Problemet som arbetet förhåller sig till är Blekinge Tekniska Högskolas maskinlabs avsaknad av en snabb och precis bearbetningsmetod för att skära ut detaljer i plåt. Syftet med arbetet är således att med vetenskapliga produktutvecklingsmetoder konstruera en plasmaskärande CNC-maskin till maskinlabbet. Arbetet begränsas av en kravspecifikation som förväntas nås.  Dessa krav är att budgeten till den slutgiltiga konstruktionen inte överstiger 20.000:- SEK. Konstruktionens yttermått överstiger inte 1200x1200 mm, och går att förflytta på plant underlag. Ingående delar går att tillverka i en 3 – axlad CNC maskin, svarv eller fräs alternativt utgörs av standardkomponenter. Plasmaskärarens munstycke behöver vara rörlig i tre dimensioner, där höjdled medges rörlighet från 0 - 40 mm. Precisionen för CNC-maskinen är minst 0,1 mm. Ett arbetsbord som är motståndskraftigt mot brännarens genomskärning skall konstrueras. Kablar från motorer och plasmaskärare hanteras på ett sätt sådant att de inte stör maskinen under drift.  Metoderna som använts under produktutvecklingsprocessen baseras på ett flertal steg med poängsättningsmatriser där olika lösningar ställs mot varandra och utvärderas. För modellering av systemets komponenter har mjukvaruprogrammet Autodesk Inventor använts. Vid beräkning av belastningsfall har stress Analysis i Inventor använts. Beräkningar har också utförts analytiskt och jämförts med de erhållna från Inventor.  Arbetet resulterade i ritningsunderlag, BOM-lista och digital konstruktion för en 3-axlig plasmaskärande CNC-maskin. Resultatdelen består även av beräkningar som påvisar konstruktionens hållfasthet, samt maskinens precision och hastighet. Dessa resultat bedöms uppfylla alla krav utifrån den givna kravspecifikationen. Utformningen av CNC-maskinen visade sig vara omfattande. Avgränsningar som gjordes med avseende på detta var att fokusera produktutvecklingsprocessen på maskinens övergripande utformning. Detta för att de element av maskinen som ansågs vara mer kritiska för maskinens funktion hamnade i fokus. / The problem the work relates to is the lack of a fast and precise processing method for cutting out details from sheet metal at Blekinge Institute of Technology’s machine lab. The purpose of the work is thus to construct a plasma cutting CNC machine for the machine lab using scientific product development methods. The work is limited by requirements and specifications that are expected to be met. These requirements are that the budget for the final construction does not exceed 20.000 SEK. The outer dimensions of the construction do not exceed 1200x1200 mm and can be moved on a flat surface. Parts for the construction can be manufactured in a 3-axis CNC machine, lathe or mill. Alternatively, purchased parts are composed of standard components. The plasma cutter’s nozzle needs to be movable in three dimensions, where the height is allowed mobility from 0 - 40 mm. The precision of the CNC machine is at least 0.1 mm. The work table is required to be resistant to the torch cutting through. Cables from the motors and plasma cutter are handled in such a way that they do not disturb the machine in operation.  The methods used during the product development process are based on several steps with scoring matrices where different solutions are compared and evaluated. For modeling of the system’s components the software Autodesk Inventor has been used. For calculations of load cases, the Stress Analysis Tool in Inventor was used. Calculations have also been performed analytically and compared with those obtained from Inventor.  The work resulted in drawing documents, BOM list and digital construction for a 3-axis plasma cutting CNC machine. The result part also consists of calculations that demonstrate the construction’s strength, as well as the machine’s precision and speed. These results are judged to meet all requirements based on the given specification. The design of the CNC machine turned out to be extensive. The scope of the work was therefore limited to focus the product development process on the machine’s overall design so that the elements of the machine that were considered more critical for the machine’s function came into focus.

&ldquo / Numerically Controlled&rdquo / (NC) machine tools, which are automatically operated by encoded (digital) commands, are capable of machining components with quality and quantity. Manufacturing industry heavily depends on these machines. Many different control architectures have been adapted in today&rsquo / s CNC technology. Centralized control system is quite popular in industry due to its ease of implementation. If the number of controlled axes on a CNC machine tool (&gt / 3), increases so does the computational burden on the central processors. Hence, more powerful processors are needed. An alternative architecture, which is not commonly used in CNC technology, is the decentralized (distributed) control. In this topology, the tasks handled by the distributed controllers that are interconnected to each other by a communication network. As the need arises, a new controller can be added easily to the network without augmenting the physical configuration. Despite its attractive features, this architecture has not been fully embraced by the CNC industry. Synchronization among the axes in the coordinated motion is proven to be quite challenging. In this thesis, alternative distributed controller architecture was proposed for CNC machine tools. It was implemented on a 3-axis CNC milling machine. Open-loop control performance was investigated under various conditions. Different communication protocols along with different physical communication interfaces and a number of controller hardware were devised. An industry-standard network (RS-485) was set up by interconnecting these distributed controllers. Different data transmission protocols were devised in order to establish appropriate communication methods. Also, computer software (a.k.a. graphical user interface), which can coordinate the interconnected controllers, interpret NC part programs and generate reference position data for each axis, was designed within the scope of this thesis.

