Notre recherche s’inscrit dans le domaine du génie industriel et se positionne plus précisément dans le design. L’objet général de cette thèse est d’intégrer la Réalité Virtuelle immersive comme outil de représentation dans le processus de conception des produits nouveaux, afin d’améliorer la boîte à outils du designer, de le comparer et d’analyser son influence par apport aux outils de représentation Traditionnels (T) et Numériques (N), d’aide à la création et à la communication des idées utilisés en Design. Pour les outils T et N, nous analyserons plus particulièrement le dessin, la maquette physique et les logiciels de Conception Assisté par Ordinateur (CAO). Notre but est de proposer une méthode destinée à aider plus particulièrement deux acteurs de la conception (le designer et l’architecte) à mieux choisir leur outil de représentation durant le processus de design. Nous montrerons l’utilité d’intégrer la Réalité Virtuelle RV comme une nouvelle technologie à leur démarche de travail. Les expérimentations menées nous permettent ainsi de dégager les rapports de la RV dans le processus de design. Ainsi, de montrer : - une influence positive de la RV sur l’évaluation esthétique (selon la vision du designer) et technique (selon la vision des acteurs de la conception) du produit nouveau. - une meilleure compréhension de l’objet par les intervenants spécialistes (industriels, décideurs..) et les non-spécialistes (utilisateurs, consommateurs..). Notre recherche ouvre des perspectives pour élargir l’application de la RV dans d’autres projets et d’améliorer l’outil à travers de la naissance d’une série d’applications réservées au designer / Our research is in the field of industrial engineering and it is positioned specifically in the design. The general purpose of this thesis is to integrate the immersive Virtual Reality as a tool of representation in the process of new products design to enhance the toolkit of the designer, to compare and analyze its influence by providing the tools of traditional (T) and digital (N) and to support the creation and communication of ideas used in Design. For these tools of T and N, we will analyze in particular drawing, mock-up and software for computer aided design (CAD). Our goal is to propose a method to help especially the two actors of design (the designer and the architect) to choose the best tool for representation during the design process. We show the usefulness of integrating Virtual Reality VR technology as a new approach to their work. The experiments conducted allow us to identify the relationship of VR in the design process. Thus, to show: - A positive influence of VR on the aesthetic evaluation (according to the vision of the designer) and technology (according to the vision of those involved in design) of new product. - A better understanding of the subject specialists by stakeholders (industry, policy makers ...) and non-experts (users, consumers ...). Our research offers a potential to broaden the application of VR in other projects and improve the tool through the birth of a number of applications available to the designer

Denna rapport innefattar produktutvecklingen av en expansionsring till en friktionsaxel. En expansionsring har enligt design en inre sliryta som skall glida mot en spinnande axel samtidigt som en yttre friktionsyta skall greppa en papphylsa. Utvecklingen av expansionsringen är sedan tidigare påbörjad av uppdragsgivaren, men behövde utvecklas mer för att eliminera de problem som uppstått. Syftet med det här arbetet är att förbättra och utveckla den nuvarande prototypen till en miljövänlig och priseffektiv produkt som håller under acceptabel livslängd. Tidigare prototyper från uppdragsgivaren hade samtliga problem av olika typer. Dessa problem innebar att ett påspänt material lossnade och trasslade in sig i friktionsaxeln. Ett annat betydande problem uppstod när lösningen var att limma fast ett material vilket ledde till en stark odör för operatören. Här påbörjades projektet med en ny produktframtagning där de äldre prototyperna sågs över tillsammans med en generering av nya idéer där både material och design revideras. Material väljs utifrån de kriterier uppdragsgivaren satt för priseffektivitet och miljöpåverkan men även för att matcha designkonceptets funktionalitet. Därefter görs analyser för att se över prototypens duglighet på en teoretisk nivå. När analysen var klar kördes prototypen genom praktiska tester för att se om designen och materialet höll och var redo att produceras för kund. Efter forskning inom materialalternativ, valdes PET-NATUR som det material som teoretiskt skulle kunna klara av de krav som