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. Dessa kundbehov omarbetades därefter till målspecifikationer för att underlätta genereringen av koncept. Då informativa koncept var framtagna återstod ett val av det bäst lämpade konceptet. Valet utfördes med två olika metoder, screening och scoring samt 3P, för att ytterligare säkerställa att rätt koncept valts. Det var därmed möjligt att uppdatera felläges- och effektanalysen med de valda åtgärderna och då påvisa att syftet var uppnått. Syftet med kvalitetssäkringen uppnåddes genom att sänka det totala risktalsvärdet med 47,5 procent mot det tidigare risktalsvärdet, 6415. / In this thesis an investigation has been made in order to find possibilities to assure the quality at an assembly line at Parker Hannifin Manufacturing Sweden AB:s facility in Trollhättan. The purpose with the study was to improve the quality assurance at Fixed Motors F11-assembly line, where the work was based on an already conducted process-FMEA. In order to verify and further investigate the customer perspective, an inquiry was also done to see what customers complained about, this with help of PQP, Product Quality Problems, and NCMR, Nonconformance reports. By analyzing the process-FMEA, PQP and NCMR reports an identification and prioritization of critical failures were made. The result from these steps was three failures, incorrect positioning of the bearing house, picking of incorrect material and incorrect gear timing. These three were considered to be the most critical failures to quality assure. The aim with the quality work were set to reduce the total RPN, Risk Priority Number, of the process-FMEA, which was rendered by applying a concept generation and a concept selection for the specific failures. In relation with the concept selection, interviews were made with staff that was considered important and vital for the project. This was made to identify specific customer needs regarding solutions to the three failures. From these needs a target specification was developed to ease the generation of concepts. After generating a number of well specified concepts, a concept selection was made using the two methods screening and scoring and an additional Parker method called 3P to further establish that the right concepts was chosen. Further it was then possible to update the process-FMEA with the chosen concept solutions and by doing that reaching the project aim. By implementing the solutions it was possible to reduce total RPN, 6415, with 47,5 percent.

Epiroc Rock Drills AB in Örebro manufactures and develops machinery for the infrastructure required to maintain a fully operational mining industry, such as ventilation, drilling rigs, trucks and loaders etc. In these environmentally conscious times, a large market focus forzero emission machines has begun to emerge. By replacing today'sinternal combustion engines, mining companies can save large sums of money in ventilation costs and fuel while creating a more pleasant working environment in the mines. Due to these rapidly changing needs, Epiroc's machines must also change in design and performance. Epiroc has thus chosen to use interchangeable batteries in their new generation of mining machines. When the battery is discharged, it must be easy to replace with a fullycharged one. From an economic point of view, it is also important that the machine is always in production without any stops, making fast and efficient battery switches desirable. At present, the battery change is usually done with a mono-rail crane down the mine. This has proved to be very difficult and ineffective as the battery is too often jammed into the machine due to the fact that the machine is poorly positioned against the crane. Ceiling heightis also a problem, preferably one should have about 6-7 meters to accomplish a safe lift with the crane, which is not always possible down in a mine. In order to find a more long-term solution to this problem, this degree project took its start. During the course of the process, a number of methods in product development and concept generation have been used to develop different concepts and screen them based on the needs identified at the beginning of the work. The main problem was divided into four sub problems to facilitate conceptgeneration, the most promising sub concepts were visualized using CAD and then put together in different combinations. These combinations were then evaluated against today's solution to easily see what concept should be further developed. This resulted in a concept that consists of a separate platform,which can either be placed on a vehicle or as a stand-alone station. On this platform there are two telescopic arms, one on each side. These arms lifts the three ton heavy battery from the mining machine in an arcuate motion over a charged battery on the platform, placing it in a designated location and then lifts the charged battery into the machine. With this concept, it is also possible to accomplish a safe change with a limited ceiling height of approximately 3.5-4 meters, which is an improvement compared to today's solution.

