Sök:

Sökresultat:

494 Uppsatser om Additive manufacturing - Sida 27 av 33

FÖRBÄTTRINGSARBETE PÅ BYGGARBETSPLATSER

Slöseri är ett stort problem på byggarbetsplatser. Ett koncept där minimering av slöseri ärcentralt är Lean-manufacturing. Detta arbetes syfte var att utreda hur förbättringsarbeteanvänds på byggarbetsplatser. De befintliga systemen för förbättringar analyserades ochförslag till förbättringar gavs.Genom intervjuer undersöktes hur förbättringsarbete sker på byggarbetsplatser.Egenkontroller och arbetsberedningar användes som kvalitetsarbete på arbetsplatserna. Detvisade sig att de inte har något system för förbättringsarbete.

Förbättrad produktionsplanering vid låg volym och hög variation: En fallstudie vid Metso Paper Sweden AB i Sundsvall

Företag världen över har valt att implementera produktionsfilosofin Lean och de förknippade verktygen. Flertalet av verktygen är utformade för att uppnå en hög kontroll av produktionsflöden och en detaljerad pålitlig produktionsplanering. Verktygen har dock en utvecklingsgrund från den repetitiva produktionen, där höga volymer produceras av samma produkt med liten variation i bearbetningsprocesser. Det har lett till att dessa inte är beprövade för en mer variationsrik produktion, likt den i de flexibla funktionella verkstäderna. Vidare har det visats att just denna flexibla produktionstyp ter sig vara den mest konkurrenskraftiga för högkostnadsländer gentemot lågkostnadsländer vilket följaktligen påvisat att den icke repetitiva lågvolymsproduktionen utgör allt mer av produktionen i högkostnadsländer.

Internationaliseringsprocessen för svenska småföretag i Kina : Fallstudie av två svenska småföretag

The purpose of this thesis was to study how an internationalization process to China may appear for a small Swedish enterprise and to identify important factors that may be essential for the process. The focus extends from the point where the enterprise makes its first connection with China up to the point where they are well established. Their business is up and running and they have begun production. To gain a deeper understanding of the subject a gathering of existing theory and research articles was conducted. The gathering of theory yielded knowledge of different approaches and methods that can be used to implement internationalization and provided a greater understanding of cultural and regional differences in China compared to Sweden.

Kvalitetssäkring av monteringsmoment vid Fasta Motorers F11-montering utifrån en process-, felläges- och effektanalys

I detta examensarbete har möjligheten att kvalitetssäkra en monteringsbana vid Parker Hannifin Manufacturing Sweden AB:s anläggning i Trollhättan utretts. Syftet med studien var att förbättra kvalitetssäkringen vid Fasta Motorers F11-montering och arbetet baserades på en tidigare utarbetad felläges- och effektanalys. För att styrka kundperspektivet genomfördes en undersökning av vad kunderna reklamerar, i form av PQP-anmälningar samt NCMR-rapporter.Genom att därefter identifiera kritiska monteringsmoment i felläges- och effektanalysen, PQP-anmälningar och NCMR-rapporter, var en prioritering möjlig att utföra. Prioriteringen resulterade i att feltyperna felvridet lagerhus, felplock av material samt kuggfel ansågs vara de mest kritiska att kvalitetssäkra.Målet med arbetet var att reducera det totala risktalsvärdet, vilket var möjligt genom en konceptgenerering samt ett konceptval för de specifika prioriteringarna. I samband med konceptgenereringen undersöktes, genom intervjuer med berörd personal, specifika kundbehov.

Är den starkt växande vildsvinspopulationen ett hot mot tjäderns reden?

This case study is based on a previous documented method of manufacturing artificial nest containing pre-colored hen eggs. This method is going to be used to find, if the wild boar population, which is growing in number, is a threat to the capercaillie population.  In comparison to the wild boar population, the capercaillie population is diminishing in different parts of Sweden.  In order to find out if they are affect by each other, the case study was carried out during the months of April to May 2009. 100 artificial nests were placed out on various locations on the Södertuna estate just in the outskirts of Gnesta. The unique aspect of this study is that a fenced environment to keep out wild animals is used to conduct this study, which has been previously known to be free from wild boar, but the area outside has sittings of wild boar. So to fully understand how this affects the capercaillie population, 50 of the nests were placed outside the fence area, while the other 50 nests were placed inside the fenced area. The sites were visited on two separate occasions, and were noted of the changes inside and outside the fenced compounds.