sattes för expansionsringen. En produktframtagningsspecifikation och konceptutvärderingsmatris användes för att säkerställa att designen som vidareutvecklades matchade arbetsgivarens kriterium. Den slutgiltiga prototyp var en enhetlig ring vars sliryta och friktionsyta bestod av samma material. Detta vinnande koncept innebar en förenklad och därmed priseffektivare tillverkning samt monteringsprocess. Analysen av detta koncept gjordes med åtanke på resultaten hos både materialvalet samt designutvecklingen. Funktionalitet bevisades med hjälp av illustrationer samt beräkningsexempel på krafter i systemet och de termiska värdena beräknades. Båda dessa resultat påvisade vidareutveckling i form av praktiska tester. När de praktiska testerna kunde genomföras gjordes tre stycken tester på ringen. Testerna mätte temperaturer, dragkraft av material och lufttryck i systemet. Dessvärre visade sig att IR termometern som hade som syfte att kontrollera exakta temperaturer var felkalibrerad. Detta innebar opålitliga resultat. Dessutom var framtagningen av prototyperna långt ifrån perfekt vilket också ansågs påverka resultaten. Ringarna påvisade ändå en god funktionalitet i drift med stabila värden i dragkraft, vilket innebar att designen var funktionärlig. Slutsatsen blev trots detta att lösningen inte gav tillräckligt goda resultat för produktion. Efter testerna kunde tydlig formändring iaktas vilket innebar att den önskade livslängden inte kunde garanteras. Alltså behöver antingen materialet eller designen utvecklas vidare. / This thesis contains the product development of an expansion ring for a friction shaft. An expansion ring has according to design an inner surface to slide against the friction shaft and an outer friction surface to grip the socket. The development of the expansion ring has previously been started by the employer but needs more improvement to eliminate the problems that has previously been shown.  The intention with this project is to improve and develop the current prototype to an environmentally friendly and price-efficient product that last for an acceptable lifespan. Previous prototypes from the employer all had different types of issues. These problems meant that the material fasten above the rings loosened and got caught into the friction shaft. Another significant problem arose when the solution was to glue the friction material to the slide material, which led to a strong odor for the operator.  That is why a new development of prototypes was started where old prototype were looked over, and new ideas generated where both the material and design was revised.  The material to use is chosen in consideration of the employer’s criteria for price-efficiency and environmental impact as well as to match the design concepts functionality. Thereafter, analyzes were made to review the capability at a theoretical level. When the analysis was complete, the prototypes were run through practical tests to see if the design and materials are in order and ready for producing toward customers. After research in material alternatives, PETNATUR was chosen as the material that theoretically meet the requirements set. A product development specification and a concept evaluation matrix were made to ensure that the design matched the employer’s criteria. The final prototype was a uniformed ring whose slide surface and friction surface consisted of the same material. This concept meant a simplified and therefore a more cost-efficient manufacturing and assembly process. The analysis of this concept was made with the results of both the material selection and design development in mind. Functionality was demonstrated by means of illustrations and examples on forces in the system, and the thermal values was calculated. Both these results showed value in further practical tests. In the tests, three tests were made, the tests measured temperature, pulling force of material and air pressure in the system. unfortunately, the IR-thermometer that was used to control the temperature wasn´t calibrated correctly. This meant that the results were unreliable. In addition, the production of prototypes wasn´t correctly made which was also considered to affect the results. The rings still showed good functionality during use, with stable values in the pulling force which meant that the design was functional. However, the conclusion was made that the solution did not produce enough result for production. After the tests were made, a clear change of the shape been observed which meant that the desired life expectancy couldn’t been guaranteed. Therefore, either the material or design need further development.