This study focuses on providing innovative solutions to assist workers lacking technical knowledge at Husmuttern AB to assemble its products. The Swedish company produces standardized building-sections that can be assembled to build model-houses, and other forms of buildings in mobile factories. The company’s vision is to provide opportunities for inexperienced labors and newcomers to Sweden, and so playing a positive role in integrating immigrants into the Swedish market and society. To actualize this ambition, this paper aims specifically at developing tools/products that assist unskilled workers to reduce the margin of errors in determining where and how the screws will be placed when combining the wooden beams and plywood boards, which form the building sections.   Semis-structured interviews with workers at Husmuttern AB were conducted to identify problems associated with the working process. Ullman’s product-developing method was employed to develop the facilitative tools. Several concepts were developed and compared in an attempt to find the best solution for the given problem(s), and eventually two proposed products were presented: the first is a template where holes are located to mark where the screws should be placed. The other product is basically an inclined plane with a drill-guide to direct the screw in the correct gradient and prevent the screw from moving through the process.

This report presents a thesis done in the field of mechanical engineering with a focus on product development and design. The work was done together with Kongsberg Automotive AB in Mullsjö. The company wants to investigate the push button solutions available on the market today and the solutions that seem promising for the future. The purpose of this thesis is to examine what the user perceives as quality and define which solution the company should use in future products. To make the subject less about an abstract feeling of quality a method for interviewing end users was created. This allowed their feelings about good and bad characteristics to be concretized to statistical data about characteristics and buttons tested in the study. These statistics where then used in a product development process to create concepts from ideas. With support from an experienced professional a direction was set to create prototypes built around existing switches matching the results of the interview based study. The result is a number of concepts for solutions, as well as 3D-printed prototypes of the more promising solutions followed by advice on which direction future research in the area should be headed. The task was solved with several well documented methods such as Kano. With these methods, the market has been reviewed, user comments about quality have been collected and analyzed and new concepts has been created to accompany the coming trend and meet user demands.

Vid konstruktion med betong har prefabricerade betongelement blivit allt mer frekvent förekommande. I samband med detta blir moment som förflyttning av betongelement ett problem under tillverkning, på grund av dess storlek och vikt. Syftet med arbetet är att undersöka transporter av betongelement på en industri. Elementen ska framföras säkert och tidseffektivt. Målet är att minimera risken för arbetsrelaterade skador genom att konstruera en ny lastanordning. Konstruktionen ska även främja en mer tidseffektiv hantering än dagens situation. Studien är kvalitativ då forskningen är baserad vid ett fallstudieobjekt. Däremot är både datainsamlingen kvalitativ och kvantitativ. Forskningen resulterade i dels ett koncept med en rälsgående A-bock, dels ett koncept med en A-bock anpassad för transport med dragtruck. Vid simulering av koncepten var resultatet positivt då båda koncepten uppnådde en säkerhetsfaktor av 1,25-4 i relation till materialets sträckgräns.