Flexibla fixturer i bearbetande maskiner

This thesis was conducted at Linköping University and Saab Aerostructures DPS, Linköping, and focuses on the possibilities of flexible fixturing in machining applications. The thesis is part of the research project "Koofix", which is collaboration between Linköping University and a number of companies.The thesis is aimed towards small batch production which, for Saab Aerostructures DPS, means diverse part geometry and that parts are manufactured in very small numbers, sometimes just one piece. The result of this is that expensive dedicated fixtures are made for most parts. By introducing more flexible fixturing methods to this kind of production the cost of fixtures and tooling will be reduced, and make the production more efficient.New flexible fixturing methods has been presented and evaluated through the thesis, which has resulted in three different concepts. These concepts have been the result of literature screening and study of current manufacturing process at Saab Aerostructures DPS.

Implementation of a quality management system in food production

The aim of this study was to investigate how the process of implementing a quality management system for food safety was handled in four different food producing companies in Sweden. The aim was also to analyze what difficulties the companies face and the possibilities that arise when certified. Furthermore, the reason for implementation was discussed as well as the main expectations on the certificate. Implementing a quality management system is a good way of ensuring the quality and hygiene of the food production and it also increases the traceability of food products through the whole food chain. A food safety standard provides a method of preventing problems and crisis and it can also help to handle requirements from authorities, the market and others.

Undersökning av bindningsmekanismer vid pressning av metallaminat : Investigation of bondning mechanisms at the pressing of metal laminates

Increased understanding of the mechanisms that operate in conjunction with the welding of metal surfaces may help to improve existing manufacturing processes, and to enable new products and combinations of materials. The purpose of the project has therefore been to acquire a deeper understanding of what is happening in the bond for steel and for the factors that form the basis for a bond to develop between metals in the production of laminates by pressing. The merge has been done by pressing and the surfaces after the experiments have been studied in detail in the scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX) and with interferenceprofilometry in Wyko, to provide a greater understanding of the mechanisms that influence the bonding in the interface between metals. The project was limited to contain the materials Docol 1000, HyTens 1200, Aluminum AA3003 and a commercial steel. The parameters varied in the experiments to study their influence closer are temperature, pressure, heat treatment and pretreatment. This has been implemented by pressing with varying temperature and pressure.

Trapphus i träplattform för CBBT

Industrialization of construction is by some considered to be a solution to the building industry's problems about the lack of quality, high production costs, low productivity and poor environmental adaptation. Meanwhile, industrialized construction partly earned a bad reputation after the million housing program. As large-scale projects where promoted during this period, it worked very well to use the technique of construction elements. In the mid seventies though, criticism arose which claimed that the aesthetic qualities had been deprived in the corporates effort to make housing production as efficient as possible.Tyréns, Derome and CBBT (centre for building and housing in wood) cooperates in a development project to develop a building system for 4-8-storey buildings, consisting of three platforms: a technology platform, an IT platform and a processing platform. The technology platform consists of flexible, industrially built flat modules of wood and from this platform the subsystem stairwells, is broken out.

Vad styr kundens val av emballage och vilka faktorer påverkar kundens emballagekostnad? - inom fordons- och tillverkningsindustrin

Title: What drives the customer's choice of packaging and which factors influence the customer's packaging cost? ? in the automotive and manufacturing industriesAuthor: Lena AnderssonSupervisors: Annika Olsson, Division of Packaging Logistics, Lund Institute of TechnologyHelena Claesson, Volvo Logistics ABProblem: Which parameters are important for logistic people to think of when they are going to choose a package?Which cost factors are included in the packaging cost?What kind of added value can an emballage supplier provide their services with?Purpose: The purpose of the project was to study the parameters that drives the customer's choice of packaging and the factors that influence the total packaging cost. The study also consists of a valuation of what an emballage supplier can offer to add value to their services.Method: The study is based on interviews with people who are working at Volvo Logistics and Volvo Car Corporation. Volvo Logistics provide their customers with standard packaging material, which they own and administrate. Volvo Car Corporation is one of their customers.