Denna rapport behandlar ett examensarbete som gjorts på Goodtech Solutions AB i Karlstad. Examensarbetet är ett avslut på Högskoleingenjörsprogrammet i maskinteknik vid Karlstads universitet. Målet med projektet var att utveckla en ny typ av lösning för ett ramverk till en bulkhanteringslinje för att effektivisera tillverkningen och på så sätt öka lönsamheten på produkten. Produktutvecklingsprocessen låg till grund som metod för projektet och genom att steg för steg följa de olika faserna kunde en rad koncept tas fram. Ur dessa kunde ett slutgiltigt konceptval göras och därefter skapa en CAD-modell med hållfasthetsberäkningar som underlag. Den nya konstruktionen löser de tidigare problemen med en robust ram och förenklad konstruktion samt fullständig tillgång till underhållspunkter. Ramverket är konstruerat med hänsyn till innermåtten på en ISO-container och är även dimensionerad för både svartstål och rostfritt vilket har resulterat i en ökad flexibilitet hos produkten. / This report deals with a degree project done at Goodtech Solutions AB in Karlstad. The degree project is a conclusion to the Bachelor of Science program in mechanical engineering at Karlstad University. The aim of the project was to develop a new type of solution for a framework for a bulk handling line to make production more efficient and thus increase the profitability of the product. The product development process was based on the method for the project and by following the different phases step-by-step, a number of concepts could be developed. From these, a final concept selection could be made and then create a CAD model with strength calculations as a basis. The new design solves the previous problems with a robust frame and simplified design and complete access to maintenance points. The framework is designed with regard to the inner dimensions of an ISO container and is also dimensioned for both black steel and stainless steel, which has resulted in an increased flexibility of the product.

With constantly changing regulations on emissions, heavy commercial vehicles manufacturershave to adapt for their products to preserve their quality while meetingthese new requirements. Over the past decades, noise emissions have become a greatconcern and new stricter laws demand companies to decrease their vehicle pass-bynoise target values.To address the requirements from different disciplines, Scania follows a simulationdriven design process to develop new concept models EATS. The collaboration amongengineers from different fields is thereby necessary in order to obtain higher performancesilencers. However, the pre-processing step in terms of acoustic simulationsis time-consuming, which can slow the concept development process.In this thesis, a new method was introduced to automate the pre-processing of silenceracoustic models and allow for design optimisation based on acoustic performanceresults. A common Scania product study case was provided to several theseswithin the NXD organisation. The collaboration among the master thesis workersaimed to demonstrate the benefits of KBE and MDO and how they can be integratedwithin Scania’s current concept development and product introduction processes.The performed work was divided in the following steps: data collection, methoddevelopment and concluding work. The first step consisted in gathering sufficientknowledge by conducting a thorough literature review and interviews. Then, an initialmethod was formulated and tested on a simplified silencer model. Once approvedand verified, the method was applied to the study case EATS.The study case showed that a complex product can have its acoustic pre-processingstep automated by ensuring a good connectivity among the required software anda correct denomination of the geometrical objects involved in the simulations. Themethod investigated how morphological optimisations can be performed at bothglobal and local levels to enhance the transmission loss of a silencer. Besides optimisingthe acoustic performance of the models, the method allowed the identificationof correlations and inter-dependencies among their design variables and ouput parameters.

Cette thèse traite de l’utilisation des technologies de Réalité Virtuelle (RV) dans les activités de Conception Assistée par Ordinateur (CAO). Plus précisément, les travaux de recherche portent sur une approche pour la modification directe et interactive d’objets CAO, notamment adaptée aux processus de conception en industrie. Généralement, les logiciels de CAO requièrent des compétences (expérience et connaissance), à la fois sur les fonctionnalités même du logiciel et les représentations utilisées, ainsi que sur les objets CAO concernés (principalement sur leur historique de construction, savoir de quelle façon ils ont été construits). D’un autre coté, la RV apporte de nouveaux paradigmes d’interaction 3d, tels que l’immersion et la perception multi-sensorimotrice (stéréoscopie, audio 3d, haptique, etc.), et il apparaît nécessaire de disposer de middleware intelligents pour gérer les objets