liu.seSearch for publications in DiVA
Change search
Refine search result
1 - 17 of 17
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1.
    Birgersson, Marcus
    Linköping University, Department of Management and Engineering. Linköping University, Department of Management and Engineering, Production Engineering .
    Reducering av ledtider samt framtagande av kalkylmodell2008Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Rimaster Kisa AB is a member of the Rimaster Group, the corporation was bought from Samhall AB in January 2007. The corporation is producing mechanichs needed by the Rimaster group as well for external costumers. Samhall AB is now functioning as a provider of labor for Rimaster Kisa, as the company is hiring personnel from Samhall AB. The company has earlier have had problems with their lead times being far too long. This has resulted in that the management decided to invest in a new edging press. Areas of work included in this thesis are, Investigating the investment of an edging machine, implementing of 5S and a new model of calculating prices of articles. The goal with the report is to reduce the corporations lead times.

    To reduce lead times the company has started working with 5S. This reports presents protocols to aid the employee responsible for the 5S work of the factory. The model for calculating prices is based on a model used by Rimaster Polen. The model has been modified for the needs of the factory in Kisa. The model calculates with parameters for the potential production capability, using this leads to a margin of error with prices higher than needed to be. The company should always be aware of this margin of error so that they do not loose clients because of it. When using this model the company protects themselves for the future. They are not as dependent of the cheap labor gained by Samhall AB. The model calculates cost factors ready to be implemented in the MRP-system, prices are then calculated with the MRP-system.

    Conclusion: The company should accept the offer made by Amada Implement the model for calculating prices fully, but be aware of its margin of error. Continue the work with 5S that has already been started. 

  • 2.
    Ekwall, Johan
    et al.
    Linköping University, Department of Management and Engineering, Production Engineering .
    Helmenius, Fredrik
    Linköping University, Department of Management and Engineering, Production Engineering .
    Simulering, ett alternativ inom produktionsplanering?2009Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Typically, when Faurecia in Torsås are planning a new assembly line, one of the steps is to build a full-scale model of the line in card board, a form of mock-up planning. Faurecia has shown interest in finding an alternative methodology. The purpose was to explore the possibility of replacing today's cardboard based mock-up planning with models in a digital simulation environment.

    The purpose of the thesis has been to answer some of these complex questions; What are the benefits of using a simulation tool? In what way can we use it? If we choose to use a simulation tool, in what way does it affect our way of planning an assembly line? What are the advantages and disadvantages? Are there any economical and social aspects?

    Our results made us realize that a digital simulation tool does not replace the card board. On the other hand simulation could be used as a complement. Card board exercises and simulations play two different roles in the development of an assembly line. The use of card board is an excellent example of how you can generate a wide range of creative solutions at an early stage of the design process. This offers the possibility to create and evaluate several different concepts during a short period of time.

    We believe that the benefits of a simulation tool come in handy at a later stage of the design process, when a conceptual solution is selected. The simulation tool will be able to evaluate the solution and identify where problems may occur. The output of the simulation tool may also be used as a communication tool, internally as well as externally.

  • 3.
    Elo, Kristofer
    et al.
    Linköping University, Department of Management and Engineering, Production Engineering. Linköping University, The Institute of Technology.
    Karlsson, Julia
    Lydebrandt, Kristian
    Sundin, Erik
    Linköping University, Department of Management and Engineering, Assembly technology. Linköping University, The Institute of Technology.
    Automation of Plastic Recycling – A case study2009In: Proceedings of EcoDesign 2009, Sapporo, Japan, Springer, 2009, p. 935-940Conference paper (Refereed)
    Abstract [en]

    Plastic recycling is an increasingly important issue intoday’s society. The number of plastics and theirvariation with additives has increased lately, affecting inturn the possibilities for plastic material recycling.However, trends in e.g. Japan show a reduction in thenumber of plastics used in e.g. household appliances.This reduction has been put into force in order to easeplastic recycling for those kinds of products.In Sweden, more efforts are put on collecting plasticfor material recycling. The intention for doing this is tohave more plastic material recycled rather thanincinerated and energy recovered. This paper deals witha conceptual investigation and development of anautomatic plastic recycling plant in Sweden. In order toreach a recycling plant that fulfills required technical andeconomic specifications, a large investigation of existingtechniques was performed. This investigation revealedmany techniques described in research, but also whichtechniques that were used by recycling industry today.The results of these studies became a conceptual andpotential well-functioning material recycling plant forplastics which is fully automatic. However, the focus ofthis development has been to sort out and materialrecycle the most common plastics, namely polyetene(LDPE and HDPE), polypropylene (PP), polyethylene(PET), polyvinyl chloride (PVC) and polystyrene (PS)whereas the other plastics have been sorted out forenergy recovery. Having these delimitations, a goodrecycling process plant can be achieved.

