastic shells using “directional” cohesive elements in solid-shell finite element models [PDF]
Computer Methods in Applied Mechanics and Engineering, 2015 The intentional or accidental cutting of thin shell structures by means of a sharp object is of interest in many engineering applications. The process of cutting involves several types of nonlinearities, such as large deformations, contact, crack ...
Umberto Perego
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Strands in Sections of Sieve Elements Cut in a Cryostat
Nature New Biology, 1971Observations of these strands are consistent with the idea of trans-cellular strands of cytoplasm in sieve tubes.
P, Jarvis, R, Thaine
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Finite Element Simulation of Minimum Cutting Thickness in Micro-Cutting
Materials Science Forum, 2016The cutting edge radius and cutting thickness as well as feed rate are in the same order of magnitude in micro-cutting. So it will appear a situation that the chip cannot be formed when the cutting thickness is less than a certain value which is the minimum cutting thickness.
Pu Zhang +6 more
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Elemental and pegamento: the final cut applying the MDA pattern
Proceedings. Eighth IEEE International Enterprise Distributed Object Computing Conference, 2004. EDOC 2004., 2004We provide an investigation of the applicability of the Model Driven Architecture to the development of a technical architecture in a specific domain, viz: contract monitoring. We define MDA in terms of a single basic pattern, which is then composed in several ways to represent the behaviour of a large range of MDA tools.
Duddy K., Lawley M., Milosevic Z.
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