CAO dans ces Environnements Virtuels (EV) immersifs. De précédents travaux ont proposé un mécanisme d’édition implicite d’objets CAO permettant la modification du Graphe d’Historique de Construction (GHC) de ces objets à partir de la manipulation de la représentation visuelle 3d de ces objets. Basé sur un processus d’étiquetage des éléments de frontière (B-Rep), et couplé avec un moteur d’inférence, ce mécanisme décrit un chaînage arrière entre ces éléments de frontières et les opérateurs d’un GHC. Cependant, cette approche avait pour limite majeure de proposer un modèle particulier de GHC, ce qui l’empêchait d’être intégrée à des systèmes CAO fermés ou commerciaux tels que ceux utilisés dans l’industrie et en particulier l’industrie automobile. Notre première contribution consiste donc en la proposition d’un modèle et d’une architecture permettant de généraliser ce mécanisme de chaînage arrière à n’importe quel système CAO basé sur les représentations de type B-Rep et GHC. Pour ce faire, nous avons spécifié plusieurs structures d’encapsulation pour la gestion des opérateurs du GHC ainsi que de leurs paramètres, et des composants de B-Rep. Deuxièmement, le précédent étiquetage, désormais attaché à ces structures d’encapsulation et non plus aux éléments de B-Rep directement, a été étendu pour permettre un chaînage arrière multiple. Certains éléments de frontières peuvent en effet être le résultat de plusieurs opérateurs du GHC, être liés à plusieurs éléments "parents", et ainsi plusieurs décisions peuvent être inférées à partir de leur manipulation. Ces avancées rendent possible la modification directe et intuitive d’objets CAO déjà existants (i.e. via le parcours et l’analyse de base de données CAO précédemment créées), en analysant leur GHC et en remplissant nos structures avec les données nécessaires. De plus, le mécanisme de chaînage arrière multiple renforce la capacité du moteur d’inférence, à libérer les utilisateurs, et spécialement les non-experts, de connaissances trop complexes à propos des modèles CAO. Comme preuve de concept de notre modèle, nous présentons un exemple détaillé de notre approche sur le noyau géométrique de CATIA et montrons comment notre modèle permet d’envisager un nouveau concept d’interaction en revue de projet immersive : permettre aux participants de modifier directement les modèles CAO sans quelque interaction sur station de travail. / This thesis addresses the use of Virtual Reality (VR) technologies in the activities of Computer-Aided Design (CAD). More precisely, this research focuses on an approach for direct and interactive modifications of CAD objects, an approach which might be adapted to the conception process in industry. Usually, CAD software requires some skills (experience and knowledge), on the software’s functionalities and representations, as well as on CAD objects (principally on their design history, on the way they were built). Moreover, VR technologies bring new interactive paradigms of 3D interaction, such as immersion and multi-sensorimotor perception stereoscopy, 3D audio, haptics, and so on), and one needs intelligent middleware to manage CAD objects in these immersive Virtual Environments (VE). Some previous work proposed a mechanism allowing implicit edition of CAD objects, from the manipulation of their 3D visual representations. Based on a technique of Boundary Representations (B-Rep) elements labelling, and coupled with an inference engine, this mechanism describes a backward chaining of B-Rep elements towards the operators of a dedicated model of Constructive History Graphs (CHG). However, this approach had a major limitation: since it was based on a specific model of CHG, its integration within commercial CAD softwares used in industry (and especially in automotive industry) was far from obvious. Our first contribution is then to propose a data model and an architecture to generalize this backward chaining mechanism to any of CAD system based on B-Rep and CHG representations. In order to do that, we have designed several encapsulations structures, to manage CHG operators and their parameters, and the B-Rep components. Secondly, the previous labelling, now attached to these structures, has been extended to enable a multi backward chaining. Actually, some B-Rep elements may be the result of several CHG operators, and thus, several decisions may be inferred from their manipulation. These improvements make possible to have direct and interactive modifications of existing CAD objects by parsing their CHG to fill our structures with useful data. Moreover, the multi backward chaining mechanism reinforces the ability of the inference engine to free users, especially non-expert ones, from too complex understandings on CAD models. As a proof of concept of our model, we present an detailed example of our approach on the geometric kernel of CATIA and we show how one can consider new concepts of interaction during immersive project reviews: to allow participants to directly modify CAD objects without any interaction on desktop workstation.