  • 4.
    Elo, Kristofer
    et al.
    Linköping University, Department of Management and Engineering, Production Engineering. Linköping University, The Institute of Technology.
    Sundin, Erik
    Linköping University, Department of Management and Engineering, Assembly technology. Linköping University, The Institute of Technology.
    Conceptual Process Development of Automatic Disassembly of Flat Panel Displays for Material Recycling2011In: Proceedings from the International Conference on Remanufacturing 2011, Glasgow, UK, University of Strathclyde, 27 - 29 July 2011, 2011, p. 187-197Conference paper (Refereed)
    Abstract [en]

    Sales of television sets and computer monitors with flat panel displays have increased dramatically in recent years, and are expected to result in approximately 2.5 billion liquid crystal displays in Europe in the near future. A large investment will be required in Europe as well as globally to handle the large numbers of flat panel displays that are beginning to enter the waste stream today.Given the long-term effects of increased energy and raw material costs, as well as political directives to effect climate change and environmental pollution, it will be a necessity as well as a business opportunity to recycle both the raw materials and components from electronics waste. It is already an accepted truth that “today’s waste is tomorrow’s resources”.The research for this paper aims at exploring what process concepts there are for making an automatic recycling process of flat panel displays. The recycling process shall be both economical and practical to implement in the existing recycling industry.This paper is based on the requirements and needs facing Swedish electronic recycling companies due to the growing amount of electronic waste. This includes the material that will enter an automated flat panel display recycling facility, together with the material and components of interest.The conceptual process has been developed by conducting literature reviews and interviews with recycling companies, as well as by performing practical tests and financial calculations. The result of the evaluation of concepts shows that a circle-saw concept is most suitable, since it has high capacity and provides a good working environment in comparison to the other concepts studied.

  • 5.
    Elo, Kristofer
    et al.
    Linköping University, Department of Management and Engineering, Production Engineering. Linköping University, The Institute of Technology.
    Sundin, Erik
    Linköping University, Department of Management and Engineering, Production Engineering. Linköping University, Department of Management and Engineering, Assembly technology. Linköping University, The Institute of Technology.
    Evaporation of Mercury from CCFLs during Recycling of LCD Television Sets2013In: Proceedings of EcoDesign 2013 International Symposium, 2013Conference paper (Other academic)
    Abstract [en]

    The element mercury is one of the most hazardous substances known. Still, it is common in the air, water, soil and products we use in our daily life. LCD TVs is one of these products. To prevent the mercury in the LCD TVs from polluting the environment, the LCD TVs are recycled. This is done through automatic shredding or manual disassembly where the mercury can spread in the work environment, the process equipment or to the recycled material. This is due to broken CCFLs in the LCD TVs which contain the mercury. The aim of this paper is to investigate, through a literature review and an empirical study, the amount of mercury released into the work environment due to broken CCFLs from LCD TVs. In the literature review there were found the amount of mercury other researchers has found in CCFLs from LCD TVs, and also where the mercury was found. In the empirical study, the amount of mercury in a LCD due to broken CCFLs were measured and validates the results from other researcher and states that the mercury is difficult to predict.

  • 6.
    Elo, Kristofer
    et al.
    Linköping University, Department of Management and Engineering, Production Engineering. Linköping University, The Institute of Technology.
    Sundin, Erik
    Linköping University, Department of Management and Engineering, Assembly technology. Linköping University, The Institute of Technology.
    Requirements and needs of automatic material recycling of flat panel displays2010In: Proceedings of Going Green CARE INNOVATION 2010, 8th International Symposium, November 8-11, Vienna, Austria, paper 107 on CD., 2010, p. 107-107Conference paper (Refereed)
    Abstract [en]

    The amount of flat panel displays in the World is increasing and the day whenthe displays will start to end up in the waste stream in great number is getting closer. Themost common flat panel display, the liquid crystal display, contains liquid crystals, indiumand mercury. The capacity of the recycling plants is not dimensioned according to theamount of displays that needs to be recycled in the near future. To increase the capacity ofthe recycling plants and achieve a better work environment there is a possibility to automatethe recycling process in a greater extends comparing with today. The requirements andneeds of the automated processes are to handle; all incoming material, e.g. liquid crystaldisplays, plasma display panel, organic light emitted diode, other types of displays andother electronic waste, identify and separate the different incoming materials, disassemblethe material and separate the components and materials of interest.

