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Kvalitetsutmaningar i produktionsberedning : En grundorsaksanalys hos Siemens Energy AB / Quality challenges in production preparationJonasson, Sara, Karlsson, Mattias January 2024 (has links)
A successful company is characterized by shared values, a clear vision, continuous improvements and everyone’s commitment. By consistently striving to achieve and exceed needs and expectations, quality becomes a cornerstone of long term success. The study, which was conducted at Siemens Energy in Trollhättan, explored quality challenges in production preparation. The theoretical framework explores the foundation of quality. Furthermore, quality deficiency costs and tools for quality management are explored, all of which are considered essential for understanding the study and field. The initiative for the subject was taken by Siemens Energy AB who has perceived flaws in their production preparation. The purpose of the study is to minimize internal quality deficiencies that can be derived to production preparation. The goal of the study is to present a root cause analysis of the current situation. The study includes data collection, description of the current situation, and a root cause analysis with associated proposals of improvement. The methodology used is proactive quality development by Bergman and Klefsjö, which is based on TQM – Total quality management. Data collection was done from three different source types: deviation reports, measurement of disruption in production and interviews. The interviews consisted of three in-depth interviews with production manufacturing engineers and ten shorter interviews with operators. The identified quality challenges in the current situation includes, but are not limited to, errors in operation text and insufficient instructions. The root cause analysis focused on insufficient instruction and revealed several aspects of why instructions have poor quality. The two most significant reasons identified were: Instructions are difficult to understand and can be interpreted in different ways by different people and Instructions are not considered to be of great importance from a quality point of view. Considering these reasons, suggestions for improvement have been drawn up. The suggestions for improvement are summarised as follows: Integrate knowledge and understanding of the importance of quality deficiencies in training and education in the organisation Implement a systematic way of working that enables more efficient communication between operators, production technicians Implement the critical moment add-on sheet in the existing instruction template / Ett framgångsrikt företag kännetecknas av gemensamma värderingar, en tydlig vision, ständiga förbättringar och allas engagemang. Genom att konsekvent eftersträva att uppnå och överträffa behov och förväntningar blir kvalitet en grundsten för långsiktig framgång. Studien, som utfördes på Siemens Energy i Trollhättan, har undersökt kvalitetsutmaningar kopplade till produktionsberedningen. Den teoretiska referensramen utforskar kvalitetens grundpelare, kvalitetsbristkostnader samt verktyg för kvalitetsutveckling, vilket alla anses väsentliga för förståelse av studien. Initiativet till undersökningsområde togs av Siemens Energy AB efter upplevda brister i produktionsberedningar. Studiens syfte är att minimera interna kvalitetsbrister som kan härledas till produktionsberedningen, med målet att presentera en grundorsaksanalys av nuläget. Studien innehåller datainsamling, nulägesbeskrivning, samt grundorsaksanalys med tillhörande förbättringsförslag. Den metodik som används är offensiv kvalitetsutveckling enligt Bergman & Klefsjö och som är baserad på TQM – Total Quality Management. Datainsamling inhämtades från tre olika källtyper för att kartlägga problemet: avvikelserapporter, mätning av störningar i produktionen samt intervjuer. Intervjuerna bestod av tre djupa intervjuer med produktionstekniker och tio kortare intervjuer med operatörer. De identifierade kvalitetsutmaningarna i nulägesbeskrivningen inkluderar fel i operationstext och bristande instruktioner. Grundorsaksanalysen fokuserade på bristande instruktioner och avslöjade flera aspekter till varför instruktioner brister i kvalitet. De två mest betydande orsakerna som identifierades var: Instruktioner är svåra att förstå och kan tolkas på olika sätt av olika personer samt att Instruktioner anses inte ha någon stor betydelse ur kvalitetssynpunkt. Till dessa orsaker har förbättringsförslag upprättats. Förbättringsförslagen sammanfattas enligt följande: Integrera kunskap och förståelse av kvalitetsbristernas betydelse i upplärningen och utbildningen i verksamheten Implementera ett systematiskt arbetssätt som möjliggör en effektivare kommunikation mellan operatörer och produktionstekniker Implementera tilläggsbladet för kritiska moment i den befintliga instruktionsmallen
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Supporting production preparation during product development using production requirementsAreth Koroth, Rohith January 2023 (has links)
Product development is affected by uncertainties due to changing customer requirements, changing regulations, technological developments, long lead times, high product complexities, and geopolitical issues. Automation, increased flexibility of production, and reduced lead times are drivers that allow product development to be competitive in this scenario. Design engineers should be aware of production capabilities to facilitate early producibility assessments and to avoid late changes. Production preparation is identified as an important activity in the product development process, whereby the producibility of a product is assessed. In this thesis, the current state of production preparation during product development is investigated and a method is introduced supporting production preparation using production requirements. The work was carried out using the design research methodology framework and comprised four studies based on the four steps of the framework. The research clarification and descriptive study 1 phases aimed at developing understanding and were done by means of data collection at the companies through interviews and document studies. The next two steps were prescriptive study and descriptive study 2, which aimed at developing and evaluating the support. This was done through observation, workshops, and solution development. The production preparation process is supported by Design for Manufacturing and Assembly, failure mode and effects analysis, lesson-learnt documents, and computer-aided design, and the efficiency of the process is dependent on individual skills and knowledge. Tools to support common understanding, remove ambiguity in requirements, and enable collaboration between design and production engineers are needed. The developed method allows for the identification, definition, structuring, and sharing of production requirements, aligning with varying maturities of product and production systems during product development. This helps improve the collaboration between design and production engineers for production preparation.
