Spelling suggestions: "subject:"anufacturing processes -- aautomation"" "subject:"anufacturing processes -- andautomation""
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Conceptual design of a fixture-based reconfigurable spot welding systemSequeira, Michael Allan 03 1900 (has links)
Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2009. / This thesis details the conceptual design of a fixture-based, reconfigurable, automated spot welding system aimed at manufacturing various sub-assemblies of circuit breakers. The welding operations are currently done using manual welding equipment, making this stage of the assembly process highly labour intensive. A range of product models and variants are assembled in quantities requiring frequent change-overs. Low-cost automation within a developing country’s manufacturing industry, more specifically within the Republic of South Africa, is the target context. The chosen design restriction, of incorporating a part fixturing design approach, distinguishes this research from F. S. D. Dymond’s work, who addressed the same problem while restricted to a fixtureless assembly approach. A conceptual layout design was developed to address part feeding, manipulation, transportation, fixturing and welding requirements, for an entire breaker model range. A simulation model for three possible layouts of the selected conceptual design provided a means to investigate each layout’s ability to tolerate and balance variation in production requirements, and to establish objective comparative performance data. This showed that the optimal configuration consists of four single loop layout systems. The thesis concludes that the final concept possesses the flexibility to produce the primary product range. Reconfiguration for production beyond this range is assisted by the modular nature of the layout. Ultimately, a reconfigurable design should focus on a properly selected base of core product ranges, providing an expandable and reusable system. The system can be supported by manual assembly stations which handle highly variant, incompatible product ranges.
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Low cost intelligent automation (LCIA) and process analysis methodology with implementation examples at the company 'Festool GmbH Deutschland'Kreisel, Bjorn 12 1900 (has links)
Thesis (MBA)--Stellenbosch University, 2002. / ENGLISH ABSTRACT: This document describes the different possibilities of Low Cost Intelligent
Automation (LCIA)and process analysis for companies in the processing
industry. These techniques can be used in production and assembly to reach
a higher productivity and to maintain the company's competitiveness.
Productivity is very important for any company, because it influences the
profit.
LCIA means using cheap solutions to automate processes in assembly and
production. Cheaper machines payoff much faster. This is important,
because life cycles are becoming shorter and shorter. With LCIA more
manual processes can be automated. This is an advantage especially in
countries with high labour costs.
Process analysis helps to optimise processes in a company. To reach this
goal it is essential to analyse processes systematically. This helps to gather
detailed information about manufacturing defects and where they originated
from. With these information it is much easier to eliminate the source of
error and to reduce the number of defective products. Less errors in a
production process lead to higher quality and productivity.
The company "Festool GmbH Deutschland" serves as an example for using
the described methods. The presented examples for LCIA are simple
solutions to automate manual processes in the assembly division. The
process of a fully automated machine serves as an example to illustrate the
different aspects of a process analysis in this company.
The methodologies presented in this document can be used to achieve
improvements especially in productivity. Therefore any company coming
from a labour intensive industry should think about integrating LCIA and
process analysis into their continuous improvement strategy. / AFRIKAANSE OPSOMMING: Hierdie dokument beskryf die verskillende moontlikhede van Lae Koste
Intellegente Automasie (LKIA)en die proses analise vir maatskappye in die
vervaardiging industrie. Hierdie metodes kan gebruik word in produksie en
montering om hoër produktiwiteit te verkry sowel as die maatskapy se
mededingendheid te handhaaf. Produktiwiteit is baie belangrik vir enige
maatskappy, want dit beïnvloed die winsgewindheid. LKIA beteken die
gebruik van goedkoop oplossings om prosesse te automatiseer in montering
en produksie. Goedkoper masjiene word vinniger afbetaal. Dit is belangrik,
want die lewenssiklus van beide produkte en masjiene word al korter. Met
LKIA kan meer handprosesse ge-automatiseer word. Dit is 'n voordeel veral
in lande met hoë arbeidskostes. Proses analise help om die prosesse in 'n
maatskappy te optimiseer. Om hierdie doel te bereik is dit belangrik om
prosesse sistematies te analiseer. Bogenoemde help om gedetaileerde
informasie in te samel rondom vervaardigings defekte sowel as die oorsprong
daarvan. Met hierdie informasie is dit makliker om die oorsprong van foute
uit te skakel en om die getal foutiewe produkte te verminder. Minder foute
tydens die vervaardigings proses ly tot 'n hoër kwaliteit en produktiwiteit.
Die maatskappy "Festool GmbH Deutschland" dien as 'n voorbeeld vir die
gebruik van die beskryfde metodes. Die voorgestelde voorbeelde vir LKIA is
eenvoudige oplossings om die handprosesse in die monterings afdeling te
outomatiseer. Die proses van 'n ten volle ge-automatiseerde masjien, dien as
'n voorbeeld om die verskillende aspekte van proses analise in hierdie
maatskappy te illustreer.
Die metodologie wat gebruik is in die dokument, kan gebruik word om
verbeteringe veral in produktiwiteit te bewerkstellig. Dus kan enige firma in
'n arbeidsintensiewe industrie gebruik maak van die integrasie van LKIA en
proses analise in sy deurlopende verbeterings strategie.
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Design and analysis of agent-based FMS control systemsFan, Chi-kit., 樊智傑. January 2005 (has links)
published_or_final_version / abstract / Industrial and Manufacturing Systems Engineering / Doctoral / Doctor of Philosophy
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Complex materials handling and assembly systems.January 1979 (has links)
Report covers June 1, 1976-July 31, 1978. / Each v. has also a distinctive title. / National Science Foundation. Grant NSF/RANN APR76-12036 National Science Foundation. Grant DAR78-17826
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Complex materials handling and assembly systems.January 1979 (has links)
Report covers June 1, 1976-July 31, 1978. / Each v. has also a distinctive title. / National Science Foundation. Grant NSF/RANN APR76-12036 National Science Foundation. Grant DAR78-17826
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Complex materials handling and assembly systems.January 1979 (has links)
Report covers June 1, 1976-July 31, 1978. / Each v. has also a distinctive title. / National Science Foundation. Grant NSF/RANN APR76-12036 National Science Foundation. Grant DAR78-17826
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Complex materials handling and assembly systems.January 1979 (has links)
Report covers June 1, 1976-July 31, 1978. / Each v. has also a distinctive title. / National Science Foundation. Grant NSF/RANN APR76-12036 National Science Foundation. Grant DAR78-17826
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Complex materials handling and assembly systems.January 1979 (has links)
Report covers June 1, 1976-July 31, 1978. / Each v. has also a distinctive title. / National Science Foundation. Grant NSF/RANN APR76-12036 National Science Foundation. Grant DAR78-17826
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Complex materials handling and assembly systems.January 1979 (has links)
Report covers June 1, 1976-July 31, 1978. / Each v. has also a distinctive title. / National Science Foundation. Grant NSF/RANN APR76-12036 National Science Foundation. Grant DAR78-17826
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Complex materials handling and assembly systems.January 1979 (has links)
Report covers June 1, 1976-July 31, 1978. / Each v. has also a distinctive title. / National Science Foundation. Grant NSF/RANN APR76-12036 National Science Foundation. Grant DAR78-17826
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