  • 7.
    Hägg, David
    et al.
    Linköping University, Department of Management and Engineering, Production Engineering .
    Hofmeijer, Victor
    Linköping University, Department of Management and Engineering, Production Engineering .
    Analysis of a Production Cell using Production Simulation Tools2010Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This final thesis was performed at Ecole Nationale Supériure D’Arts et Métiers (ENSAM) in Lille, France. The aim of the thesis has been to use two different simulation tools to analyse an existing production cell with focus on industrial engineering. The possible use and the usability of the simulation tools are also studied. The models built for simulation have been used to gather data about the cell. After analyse and discussion about the data we came to the following conclusions.

    • The bottleneck in the cell is the Stäubli.
    • A cheap and simple way to improve the cell is by adding new decision points (sensors) to it. The most efficient location of the new decision points is before and after the Stäubli.
    • The production rate reaches its maximum rate for both settings with eight pallets.
    • If the improvements are implemented then there is no reason to change the speed of the conveyor. With basic settings the speed can be increased for better productivity.
    • The most efficient production type for short setup times is single, for both settings.
    • Delmia is useful for visual representation. It’s also useful for measurements of time and distance since the accuracy is very high. Delmia is useful as common platform when to discuss and explain thoughts and ideas about a project.
    • Flow simulation in Quest provides a great understanding of the production and the behaviour of the cell. It is very easy to get data in and out of the program and to compare results and impacts of changes.
  • 8.
    Johansen, Kerstin
    et al.
    Linköping University, Department of Management and Engineering, Wood Technology. Linköping University, The Institute of Technology.
    Lahdo, Gabi
    Linköping University, Department of Management and Engineering. Linköping University, The Institute of Technology.
    Elo, Kristofer
    Linköping University, Department of Management and Engineering, Production Engineering. Linköping University, The Institute of Technology.
    Furniture Manufacturing: Aspects on Assembling Chairs with a Two-Armed Robot2010In: 3rd CIRP Conference on Assembly Technologies and Systems: Responsive, customer demand driven, adaptive assembly / [ed] Terje K. Lien, Trondheim. Norway: Tapir Akademisk Forlag, 2010, p. 157-163Conference paper (Other academic)
  • 9.
    Johansson, Frederic
    Linköping University, Department of Management and Engineering, Production Engineering.
    Modern teaterteknik - en analys av automatiserat övermaskineri2009Independent thesis Basic level (degree of Bachelor), 15 credits / 22,5 HE creditsStudent thesis
    Abstract [en]

    A new theatre building is being constructed in Jönköping, Sweden. In one of the stages an automated flybar system needs to be installed but which system has yet to be decided. In this report you will find a pre-study of a general system and an analysis based upon several common systems installed in theatres and venues in Europe. The approach is to break down a general system into subfunctions and analyze them. The solutions to each subfunction is based on the ones presented to me visiting:

    • Theatertechnische Systeme, Tyskland

    • Stage Technologies, England

    • Trekwerk, Holland

    • Maquinas Iberica, Portugal

    • Visual Act, Sverige

    The purpose of this thesis is to describe a general system and analyze its functions and by doing so aid the decision making process.

  • 10.
    Karlsson, Oskar
    Linköping University, Department of Management and Engineering, Production Engineering .
    Styrsystem: För en forskningsutrustning2009Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The division of Engineering Materials at Linköping University, department of Management and Engineering, conducted a research project concerning Fatigue life of thermal barrier coatings during 2009. During this project equipment to provoke these fatigue failure by rapidly heating and cooling test subjects in cycles, was ordered.

    Design and manufacturing of the equipment was handled internally at LIU.