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Proposta de um método de participação da produção utilizando o desenvolvimento enxuto de produtoCampos, Telmo Ribeiro de 16 December 2008 (has links)
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Previous issue date: 2008-12-16 / Lean manufacturing tools are well known and implemented to eliminate waste and improve materials flow throughout a production process. These lean principles are now studied and
applied to product development process (PDP), aligned to the company s needs to develop and launch new products with lower cost and increased speed. Therefore, the objective of the present dissertation is to propose a production preparation procedure, that emphasizes: the significance of the manufacturing team s participation from project inception by sharing its experience, requirements and constraints; the vision of operational value stream delivery as a result of PDP and value creation related to customer and other stakeholders perception. To validate this proposal, a comparative application took place using a previous project from the company that was studied. Procedure comprehensiveness was assessed by questionnaire sent to professionals from other divisions, in addition to the division team. It was concluded that the proposed procedure is: feasible, updated and applicable; capable of contributing to waste, rework and project time reduction and helpful for sharing manufacturing lean concepts knowledge and expertise with other team members and product development stakeholders. / Atualmente, técnicas da manufatura enxuta são conhecidas e implementadas para eliminar desperdício e melhorar o fluxo de materiais ao longo de um processo de produção. Estes mesmos princípios enxutos são agora estudados e aplicados no processo de desenvolvimento de produto (PDP), alinhados à necessidade das empresas de desenvolverem e lançarem novos produtos com custo competitivo e no menor tempo possível. Portanto, o objetivo deste trabalho é propor um método para a produção, que enfatize: a importância da participação da manufatura desde o início do projeto para compartilhar sua experiência, necessidades e restrições; a visão de entrega de todo o fluxo operacional como resultado do PDP e a criação de valor segundo a percepção do cliente e demais interessados no projeto. Para validar a proposta, ela foi aplicada de forma comparativa em um projeto anteriormente realizado na empresa estudada; sua abrangência foi verificada mediante envio de questionário de avaliação do método a profissionais de outras divisões da empresa, além dos envolvidos no projeto avaliado. Como resultado, concluiu-se pela: viabilidade, atualidade e aplicabilidade do método; capacidade em contribuir para redução de desperdícios, de retrabalhos e do tempo de
projeto; possibilidade de compartilhar o conhecimento e experiência da manufatura nos conceitos enxutos com os demais integrantes e interessados do projeto de desenvolvimento de produto.