Detta examensarbete handlar om en skopkonstruktions utveckling, avsedd för en serieskopor men konstruktionen har enbart implementerats på en kabelskopa. Arbetet har utförtspå uppdrag av ett verkstadsföretag som utvecklar, tillverkar och säljer entreprenadutrustningtill grävmaskiner och hjullastare. Företagets vision är att komma ut på den svenskalågprismarknaden, men i dagsläget är produktionskostnaderna på skoporna för höga. Måletmed arbetet har varit att ta fram en konstruktionslösning som sänker företagets produktionskostnader.Efter ett möte med företaget tydliggjordes vilka behov som efterfrågades och dessa behovtolkades i form av kundkrav. Med en QFD-analys översattes kundkraven till produktegenskapersom krävs för en lyckad skopkonstruktion. Fokus har främst lagts på att förenklaskopans montering och anpassa dess konstruktion för robotsvetsning. Några faktorer harvarit att utforma självfixerande detaljer och beakta åtkomlighet för svetsning. Konceptengenererades genom intern och extern sökning, där metoder så som brainstorming och konkurrentanalyshar använts.Konceptvalet utfördes med Pughs beslutsmatris, där ett relativt optimalt koncept valdes förfortsatt utveckling. Vid utvecklingen har diverse verifieringsmetoder använts, som till exempelriskanalys, finita elementmetoden (FEM) och kostnadskalkyl för att kontrollera attdet valda konceptet uppfyller de uppsatta kraven för skopan. I verifieringsfasen identifieradesflera förbättringsmöjligheter som implementerades på det valda konceptet och dettagav ett bättre koncept än tidigare.Det slutliga konceptet har fått en sänkt produktionskostnad, med effektivare montering,minskad materialanvändning och svetsning samt en bättre prestanda än tidigare. / This thesis is about the development of a bucket design; intended for a range of excavatorbuckets consisting of four different types, but has only been implemented on the cablebucket. The work has been performed on behalf of a company that develops, produces andsells construction equipment for excavators and wheel loaders. At the present, the company'sexcavator buckets have high production costs, but the vision is to get into the low-costmarket. The goal of this work has been to develop a bucket design that reduces the company'sproduction costs.After a meeting with the company it became clear what needed to be achieved. The collectedneeds were interpreted in terms of customer requirements. A QFD was made, and thecustomer requirements were translated into product specifications for a successful bucketdesign. Particular focus has been put on simplifying the assembly of the bucket and adaptingits design for robot welding. Some essential factors have been to design interactingparts and to consider the accessibility for welding. The concepts were generated throughinternal and external searches, where methods as brainstorming and competitor analysiswere used.Concept selection was made by using Pugh's decision-matrix. A relatively optimal conceptwas selected for further development. During the development, various verification methodswere used, as for example risk analysis, finite element analysis (FEA) and cost estimate,to verify that the selected concept meets the set requirements for the excavator bucket.Several potential improvements were identified during the verifications phase and theseimprovements were implemented on the selected concept, which resulted in an even betterconcept than before.The final concept obtained a reduced production cost, with a more efficient assembly, reducedmaterial use and welding as well as a better performance than before.

Syftet med det här examensarbetet har varit att utveckla och utforma en mobilhållare för bilar. En mobilhållare kan ha många funktioner, och med dagens lag om att kommunikationsutrustning inte får störa vid framförande av fordon får den en extra viktig roll. Hållaren har utvecklats för att möjliggöra enkel användning genom en kombination av flera användarvänliga funktioner. Några exempel på funktioner är enkel montering och demontering av mobiltelefon, automatisk sammankoppling med bil samt trådlös laddning. Genom en strukturerad produktutvecklingsprocess, där beprövade metoder har använts för att identifiera krav, generera koncept och välja koncept, har ett antal koncept skapats som slutligen sållats ut till en slutlig vinnare. Exempel på använda metoder och verktyg är intervjuer och House of Quality för kravidentifiering, TRIZ Effects Database och Merlin för konceptgenerering samt Concept screening och Concept scoring för konceptval. Det valda konceptet har därefter genomgått nödvändigt konstruktionsarbete för att skapaCAD-modeller, utföra FE-analyser samt 3D-printa en prototyp. Det slutliga konceptet uppfyller kravet om enkel användning genom bland annat enkel enhands montering och demontering av mobiltelefon. Lösningen fungerar även med en stor variation av mobiltelefoner utan behov av att göra inställningar. Konceptet är utformat och förberett för att i framtida arbete integrera olika trådlösa tekniker såsom NFC och Qiladdning. Vidare arbete krävs bland annat gällande konstruktionens hållfasthet, materialval och uppfyllande av lagkrav. / The objective of this thesis has been to develop and design a mobile phone holder for cars. A mobile phone holder can fulfil many purposes, and with the legislation today stating that communication equipment should not interfere when driving a vehicle, this type of product becomes extra important. The holder has been developed to enable simple use through acombination of user friendly functions. A few examples of functions are; easy mounting and demounting of mobile phone, automatic connection to car and wireless charging. Through a structured product development process, where tested methods have been used to identify requirements, generate concepts and choosing concept, an amount of concepts have been created and finally narrowed down to one final winner. Examples of methods and tools that has been used is interviews and House of Quality for identifying requirements, TRIZ Effects Database and Merlin for generating concepts and finally Concept screening and Concept scoring for the selection. The chosen concept has thereafter gone through necessary construction work for creating CAD-models, performing FE-analysis and 3D-printing a prototype. The final concept meets the requirement of easy use through simple one-hand mounting and demounting of mobile phone. The solution also works with a wide variety of mobilephones without the need to make adjustments. The concept is designed and prepared for integrating techniques such as NFC and Qi-charging in future work. More work needs to be done regarding the constructions strength, choice of material and fulfilling of laws before proceeding any further.

