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Analiza procesa zunanjega lakiranja leče logotipnega pokrova z uporabo metode SPC
Todić, David (Author), Kramar, Davorin (Mentor) More about this mentor... This link opens in a new window

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Abstract
V podjetju, kjer poleg proizvodnje avtomobilskih žarometov in meglenk izdelujejo tudi radarske logotipne pokrove, v procesu predmontaže logotipnega pokrova robotsko zunanje lakirajo štiri leče naenkrat. Ker nanos laka z robotsko roko ni optimiziran za posamezno lečo, pri merjenju debeline laka prihaja do velikih razlik med posameznimi karakterističnimi točkami. Za analizo procesa smo izbrali metodo statističnega nadzora procesa (krajše SPC metoda), s katero ugotovimo, ali je proces stabilen ter sposoben proizvajati izdelke z lastnostmi, ki ustrezajo zahtevanim specifikacijam kupca. Po analizi obstoječega stanja smo ugotovili, da proces zunanjega lakiranja ni stabilen in sposoben dosegati zahtevanih rezultatov debeline laka. Po določenih izboljšavah smo proces zopet analizirali in dosegli bistveno boljše rezultate - tako pri stabilnosti kot tudi sposobnosti procesa.

Language:Slovenian
Keywords:kakovost, zagotavljanje kakovosti, statistični nadzor procesa, metoda SPC, kontrolne karte, histogrami, sposobnost procesa, orodja kakovosti
Work type:Master's thesis/paper (mb22)
Tipology:2.09 - Master's Thesis
Organization:FS - Faculty of Mechanical Engineering
Year:2019
Publisher:[D. Todić]
Number of pages:XXII, 107 str.
UDC:621.795.3:658.5(043.2)
COBISS.SI-ID:16930075 Link is opened in a new window
Views:413
Downloads:56
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Secondary language

Language:English
Title:Process analysis of outer lacquering of the logo cover's lens using the SPC method
Abstract:
In the company, where, beside the production of front and back lamps and foglamps, they are also manufacturing radar car emblems, there is a process of preassembly of logo emblem, where 4 lenses were being robotically lacquered at the same time. This type of lacquering is not optimized for each of the lenses, which results in different lacquer thickness in the characteristic measuring points. For the process analysis we decided to choose a method of statistical process control (shorter SPC method), which enables us to discover, if the process we are analyzing is stable and capable of producing the products with specifications that match customer demands and needs. After the analysis of the process using SPC method, we discovered that the lacquering process is not stable neither capable of producing the products with demanded specifications. After some adjustments in the process, we again analyzed the process and achieved much better results, both in process stability and process capability.

Keywords:quality, quality assurance, statistical process control, SPC method, control charts, histograms, process capability, quality tools

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