The fuzzy-nets based approach in predicting the cutting power of end milling operations

dc.contributor.advisor Joseph C. Chen Chang, Chuan-Teh
dc.contributor.department Industrial Education and Technology 2018-08-23T07:25:53.000 2020-06-30T07:15:41Z 2020-06-30T07:15:41Z Wed Jan 01 00:00:00 UTC 1997 1997
dc.description.abstract <p>Process planning is a major determinant of manufacturing cost. The selection of machining parameters is an important element of process planning. The development of a utility to show the cutting power on-line would be helpful to programmers and process planners in selecting machining parameters. The relationship between the cutting power and the machining parameters is nonlinear. Presently there is no accurate or simple algorithm to calculate the required cutting power for a selected set of parameters. Although machining data handbooks, machinability data systems, and machining databases have been developed to recommend machining parameters for efficient machining, they are basically for general reference and hard to use as well;In this research, a self-organizing fuzzy-nets optimization system was developed to generate a knowledge bank that can show the required cutting power on-line for a short length of time in an NC verifier. The fuzzy-nets system (FNS) utilizes a five-step self-learning procedure. A generic FNS program consisting of fuzzification and defuzzification modules was implemented in the C++ programming language to perform the procedure. The FNS was assessed before an actual experiment was set up to collect data;The performance of the FNS was then examined for end milling operations on a Fadal VMC40 vertical machining center. The cutting force signals were measured by a three-component dynamometer mounted on the table of the Fadal CNC machine with the workpiece mounted on it. Amplified signals were collected by a personal computer on which an Omega DAS-1401 analog-to-digital (A/D) converter was installed to sample the data on-line. Data sets were collected to train and test the system. The results showed that the FNS possessed a satisfactory range of accuracy with the intended applications of the model. The values of cutting power predicted by the FNS were more accurate than the formula values. Compared to the FNS system, dynamometers and amplifiers are very expensive. Thus, most of them could be replaced with the FNS.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 12779
dc.identifier.contextkey 6510254
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/11780
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 18:57:58 UTC 2022
dc.subject.disciplines Artificial Intelligence and Robotics
dc.subject.disciplines Industrial Engineering
dc.subject.keywords Industrial education and technology
dc.title The fuzzy-nets based approach in predicting the cutting power of end milling operations
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication dissertation Doctor of Philosophy
Original bundle
Now showing 1 - 1 of 1
2.71 MB
Adobe Portable Document Format