Hitachi Energy Power transformers in Ludvika wants to investigate the possibilities of developing a cutting tool to streamline one of the many processes for fabrication of windings in transformers. This thesis work at Uppsala University, which has been going on for ten weeks, has thus investigated the possibilities for a cutting tool by studying the basic necessary theories and user requirements that have consequently resulted in the generation of a proposed solution. User requirements were formulated through collection of data in the form of interviews, a questionnaire,and a literature study. Based on the collected user requirements, concepts have been generated for cutting mechanisms, followed by a concept screening for the reason of presenting a concept selection. The remaining problem statements were answered through thematic analysis of all collected information and balancing of developed user requirements. The design of a proposed solution has been done in 3D CAD with a focus on a solution-independent design This study showed that an electric battery-powered and hand-held tool with a focus on user-friendliness is advantageous for the intended application. Theoretically, the tool will improve user safety and time-consuming manual work will be minimized while reducing the risk of accidents. A theoretically functional proposed solution with a basis for all design choices has been presented to act as a basis for continued work. This study has been the first of its kind for this specific area and has thus left much room for further development, but at the same time provided a collection of information that contributes to the possible realization of a cutting tool.

The growing concern with the environmental impacts of disposable products has placed an emphasis on ensuring the sustainability of material systems. A shift in the selection of material can decrease the negative effects of disposable products. One class of materials with good credentials is biocomposite materials, a material partly consisting of biodegradable products. In this thesis project a compression molding machine suitable for the pressing of biocomposite materials are developed for the start-up Trash to Gold. The start up is in a early process of developing compression molding machine. As of now they use a modified workshop press to test out the pressing of to-go coffee cups made out of biodegradable a biocomposite material partly consisting of coffee grounds. The current press is not optimised for their expected customer group and it is therefore appropriate to develop a new one. The aim of this thesis project is to assist Trash to Gold in their development of a compression molding machine, suitable for upcycling biodegradable waste into disposable products. The objective of this thesis project is to develop a concept of a compression molding machine that can be used to print to-go coffee cups partly made of coffee grounds. The concept to be developed will be for a press that weighs less and has smaller dimensions than the current one to suit the target group. The product development methodology of the project is based on Ulrich and Eppinger’s book ”Product Design and Development”. Some of the approaches used from book are modified for better application on the project. The project also includes digital and theoretical tools to determine if the concept can withstand the pressure generated when the machine is in use. The result of the thesis project is a concept of a compression molding machine that meet requirements given by the start up. Suitable parts for the basic structure of the compression molding machine is presented such as how the pressing function will occur and the outer frame with where the different components will sit. The resulting concept is smaller and more light weight compared to the current machine. / Den växande oron för negativa effekter engångsprodukter har på miljön har lett till ett ökat intresse att säkerställa materialsystemens hållbarhet. En förändring av materialvalet fÅNor produkterna kan minska dessa negativa effekterna. En materialklass som hade kunnat minska de negativa effekterna är biokomposita material. Biokomposit material är ett material som delvis består av biologiskt nedbrytbara produkter. I detta examensarbete utvecklas en formpressningssmaskin anpassad för formpressning av biokomposita material. Projektet görs på uppdrag av startup-företaget Trash to Gold. Företaget håller på att utveckla en formpressningsmaskin och använder just nu en modifierad verkstadspress för att testa tillverkningen av engångskaffemuggar som delvis består av kaffesump. Den nuvarande pressen är inte anpassad för den förväntade kundgruppen och det är därför l'mpligt att utveckla en ny. Syftet bakom detta examensarbete är att hjälpa Trash to Gold att utveckla en formpressningsmaskin som är anpassad för återanvändningen av bionedbrytbara restprodukter till engångsartiklar. Målet med det här examensarbetet är att utveckla ett koncept av en formpressningsmaskin som kan användas för att formpressa engångskaffemuggar delvis bestående av kaffesump. Konceptet som tas fram ska vara för en press som väger mindre och har mindre dimensioner än den nuvarande för att passa målgruppen. Arbetets produktutvecklingsmetodik är baserad på Ulrich och Eppingers (U&E) bok ”Product design and Development”. Exempel på metoder som använts är identifiering av kundbehov, produktspekification, konceptgeneration, extern- och intern undersökning samt olika poängsättningsmetoder. Arbetet omfattar också teoretiska modeller och verktyg för att räkna på konceptets hållfasthet, materialval och val av komponenter. Resultatet av examensarbetet är ett koncept för en formpressningsmaskin som uppfyller de krav som ställts av start up-företaget. Lämpliga delar för grundkonstruktionen av formpressningsmaskinen presenteras. Till dessa hör vad som ska ge upphov till pressfunktionen samt den yttre ramen där de olika komponenterna kommer att sitta. Det resulterande konceptet väger mindre och har mindre dimensioner jämfört med den nuvarande maskinen.