This Masters thesis examines the production of a revolver frame and the implementation of a new CAM system for the manufacturing process. This thesis contain four parts. The first part is focused on the current manufacturing process. The second part of the thesis consists of a new proposal to use progressive rotary tools and elements of automation for inspection by the Equator Gauging System. The third part proposes a new manufacturing strategy for the revolver frame. At the end of the thesis, the production times of proposed and current technologies are compared.

Byggnadsinformationsmodellering (BIM) som begrepp har existerat i mer än 20 år och arbetssätt som innefattar BIM är fortfarande ett område i stark utveckling. BIM är ett arbetssätt som använder sig av digitala modeller med särskilt fokus på att knyta an- och dela information. En BIM-integrering medför en stor kostnad vilket har begränsat arbetssättet till de större företagen. Därav har det inte spridits till de mindre företagen i samma omfattning.  Denna fallstudie använde sig av en Trimble X12 och terrester laserskanning som metod för att utforska möjligheterna kring digital integrering hos ett mindre tillverkningsföretag. Detta skedde genom att skapa en nerskalad BIM-modell över en utvald CNC-maskin med dess tillbehör med hjälp av punktmoln och RGB-bilder i mjukvaran Autodesk Inventor. Datainsamling, utförandet och analys av punktmolnskvalitet genomfördes med hjälp av en kvantitativ process. RMS (Root Mean Square) beräknades genom att ta referensmått på CNC-maskinen med måttband för jämförelse med mått i punktmoln. Informationen till den nerskalade BIM-modellen utformades efter företagets behov. Med hjälp av semistrukturerade intervjuer hämtades information in gällande BIM och digitala tvillingar i form av tillvägagångsätt, metodutförande och utmaningar. Punktmolnet bearbetades i Autodesk ReCap för vidare modellering och hade ett medelöverlapp på 56 %, medelosäkerhet på 0,5 mm med ett RMS-värde på CNC-maskinens punktmoln på 6,5 mm. Terrester laserskanning visar sig vara otillräcklig för att noggrannt skanna in den utvalda CNC-maskinen, då den har flera reflektiva och mörka ytor. Detta förhindrar en låg osäkerhetsnivå. Studien föreslår därav andra möjliga alternativ som kan komplettera TLS för att förbättra punktmolnets kvalitet, men som kräver ytterliggare forskning. BIM-modellen berikades med information med hjälp av en ritningsfunktion i Autodesk Inventor i PDF-format. Ritningar presenteras i olika vyer tillsammans med informationstabeller och dimensionsmått efter företagets val av information. Ritningarna, BIM-modeller och arbetssätt utvärderades med företaget i fråga. BIM-modellen visade sig vara detaljmässigt överflödig för företagets intressen. Modellen tog två veckor att framarbeta, vilket anses vara för kostsamt för företaget i fråga. Men den information som modellen var berikad med gav positiva tankar kring framtida BIM-integrering i verksamheten, speciellt inom underhåll och komplettering av underlag för äldre och modifierade maskiner. Studien visar på att mer forskning kring digital integrering i mindre tillverkningsindustrier behövs. / Building information modeling (BIM) is a term that has existed for more than 20 years and is still developing. BIM utilizes enhanced digital models with attributes that focus on adding and sharing information. BIM is very costly to implement, limitingits use to mainly the larger companies. Thus, BIM has not been as widespread regarding smaller businesses. This case study explores the area of digital integration of a BIM-model of a CNC-machine in a smaller manufacturing company. With the aid of a Trimble X12 and terrestrial laser scanning, the study investigated the process of creating a scaled down BIM-model detailing a selected CNC-machine by using point clouds and RGB-images in the software Autodesk Inventor. The data collection, execution, and point cloud quality were analysed with a quantitative process along with RMS-calculations of measurements in the point cloud to reference measurements. The information assigned to the model was according to the company's needs. Using semi-structured interviews, the area of BIM and digital twins regarding the process, methods and challenges were discussed.  The point cloud was processed in Autodesk ReCap for further modeling and had an average overlap of 56 %, an average uncertainty of 0,5 mm with an RMS-value of the CNC-machines point cloud of 6,5 mm. Terrestrial laser scanning proved to be insufficient when it comes to scanning the CNC-machine, as it had multiple reflective and dark surfaces, which prevented a low level of uncertainty. Thus this study proposes several other techniques that can be combined with TLS to improve the point cloud quality, which will require further research. The BIM-model was enriched with information by using Inventors' drawing features. These were then presented in different views together with tables of information and dimensions after the company’s chosen information. The drawings, BIM-models and workflow were then evaluated with the Aknes Mekaniska company. In terms of its level of detail The BIM-model proved to be superfluous, for the company’s interests. The model took two weeks to produce, which was deemed too costly for the company in question. But the information attached to the model resulted in positive thoughts from the company regarding future BIM-integration, specifically in maintenance and supplementing documentation of older or modified machines. In summary, the results of the study points to the need of further research of digital integration in smaller manufacturing companies.