    The equipment was built using a furnace that is lowered and raised over the table where the test subject is placed. To keep the temperature of the furnace a lid slides in place to close the downward facing opening of the furnace when it is in the raised position. On this door there is nozzle that is used to cooling of the test subject by air.

    To make sure that the equipment can work independently you need an automation controller that can evaluate if movement can occur without danger of collisions. The control system also needs to monitor that all elements are performed according to plan.

    This degree project is based on a modular system from OPTO 22 and includes the configuration of a PLC that will be supplied with logic and a user interface.

    The degree project resulted in a graphic interface in which a user can set desired values for different parameters and get information about current values for them. Using the interface the user could also start and stop the running of cycles. An analog interface consisting of a start and stop button is also handled in the project.

    Logic has been created and tested using simulations of incoming signals. During these tests it managed to transform the equipment from standby to starting position for running cycles, running cycles that can be adapted by the user and to put the equipment in standby position when the user want to power down the system. Apart from this there is also routines to monitor that movements is actually done according to plan and communicates with external systems capable of sending signals. A routine that both transform digital alarms and translate numerical values representing different choices to text messages in the graphic interface has been created.

  • 11.
    Mandenius, Carl-Fredrik
    et al.
    Linköping University, Department of Physics, Chemistry and Biology, Biotechnology . Linköping University, The Institute of Technology.
    Björkman, Mats
    Linköping University, Department of Management and Engineering, Production Engineering . Linköping University, The Institute of Technology.
    PAT and QbD aspects on stem cell manufacture2009In: European Pharmaceutical Review Digital, no 1, p. 32-37Article in journal (Refereed)
  • 12.
    Morling, Jonas
    Linköping University, Department of Management and Engineering, Production Engineering .
    Ytrengöring av alfa-diamond: En studie och urval av ytrengöringsmetoder för hårda beläggningar2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This goal of the thesis´ is to surface finish a diamond with an appropriate method. The method should be more effective than manual sandblasting, the current method in use. The part is small and it has a vital track that must be surface cleaned. This puts great demands on effective methods. The methods that are mentioned theoretically in the thesis are automatic sandblasting, tumbling and laser cleaning. A couple of methods were tested and evaluated. Automatic sandblasting was found to be most effective. That method gave an equal result compared to the manual sandblasting but with a fraction of the time compared to manual sandblasting. Within the thesis a capital budgeting have been done.

    The conclusion of the thesis was that the automatic sandblasting machine should be used.

  • 13.
    Olsson, Jimmy
    Linköping University, Department of Management and Engineering, Production Engineering.
    Uppgradering av Sågstationer2011Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [sv]

    Det finns två stationer på Boxholm Stål AB med produktionssågar. Den ena är en bandsåg och två fasmaskiner med hanteringsutrustning för transport mellan såg och fasar samt en automatisk buntmaskin. Fasarna på den stationen är utslitna och håller inte de toleranser som Boxholm Stål AB har på sina produkter. En önskan att kunna planfräsa ändarna har också tillkommit vilket utrustningen i dagsläget inte klarar av. Det innebär att fasarna ska bytas ut. En utredning av vilka företag som kan leverera utrustning med önskad kravspecifikation har gjorts samt ett kostnadsförslag har inhämtats. Den andra stationen är en klingkap från början av 80-talet. Även den har fasmaskiner samt hanteringssystem men ingen automatisk buntmaskin. Den gamla klingkapen är utsliten och måste därför bytas ut. Säljare för olika sågar har kontaktas för att undersöka vilka som kan leverera en såg med önskad kravspecifikation. Tre säljare har träffats och samtliga har förslag på sågar som klarar de krav som ställts från Boxholm Stål AB. Bara en säljare har lämnat ett kostnadsförslag. Utöver det har en klockning av processer på stationen med bandsåg gjorts för att kartlägga eventuella flaskhalsar i stationen. Den klockning som hann göras visade att hanteringssystemet var ganska bra synkat med ca 30-35 sekunder per process. Det som tog längst tid var själva kapningen. Fasmaskinerna skapar en del spånor som sprätter runt en del vilket kräver städning. För att underlätta för operatören att städa kan man kapsla in fasen med plastduk så spånorna leds ner i spånlådan, lägga mattor eller en glatt beläggning på golvet. Mattorna fångar upp spånorna och sen kan mattorna skakas ur i en spånlåda. Ett glatt golv gör att spånorna blir lättare att sopa upp men är olämpligt eftersom det tillsammans med olja blir mycket halt.