Investeringsmodell för lastpallstillverkning vid Södra timber i Långasjö : Investment model for pallet manufacturing at Södra timber in Långasjö

Huvudmålet med detta examensarbete var att undersöka om det för Södra timber är ekonomiskt hållbart att tillverka engångspallar till pelletsproduktionens tilltänkta säckningsanläggning i Långasjö, gentemot att köpa in engångspallar från en extern leverantör. Detta gäller då för 30 000 engångspallar om året.Intervjuer togs på Södra timber i Långasjö om vilket virke som var lämpligt från företagets sida att bli av med. Detta visade sig vara brädor av 19x75 mm och 75x75 mm. Dessutom beslutades i ett tidigt skede att en engångspall med måtten 1200x800 mm är en bra lösning då detta är europastandardens mått. Olika alternativ togs fram för hur man skulle kunna ta fram materialet och sänka produktionskostnaderna och avsåg då brädor 19x75 och klossvirke 75x75.

Export inom gränserna : En studie om förutsättningar för medicinsk turism i Sverige

International trade in services has increased over the past 30 years as a result of progress in information and communication technology, increased focus on services from the manufacturing sector and the establishment of trade associations.The international market for healthcare services, also referred to as medical tourism, is growing more and more. Patients increasingly seeking treatment at other countries healthcare systems because of long queues within their own country or because it exists better prices for the same care abroad. However, this type of service exports occurs at a limited extent in Sweden.The purpose of this study is to highlight and analyze the conditions for Swedish service companies to export healthcare services. This, includes the challenges and opportunities that exist to expand the exports of these services.The approach for this study has been in the form of interviews with two market actors and written responses, from the same interview guide, with three market actors. These market participants are the so-called Care companies which export healthcare services in various counties, and the membership organization Swecare who work with export promotion activities for its members in the Swedish healthcare sector.

Värdeflödesanalys på Saab Training Systems i Huskvarna

Saab Training Systems (STS) in Huskvarna is manufacturing material for educationalpurposes to armies worldwide. They are now implementing parts of the Lean productionconcept in their organisation.One part of the work with Lean production is to eliminate waste. To be able to identify waste,value stream mapping is a good tool and also what we used in our thesis. To gain a betterefficiency in the production of Personnel Detector Device (PDD) flow was one of our goals.The PDD is a harness used during battle training which registers if the user is being hit by itsenemy.Our work with the thesis started up with a short education in Lean production and in valuestream mapping (VSM). The work proceeded with a VSM of the production flow of the PDD,interviews were made and studies of literature were done to gain greater knowledge of thesubject and solve the task.The VSM resulted in five areas which were followed up out of those six we identified.

Jaktprov hos brittiska stående fågelhundar

In 1996 a hunting test for British gun dogs was started in Sweden, based on a similar one al-ready in place in Norway. The aim of the new test was to describe the hunting ability of the dog and to use the results as a basis for selection. However, up to now, no genetic study of these data has been done. Therefore the aim of this study was to estimate genetic parameters for the traits measured in the hunting test and to investigate whether the traits can summarized into fewer overall measures. Data from trails of British gundogs between 1996 and 2005 in Sweden were used to estimate genetic parameters and environmental effects in hunting performance. British gundogs consist of five different breeds: Pointer, English setter (ES), Gordon setter (GS), Irish red setter (Irl S) and Irish red and white setter.

Lönsammare framtagning av kulventiler : med avseende på tillverkningsprocess och materialbesparing

AbstractThis is a thesis done in cooperation with the firm Somas and University of Karlstad. The project is an independent final examination part of the program in Innovation and DesignEngineering comprising 22.5 points, and performed by Mia Myrén Zreloff during spring term 2012. In parallel and collaboration, Fredrik Kjellin performs a similar job for the same company and with the same extent, but for the Program in Mechanical Engineering.The client and supervisor at the company have been Magnus Jansson and Anders Josefsson. At Karlstad University has technical supervisor been Hans Johansson, and in the design- and development process it was Monica Jakobsson. Examiner has been Fredrik Thuvander, professor in the Faculty of Technology and Science at Karlstad University.The mission has been to make a basis work for the company's own development and make a computational model to calculate, visualize and implement materials and other solutions in the manufacture of the company's ball valves.The project has undergone three major phases that included thorough study of the company, production, the problem and product.

<- Föregående sida 27 Nästa sida ->