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Kartläggning och förslag på arbetsmetodik inom ett beredningsflöde / Mapping and workflow improvements in production preparationPettersson, Emil January 2019 (has links)
Rapporten är ett resultat av ett examensarbete inom Maskinteknik, inriktning Industriell Ekonomi och Produktion, vid Kungliga Tekniska Högskolan, institutionen för Hållbar produktionsutveckling. Projektet har utförts för försvarsföretaget BAE Systems Hägglunds AB i Örnsköldsvik. Studenten har utfört arbetet på plats vilket har varit en grundförutsättning för att kunna genomföra studien. Uppdragsbeskrivningen, dess mål samt avgränsningar har tilldelats av enheten för Prototyp och Skrov (P & S). Målen inkluderar att kartlägga de feleffekter som uppstår när beredda operations- och ställtider inte överensstämmer med verklig tid i verkstaden, att ge förslag på arbetsmetodik för att återkoppla och uppdatera dessa tider samt arbetsmetodik för beräkning av inkörningstid för samtliga artiklar. Enheten för P & S tillverkar ingående artiklar och levererar färdiga skrov av företagets fordonsfamiljer till resterande avdelningar i verkstaden. Fordonen utvecklas kontinuerligt mot kunders krav varför avdelningens förmåga att snabbt kunna leverera prototypartiklar till utvecklingsavdelningen är viktig för hela företagets långsiktiga lönsamhet. Verksamheten saknar i viss utsträckning standardiserat underlag för beredning samt återkoppling på beredningstider. Detta resulterar i att artiklar blir sena, dyrare än projekterat samt ett ständigt prioriteringsarbete vilket riskerar att förstärka problematiken. Berörd personal litar inte på verksamhetens förmåga och anpassar därför arbetssätt på en lokal nivå vilket leder till suboptimeringar. Studien resulterar i en kartläggning över de feleffekter som uppstår, som till stor del beror på saknandet av standardiserade arbetsmetodiker. NC-programmeringen infö rmaskinbearbetningen beskrivs som en flaskhals. Studien föreslår därför att programmering sker innan produktionsorder i form av arbetskort bereds och frisläpps mot avdelningen för maskinbearbetning. Verksamhetens målbild är att beräkna inkörningstiden för samtliga artiklar då tillverkning av första exemplar tar längre tid. Varpå studien föreslår ökad kommunikation mellan avdelningar. / This report is the result of a bachelor thesis within the area of mechanical engineering, management and production at the Royal Institute of Technology. The study was conducted at the defense and security company BAE Systems Hägglunds AB in Örnsköldsvik, Sweden. The study has been conducted on location which has been essential for the feasibility of the study. The assignment and the goals of which it should accomplish, as well as within which boundaries has been assigned by the section for Prototype and Hulls (Swedish P & S). Set goals include mapping the fault effects which occurs when process times doesn’t match that of which has been planned and assigned for specific work orders, methods for feedback between the workshop and ERP-systemfor more accurate future processes. As well as methods for calculation of process times for all components in a batch since the first ones tend to require more time. The section of Prototype and Hulls produce and delivers hull components for all of BAE Systems Hägglunds families of vehicles. It’s necessary for the vehicles to continuously being developed due to customers’ demands for them to be able to compete on the global market. As a result the manufacturing of prototype components is essential for the company’s ability to gain customers, which is why it’s up most important to beingable to deliver prototype components for R & D rapidly. The section for Prototype and Hulls lacks standardized methods for the production preparing and planning. This results in components that are too expensive and late. In a long term this means that employees doesn’t trust the ability of the business and in some cases, develops local improvements, putting the company at risk of developing sub optimizations. The study discusses the fault effects discovered by the mapping process, which is being described as a result of not using standard methods. The study recommends BAE Systems Hägglunds to implement a standardized method towards the NC-programming where the programming is conducted before the preparer creates a work order. Since BAE Systems Hägglunds wants to calculate the required time for all componentsin a work order the study recommends intercommunication between different sections to exchange experience and work methods with each other.
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Kartläggning och förbättringsförslag inom beredning samt beläggnings- och kapacitetsplanering / Mapping and improvements in production preparation, production- and capacity managementD. Wahlberg, Daniel January 2018 (has links)
Detta examensarbete har utförts inom Högskoleingenjörsutbildningen i Maskinteknik, Industriell Ekonomi & Produktion vid Kungliga Tekniska Högskolan, Institutionen för Hållbar produktionsutveckling. Projektet har genomförts under våren 2018 på uppdrag av BAE Systems Hägglunds i Örnsköldsvik. Målet och syftet med denna studie har varit att analysera avdelning Prototyp & Skrovs produktionsplanering, beredning, kapaciteter, beläggningar och prioriteringar i verksamheten. Förhoppningen har varit att hitta förbättringsområden och arbetsmetodik för bättre och effektivare planering. Enhet Prototyp & Skrov tillverkar fordonskroppar till bepansrade militära fordon och innefattar även utvecklingsverkstad med förmåga att ta fram nyutvecklade fordon och marknadsvagnar. Studerad avdelning har idag problem och uppenbara brister i beredning, beläggnings‐ och kapacitetsplanering, där uppskattade operationstider från beredning är felaktiga och ny beläggning kan planeras ut utan föregående konsekvensanalys. Avdelningen präglas även av en kortsiktighet i sin produktionsplanering, och saknar standardiserade och enhetliga arbetssätt för att angripa verksamhetens problem. Under projektets genomförande har resultat från intervjuer, observationer och stickprov i verkstaden visat och fastställt flera förbättringsområden för fortsatt arbete inom verksamheten. Ett par av rekommendationerna för att möta företagets problematik belyses av författaren som implementering av standardiserade arbetssätt, korrekta kötider framför stationer i verkstaden, återkoppling av operationstider från operatörer, samt att avdelningen tydligt bör definiera sin kapacitet för att möta verkligt utnyttjande i verkstaden. Författarens förhoppningar med resultatet av denna studie är att arbetet och rekommenderade lösningar ska möjliggöra verksamheten att nå högre leveranssäkerhet och utnyttjande av kapacitet / This thesis project has been carried out within the Degree Programme in Mechanical Engineering, Industrial Business Administration and Manufacturing at the Royal Institute of Technology, Department of Sustainable Production Development. The project was carried out in the spring of 2018, commissioned by BAE Systems Hägglunds in Örnsköldsvik, with the purpose of analyzing the unit of Prototype & Hulls production planning, production preparation, capacity, loading and priorities in the business. The goal by this study has been to find improvement areas and working methods for better and more effective planning. The unit of Prototype & Hull manufactures vehicle bodies for armored military vehicles and includes a development workshop capable of manufacture newly developed vehicles and market wagons. The studied department currently has problems and obvious shortages in production preparation, loading and capacity planning, where estimated operating hours from production preparation are incorrect and new loading can be planned without the previous impact assessment. The unit is also characterized by a short‐term view of its production planning and lacks standardized and unified approaches to address problems. During the project, results from interviews, observations and samples in the workshop have shown and identified several areas of improvement within the business. A couple of recommendations to address the company's problems are highlighted by the author as implementing standardized working procedures, correct queuing times for stations in the workshop, feedback from operators at machining departments to production preparation, and that the department should clearly define its capacity to meet real‐world utilization. The author's hopes with the results of this study are that recommended solutions will enable the business to achieve higher delivery reliability and utilization of capacity.