In Sweden, there are students who live in small student apartments. These apartments can be called compact living as a student apartment can be as small as 16 square meters. To take advantage of the place that is in small homes, it would be good if larger furniture could be combined into a piece of furniture. On behalf of Husmuttern AB, this work has been aimed at exploring furniture concepts with sleeping and their functions in a compact living environment for students. The issues being examined are: -          What functions are desirable in a multifunctional seating and sleeping furniture for students and people living in compact living environments? -          How can a multifunctional seating and sleeping furniture be designed, that is applied to students living in a compact-living environment? Human Centered Design was used as a method and thus a qualitative data collection was carried out in the form of observations. The respondents were in the primary target group and were observed in their everyday lives in their homes. A focus group was involved in generating ideas and concepts. Functional prototypes were built, and 3D models were created in SolidWorks. Digital testing of the concepts was carried out and the development of the Generation Sofa Bed was realized. There is a discussion about how reliable this study is, when the results became situational. However, the respondents were from a limited audience and had different views on what they wanted from a sofa bed, which provided rewarding information for the development of the furniture. The conclusion is that while the Generation Sofa Bed needs to be further developed through testing and evaluation of storage facilities, it has great potential to become a finished product. / I Sverige bor det studenter i små studentlägenheter. De lägenheterna kan kallas för compact living då en studentlägenhet kan vara så liten som 16 kvadratmeter. För att ta vara på den plats som finns i små hem vore det bra om större möbler kunde kombineras till en möbel. På uppdrag av Husmuttern AB har detta arbete haft som syfte att utforska möbelkoncept med sov- och sittfunktioner i en compact living miljö för studenter. De frågor som undersöks är: 1.      Vilka funktioner är önskvärda i en multifunktionell sitt- och sovmöbel för studenter och personer som bor i compact living miljö? 2.      Hur kan en multifunktionell sitt- och sovmöbel konstrueras, som är tillämpad för studenter som bor i compact-living miljö?  Human Centered Design användes som metod och därmed genomfördes en kvalitativ datainsamling i form av observationer. Respondenterna var med i den primära målgruppen och observerades i sin vardag i sina hem. En fokusgrupp var med och genererade idéer och koncept. Funktionsprototyper byggdes och 3D modeller skapades i SolidWorks. Digital testning av koncepten genomfördes och utvecklingen av Bäddsoffan Generations blev förverkligad. Det finns en diskussion om hur pålitlig denna studie är, då resultaten blev situationsbaserade. Dock var respondenterna från en begränsad målgrupp och hade olika syn på vad de ville ha av en bäddsoffa, vilket gav givande information till utvecklingen av möbeln. Slutsatsen är att medan Bäddsoffan Generations behöver vidareutvecklas genom testning och utvärdering om förvaringsmöjligheter, så har den stor potential att bli en färdig produkt.