  • 14.
    Ringkvist, Hans
    Linköping University, Department of Management and Engineering, Production Engineering .
    Kartläggning av tillverkningsflöden: Ett förbättringsarbete på CH Industry i Eskilstuna2009Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This bachelor thesis has been conducted at the Department of Management and Engineering, IEI, at the University of Linköping, for CH Industry in Eskilstuna. The purpose of this report is to map the most crucial products of the company by identifying the value stream and measuring the capacity utilisation for relevant machines. The report is limited to the analysis of the production flow of a total of 40 products. The most significant products for CH Industry are analysed by means of a value stream map for identification of the production process, the information flow and times in stockpiles.   

    The report is divided into six parts. The first half of the report describes the corporate enterprise of CH Industry, presents the theory behind the concept and also explains the methods used in the report. The second half describes how the analyses were carried out and the results are presented.  The final chapter contains a conclusion followed by a discussion.

    The report results in an extensive Excel document where the value stream is mapped and information about operation times, changeovers and capacity utilisation for the machine resources are identified. The mapping of the value stream reveals machine resources that from both a material flow and a transporting perspective are misplaced. Large sections of the details flow from blast resource 20 to milling machine recourse 57 and after that to the final inventory of goods. To the blast resource 20, more than half of the processed details come from the resource group ”Ämne” (laser cutter, stamping machine and cut-off saw).

    Strategically moving blast resource 20 and milling recourse 57 closer to each other would reduce transport distances, storage and lead times. The area where the old laser-cutting park was located would be suitable for this purpose.

    The pillar drills in the multi-operation resource 56 could be rearranged to a manual welding group and a manual bending press group. The operators for these resource groups could then do the broaching or drilling operation for smaller quantities before the actual bending or welding operation. This would eliminate stockpiles before and after the multi-operation resource and would reduce transport distances. 

    The value stream map indicates that the analysed article is overproduced. The article is manufactured in big quantities, which leads to long time in stockpiles and unnecessary handling. By manufacturing the article on customer’s demand lead times and capital tied up in stockpiles could be reduced.

  • 15.
    Sakao, Tomohiko
    et al.
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Berggren, Christian
    Linköping University, Department of Management and Engineering, Project Innovations and Entrepreneurship. Linköping University, The Institute of Technology.
    Björkman, Mats
    Linköping University, The Institute of Technology. Linköping University, Department of Management and Engineering, Production Engineering.
    Kowalkowski, Christian
    Linköping University, Department of Management and Engineering, Industrial Marketing and Industrial Economics. Linköping University, The Institute of Technology.
    Lindahl, Mattias
    Linköping University, Department of Management and Engineering, Environmental Technology and Management. Linköping University, The Institute of Technology.
    Olhager, Jan
    Linköping University, Department of Management and Engineering, Production Economics. Linköping University, The Institute of Technology.
    Sandin, Jörgen
    Linköping University, Department of Management and Engineering, Project Innovations and Entrepreneurship. Linköping University, The Institute of Technology.
    Sundin, Erik
    Linköping University, Department of Management and Engineering, Assembly technology. Linköping University, The Institute of Technology.
    Tang, Ou
    Linköping University, Department of Management and Engineering, Production Economics. Linköping University, The Institute of Technology.
    Thollander, Patrik
    Linköping University, Department of Management and Engineering, Energy Systems. Linköping University, The Institute of Technology.
    Witell, Lars
    Linköping University, Department of Management and Engineering, Quality Technology and Management. Linköping University, The Institute of Technology.
    Research on Services in the Manufacturing Industry based on a Holistic Viewpoint and Interdisciplinary Approach2011In: Functional thinking for value creation : proceedings of the 3rd CIRP International Conference on Industrial Product Service Systems / [ed] Jürgen Hesselbach and Christoph Herrmann, Springer, 2011, p. 27-32Conference paper (Other academic)
    Abstract [en]

    This paper begins by consolidating industrial challenges and research issues concerning Product/Service Systems obtained through various activities by the authors. Based on this, it points out the importance of the holistic view in further research in this area so that PSS providers do not fall into local optimization. The intent of this contribution to our research community includes shedding light on interesting issues that thus far have been relatively invisible and with narrower scope.