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Příprava a řízení stavební zakázky / Preparation and Management of the Building OrderBartoš, Miroslav January 2015 (has links)
This thesis focuses on the theme of preparation and management of construction work contract in its theoretical and empirical level. Theoretical part deals with the description of contractor’s preparation for construction in the form of supply, pre-production and production preparation. It also deals with the issues of planning in the form of structuring of a building project and its duration, including the description of schedule planning methods. Theoretical part ends with a passage about automated preparation and construction implementation, together with a definition of basic terms concerning private and public procurement. Practical part answers the question of description, analysis and organization of particular construction contract and together with contractor’s administrative treatment of construction preparation meets the appointed target. Closing part consists of a suggestion of methodology for processing contractor’s preparation using Contec software.
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Řízení stavební zakázky ve stavebním podniku / Building Order Management in the Building CompanyEis, Jan January 2013 (has links)
The master's thesis describe system of management construction project and elaboration prize offer from the perspective of contractor of building. Objectiv of this work is to introduce whit specific principles, procedures and methods, that are needed to prepare and management of construction contracts and their subsequen application to specific construction work - new building of locksmith in Chotěboř.
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Řízení stavební zakázky při správě a údržbě silnic / Building contract management in the management and maintenance of roadsSedláček, Lukáš January 2016 (has links)
This diploma thesis deals with the topic of preparation and management of a construction contract to manage and maintain roads. The aim is to analyze the management of the selected construction contract, the suggestion of my own solution to the problem and the generalization of the knowledge for managing similar projects.
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Příprava a řízení stavební zakázky ve stavebním podniku / Construction Order Preparation and Management in Construction CompanyMoudrá, Michaela January 2016 (has links)
The aim of the thesis is to describe the preparation and management of construction contracts in terms of suppliers. In the thesis there are explained the basic terminology related to the preparation and management of construction contracts in terms of suppliers. The outcome of the thesis is the preparation of construction documentation from the supplier's perspective for the construction contract Agroturistika Kojatín.
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SNIŽOVÁNÍ HODNOTY STAVENIŠTNÍHO HLUKU POMOCÍ MODELOVÁNÍ VÝROBNÍHO PROSTORU STAVBY A ÚPRAV TECHNOLOGICKÝCH POSTUPŮ PŘI VÝSTAVBĚ / REDUCING THE VALUE OF CONSTRUCTION NOISE BY MODELING THE PRODUCTION AREA OF CONSTRUCTION SITE AND BY ADJUSTING THE TECHNOLOGICAL PROCEDURES DURING CONSTRUCTIONKantová, Radka Unknown Date (has links)
This doctoral thesis focuses on noise generated during construction. It defines the legislative and physical aspects of this topic. It determines heavy machinery as noise source and categorizes them by their usage in construction technologies. It collects source data of the machinery noises which can be further used in prognostic models. It analyses the level of construction noise which can impact the nearby residential areas and offers methodology for modelling and designing the possible arrangements for the noise reduction. It defines partial effects of the construction site which are significant for the noise spreading. It establishes their role in the value of acoustic pressure level of the noise affecting the façade of the considered building. With the data collection and with case study verification it offers a prepared work tool which can be easily used to predict noise levels on construction sites and can be applied in the early constructions preparations. The structure of this thesis is planned for possible usage as university textbook or study support.
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