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Framtagning av standardiserat arbetssätt och kitlådor för montering av lågtrycksturbiner
University West, Department of Engineering Science, Division of Industrial Engineering and Management, Electrical- and Mechanical Engineering.
University West, Department of Engineering Science, Division of Industrial Engineering and Management, Electrical- and Mechanical Engineering.
2019 (Swedish)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesisAlternative title
Creation of standardized working methods and kit boxes for the assembly of Low Pressure Turbine (English)
Abstract [sv]

Detta examensarbete har genomförts på GKN Aerospace på avdelningen Low Pressure Turbine (LPT), där komponenter till lågtrycksturbiner tillverkas. Rapporten redovisar framtagning av standardiserat arbetssätt för montering av de LPT:er som tillverkas till flygplansmotorerna Leap 1B och Leap A/C i form av Job Training Documents, vilket GKN förkortar JTD. En kitlåda för materialet som ska monteras har även utformats för respektive modell. Då det inte har funnits någon standard har det lett till monteringsfel samt kvalitetsbrister i produktionen. Den befintliga monteringslådan som tillhandahålls har varit bristfällig för operatörer samt kontrollanter som packar lådorna vilket har lett till förlängda monteringstider. Syftet med projektet har varit att kvalitetssäkra monteringsarbetet genom att skapa standardiserade arbetsinstruktioner. Utformning av kitlådorna har utförts i syfte att organisera upp monteringsdetaljerna i en bestämd struktur för att underlätta för operatörer och kontrollanter. En operationsbeskrivning med tillvägagångssätt tillhandahölls och användes som grund vid utformning av JTD:erna för att inte riskera att frångå den befintliga metoden. Intervjuer och observationer av operatörer och kontrollanter har även använts som stöd till de JTD:er som togs fram och utformningen av kitlådorna. Kitlådor återanvändes från en annan avdelning där inredningen sorterades och strukturerades upp med sortiment lådor i två olika storlekar. Dessa färgkodades, märktes och anpassades till materialets storlek och antal så att varje del som monteras fick en enskild plats. JTD:erna och kitlådorna gjordes i två versioner för att anpassas för montering av både Leap 1B och Leap AC. Lådorna testades i monteringen och JTD:erna granskades av operatörer innan påskrift gjordes. På grund av oplanerade stopp innan montering intervjuades och observerades inte alla operatörer som planerat. Kitlådornas utformning begränsades då det tillhandahölls befintliga lådor som återanvändes. Utifrån det resultat som tagits fram har målen med att utforma standardiserade arbetsinstruktioner samt utforma en kitlåda för att organisera upp samtliga detaljer uppfyllts.

Abstract [en]

This bachelor thesis has been executed at GKN Aerospace at the manufacturing department Low Pressure Turbine (LPT), also known as LPT. The thesis presents the creation of standardized working methods for the assembly of the LPTs, that are manufactured for the aircraft engines Leap 1B and Leap A/C. The standardized work has been compiled in Job Training Documents, also known as JTD. A kit box for the material that will be assembled has been designed for each model. Due to a nonexistent standard it has led to assembly failures and quality defects in the production. The existing assembly box has been inadequate for the operators and the controllers that pack the boxes which has led to longer assembly time. The purpose of this project has been to assure the quality of the work through creating standardized work instructions. The design of the kit box has been executed in order to organize the details of the assembly in a certain structure to facilitate for the operators and controllers. An operation description with course of action was provided and used as a basis for the design of the JTDs in order not to risk deviating from the existing method. Interviews and observations of operators and controllers have also been used for the JTDs and the design of the kit boxes. Kit boxes was reused from another department and assortment boxes was sorted and structured inside in two different sizes. These were coded with different colors, marked and fitted to the size and quantity of the material so that every piece that is being assembled has its own place. The JTDs and the kit boxes was made in two versions to adapt to the assembly of both Leap 1B and Leap A/C. The boxes were tested in the production and the JTDs was reviewed of the operators before signature was made. All of the operators were not interviewed and observed as planned because of the unplanned stops in the production. The shape of the kit box was limited because the existing boxes were reused. From the results that has been developed the goals for this thesis including creating standardized work instructions and design of a kit box to organize all the pieces has been achieved.

Place, publisher, year, edition, pages
2019. , p. 28
Keywords [sv]
Komponenter, GKN, lågtrycksturbiner
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:hv:diva-14068Local ID: EXM502OAI: oai:DiVA.org:hv-14068DiVA, id: diva2:1336720
Subject / course
Mechanical engineering
Educational program
Maskiningenjör
Supervisors
Examiners
Available from: 2019-07-23 Created: 2019-07-10 Last updated: 2019-07-23Bibliographically approved

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