  • 16.
    Törnqvist, Martin
    Linköping University, Department of Management and Engineering, Production Engineering.
    Robotiserad montering av styrskåp2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med detta arbete var att undersöka möjligheterna för montering av ett styrskåp av modell Motoman NX100 NOC1. För detta användes simuleringsprogrammet DELMIA. Roboten som användes nådde inte alla montage om skåpet var stationärt. Därför prövades först ett antal olika förslag för att lösa detta problem genom att transportera skåpet. Det koncept som bedömdes som mest pålitligt användes sedan för att skapa en mer ingående simulering. Detta koncept bygger på en U-formad transportbana med växlingssektioner. Skåpet transporteras först så att montage kan ske på dess framsida. När skåpet har transporterats runt till motsatt sida om roboten, kan montage utföras på skåpets baksida. Konceptet inkluderar montering av skåpets huvudkomponenter. Utrymmeskrav för hantering och infästning av komponenter undersöktes. Montering av kablage är relativt tidskrävande att modellera i DELMIA, så detta var därför inte möjligt att genomföra inom projektets omfattning. Därför har det utelämnats från simuleringen.

    Roboten som användes var Motoman SDA10, vilken består av två armar. Detta har använts för att undvika verktygsväxling och specialverktyg. Robotens ena arm sköter hantering av komponenter med ett vakuumgripdon. Den andra armen hanterar två olika skruvdragare med hjälp av ett fingergripdon. Den ena skruvdragaren har skruvmatning, medan den andra används för efterdragning. Båda skruvdragare har handtag anpassade för robotens fingergripdon.

    I konceptet ingår en lösning för att montera komponenter på skåpets dörr, i det fallet att dörren redan har monterats på skåpet.

    En analys gjordes för att finna vilka svårigheter som finns hos en manuell montering av styrskåpet. Förslag på anpassningar togs fram, där avsikten var att förenkla skåpets montage. Analysmetoden som användes var Product Design for Assembly av Boothroyd G. & Dewhurst P. (1991). Tidsuppskattningarna som togs fram med hjälp av denna metod visade att cykeltiden kan reduceras med 24% genom att implementera anpassningsförslagen. Tidsuppskattningarna är dock endast baserade på montage av skåpets huvudkomponenter. Montering av kablage inkluderas inte i tiderna, då det är utanför omfattningen av detta projekt. Vissa av anpassningarna avser att minska antalet skruvtyper som används vid komponenternas infästning.

  • 17.
    von Braun, Henrik
    et al.
    Linköping University, Department of Management and Engineering, Production Engineering.
    Berglund, Martin
    Linköping University, Department of Management and Engineering, Production Engineering.
    Eltest på motormontering2011Independent thesis Basic level (university diploma), 10,5 credits / 16 HE creditsStudent thesis
    Abstract [en]

    Scania develops and manufactures trucks, buses, industrial and marine engines. Most of the Scania factories inSwedenare located in Södertälje, where most of the product development is carried out. The company operates in about 100 countries and has 34 000 employees. Research and development consist of approximately 2400 employees. [1]Scania engine assembly Södertälje produces engines for Scania's European production of trucks and buses. They also produce engines for example rescue boats, snow groomers, infantry fighting vehicles and generators.Immediately after the assembly the engines are started up for a test. Today the test run works as a fairly comprehensive but time-consuming filter to find discrepancies. By finding the discrepancies earlier in the assembly process the repair and testing costs can be reduced.The task has been to investigate the introduction of a test station to catch the error on the engines earlier on the line. Ideally, an existing Scania developed tool should be used at the test station.The approach has been:

    • Information collection by:
      • o Meetings with knowledgeable people
      • o Search on Scania´s intranet
      • o Study visits
      • o "Manuals"
      • o Statistics
      • o Practical experiments
      • Compilation of existing data
      • Analysis of existing data
      • Concept creation
      • Propose recommendations

    Several possible alternatives were discovered, but after some choices there remained one option. An electrical-test is appropriate to impose on the line, because it can detect many faults and thereby the number of retest-cycles. It will take about three months to introduce such a station. One condition is that the programming of the engine control units must be made ​​earlier on the line compared to the current situation.

1 - 17 of 17
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf