![]() ![]() However, the applied path generation principles remain valid in these cases as well, i.e. Furthermore, I did not cover the treatment of islands and semi-open pockets. The methods presented do not consider the possibility of multi-tool machining or multi-immersion single-tool roughing. However, with the help of the developed algorithm, it would also be possible to optimize the tool diameter, the cutting speed and axial depth of cut, because by running it several times it is possible to perform a secondary optimization. For determining the optimal tool path, the optimization criterion was to achieve minimum machining time, and the optimization constraints were to control the tool load and the path curvature. During the development of the path generation algorithm, I considered the pocket contour, the tool diameter, the cutting speed, the axial depth of cut, the desired cutter engagement and the allowable feed rate for the given engagement as input parameters. I implemented spiral-like and trochoidal strategies by considering the development of the cutter engagement and the path curvature. The main objective of my research was to develop a tool path generation strategy that provides a uniform tool load that can be used to rough 2.5D pockets bounded by an arbitrarily shaped contour and provides minimal machining time at a given load. Furthermore, burr measures reviewed are compared and discussed based on an experimental data set. ![]() The main advantages and disadvantages of burr measures are highlighted and their possible future applications and prospects are also considered. In this paper, burr formation mechanisms, burr measurement methods and burr parameters are critically reviewed, compared and discussed. Recent key papers on burr formation, measurement and evaluation in CFRPs are reviewed in an attempt to standardise and classify burr characterisation related expertise. ![]() Nevertheless, there is no agreement on the measures and techniques of burr-evaluation in CFRPs. In both the industry and academia, digital processing of optically captured images is the most common evaluation method for burr-characterisation. The deburring process often leads to significantly increased operation time and cost. Even if it does usually not weaken the strength of composite materials, it is recommended to be removed. This study found no relevant objection to using recycled CFRP from the point of view of drilling-induced burrs and microstructure damage.īurr is one of the main macro-geometrical types of damage concerning machined features of carbon fibre reinforced polymer (CFRP) composites. Micro- and macro-sized geometrical defects in both recycled and virgin milled CFRP were negligible. The analysis of variance (ANOVA) results suggest that the formation of drilling-induced burrs in CFRP reinforced by recycled chopped and nonwoven mats is less pronounced than in virgin CFRP. The burr characteristics and microstructure were analysed by optical and scanning electron microscopy. Six different CFRP composites were tested at different feeds. A total of 180 drilling experiments were carried out using uncoated solid carbide cutting tools. In this study, drilling-induced micro and macro-sized geometrical defects were analysed and compared in virgin and recycled CFRP. Despite the promising early results concerning the material properties of recycled CFRP, there is no published knowledge available about their machinability. MiniTube requires you to securely log in to your YouTube account via Google to offer a more personalized experience.Ĭontinuous Improvements / Feedback: While this is a very new app, we are looking forward to improving it continuously.Since governments encourage sustainability, industries are making great efforts to reuse or recycle carbon fibre–reinforced polymer (CFRP) composites. As such, MiniTube does not send any information to our servers or store anything without your consent whatsoever. Privacy: We believe in the FULL privacy of all user data for each and every person. View what is currently trending (Popular) View stats for the channels you've added on the iOS App Like and Dislike videos (thumbs up and down) Find content via Search (videos, channels, playlists) Create beautiful Video Thumbnails with Thumbnail Creator Create and schedule watch list reminders View likes and dislike counts on a given video View related videos when watching a current video Add public channels to view their stats (subscriber and view counts) MiniTube helps you discover amazing videos from exciting channels / creators! ![]()
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