The thesis deals with design of robotic cell for operation with CNC machine. When CNC machine is machining, inactive robot is used for deburring specific edges on the workpiece with help of pneumatic spindles. Thesis include design of end-effectors for handling and deburring operations, design and placement of individual parts of robotic cell. Part of the thesis deals with safety of the cell. Next part of thesis is focus on finding out cycle time of the robot. Robot have to manage cooperate with CNC machine and deburr edges in time. Cycle time is find out at simulation study in software called Tecnomatix Process Simulate. On the end of thesis is technical-economics evaluation

The diploma thesis is focused on the production of body for cylinder locks. This is production of very small and accurate parts. In the first part there is described the function of the lock, the sort of cylinder locks, their components and the basic types of safety elements. The second part is focused on the production of given type of body. The thesis deals with either existing production technology or proposals of possible innovation. This firstly consists in new organization of manufacturing operations. At the close we can find comparison of existing technology and new proposal.

本研究針對台灣工具機產業廠商，探索其研發專案知識管理對新產品開發績效的影響，及其技術知識特質對知識管理的關聯性。本論文以深入個案訪談法為主要的研究方法，訪談國內具代表地位的二家工具機業大廠之設計及開發部門，並自其中各選擇二個研發專案作為研究對象。 　　本研究歸納分析所得到的研究發現如下： 　　【研究發現一】研發專案知識吸收來源愈多、範圍愈廣、組織學習活動愈多，其新產品開發績效愈高。 　　【研究發現二】研發專案知識創造技術突破愈多、創新價值愈高，其新產品開發績效愈高。 　　【研究發現三】研發專案知識蓄積文件化程度愈高、蓄積活動愈多、累積專案核心能耐愈多，其新產品開發績效愈高。 　　【研究發現四】研發專案知識擴散方式愈多、擴散活動愈多，其新產品開發績效愈高。 　　【研究發現五】技術知識變動程度對研發專案的知識管理有明顯的影響。 　　【研究發現六】技術知識外顯程度對研發專案的知識管理有明顯的影響。 　　【研究發現七】技術知識路徑相依度對研發專案知識管理的影響，似乎不是很明顯。 　　【研究發現八】技術知識模組化程度對研發專案知識管理的影響，似乎不是很明顯。 　　【研究發現九】技術知識複雜化程度對研發專案的知識管理有明顯的影響。 　　因此，本研究建議企業為了提升新產品開發的成效，的確需要強化知識管理，同時其研發部門應設計符合技術知識特質及利於推動知識管理的組織型態與作為。平時應作好內部技術傳承及外部技術來源佈置工作，並在新產品開發不同階段妥善配置適合的資源與人力。 / This research is focused on Taiwan's CNC machine industries for exploring the impacts of knowledge management on the performance of new product development. The influence of the characteristics of technological knowledge on knowledge management is also studied. The research was conducted mainly based on deep case studied. The research subjects include four R&D projects two which are selected from two companies of CNC machine industry. 　　The preliminary conclusions are as follows: 　　1. The more the R&D project knowledge is absorbed from different sources, wide ranges,and multiple organizational learning activities, the better the performance of new product development would be. 　　2. The more the R&D project knowledge creates the technological breakthrough and thenewly added value, the better the performance of new product development would be. 　　3. The more the R&D project knowledge is accumulated with the documentation, the amass of activities, and the core resourcefulness, the better the performance of new product development would be. 　　4. The more the R&D project knowledge is diffused in different patterns and activities, the better the performance of new product development would be. 　　5. There exists a direct relationship between the knowledge management of R&D project and the degree of change of technological knowledge. 　　6. There exists a direct relationship between the knowledge management of R&D project and the degree of explicitness of technological knowledge. 　　7. There doesn't exist a direct relationship between the knowledge management of R&D project and the degree of path dependence of technological knowledge path. 　　8. There doesn't exist a direct relationship between the knowledge management of R&D project and the degree of modualization of technological knowledge. 　　9. There exists a direct relationship between the knowledge management of R&D projects and the degree of complexity of technological knowledge. 　　As a result, it is suggested that the R & D departments of the companies possessed with different characteristics of technological knowledge should design the organizational form and activities that are conformed to the characteristics of technological knowledge for facilitating the practices of knowledge management. 　　The internal technology inheritance and the external technology resource deployment have to be executed ordinarily; and the appropriate resources as well as human powershall be properly allocated in accordance with the different steps of new product development with a view to intensifying the satisfactory result.

This thesis solves the impact of conventional compensation to the volumetric accuracy of the CNC machine. It is therefore a practical research work, where are in the theoretical introduction mentioned requirements for machine tools, the types of errors that can occur on three-axis kinematics, compensation for the control system Siemens Sinumerik 840D sl and devices by means of which are these compensation under the work formed and subsequently verified. In this work can be seen the measured values and graphs from each measurements, a detailed analysis of the results and drawing conclusions from these results.