The standard for standing household dishwashers to date includes some means of adjusting the height of the upper basket in order to facilitate a more efficient loading of dishware. Ordinarily this is done by lifting the basket and locking it in a few positions. A more efficient and satisfactory method of handling the elevation that instils a premium sensation was to be developed. A design process was initiated and using CAD, a 3D model with associated drawings was created. A FEM analysis was conducted on the most vital components and a subsequent prototype was built. Preliminary results indicated flaws in the construction, however developing solutions appeared promising. The FEA concluded that the key components were sufficiently dimensioned for the tasks given. In the end, the project requirements were fulfilled although with set conditions modified, and without an end user trial.

Connecting rod are found in most combustion engines and transmits thrust from the piston to the crankshaft. The connecting rod needs to withstand forces from the piston and inertia forces which results in axial tension, compression stresses and bending. Today the most common manufacturing techniques in automotive industry are drop-forging, die-casting and the Powder Metallurgy technique used is powder-forging. In this Master Thesis different connecting rod designs for a single press PM manufacturing process were created and evaluated as a part of Höganäs AB's Total Powder Metal Car project, TPMC. This paper will serve as a basis for future connecting rod projects at Höganäs AB when choosing a suitable connecting rod design. The main objective of this Master Thesis is to evaluate different designs in regards to the following: Buckling strength Fatigue life Manufacturing rating The study shows that there is evidence that a single pressed connecting rod is possible. No absolute answer of which design is the best is given in this paper since in depends on different parameters and application. For each parameter examined there are results presented and arguments for and against each design which can aid designers in future work. Suggestions of improvement on both the method and on the designs are presented in respect to the results. The improvements may potentially increase the fatigue life, buckling strength and improve manufacturability.

This report presents the combined work from two B.Sc. mechanical engineering students from Halmstad University. The thesis Tårtförpackningar represents 15 ECTS-credits and have been active over a 20-week period during the spring of 2019. The work that has been done with this thesis is an obligatory part of the education on a bachelor’s degree level. The purpose of the thesis is for the students to apply their theoretical knowledge they have gathered during this 3-year period and combine that with the practical collaboration with a company This thesis is a result of the collaboration between two students from Halmstad University and the packaging company INP in Ljungby. The project’s main purpose is to develop more user-friendly cake packaging since the packages today has at least one of following issues: hard to open, difficult to stack on each other, lack of stability on the bottom piece, the cake touches the lid and gets messy. With our packaging, we have succeeded in fulfilling all the above requirements and developed cake packages where it can accommodate a relatively heavy cake that doesn’t make the bottom to sag or touch the side of the lid. The design of the bottom part makes it easy to remove the cake from the package. It’s also easy to open the lid without it touching the cake. The various lids are designed based on our market research where one type of our lids has a simple design to enhance the cake, and the other type is where the packaging itself is emphasized.

Os ladrilhos hidráulicos são revestimentos produzidos utilizando aglomerante hidráulico, cuja tecnologia de produção não acompanhou a grande evolução tecnológica dos concretos, as disponibilidades de novos materiais e técnicas de utilização ocorrentes nos últimos anos, sendo assim esses revestimentos perderam espaço e competitividade no mercado pela característica artesanal de sua produção. O trabalho teve como objetivo desenvolver uma argamassa para produção de ladrilhos hidráulicos utilizando a tecnologia utilizada na produção de concretos de alto desempenho. Os agregados foram selecionados e compostos utilizando diferentes técnicas de empacotamento de partículas, essas técnicas foram implementadas experimentalmente e seus resultados foram analisados e comparados através da medida de massa unitária no estado compactado seco. Os aglomerantes foram selecionados de forma a atender a utilização de pigmentos claros e escuros necessários para a produção de ladrilhos hidráulicos decorativos, assim foram elaboradas duas diferentes composições de aglomerantes, a primeira com cimento Portland branco estrutural e metacaulinita branca, e a segunda com cimento Portland de alta resistência inicial resistente a sulfatos e sílica ativa de ferro-silício. Diferentes aditivos superplastificantes foram testados, sendo a medida de compatibilidade com os aglomerantes e a determinação dos teores ideais a serem utilizados com cada tipo de aglomerantes realizadas através da medida de consistência em mesa cadente. A avaliação das argamassas desenvolvidas para produção dos ladrilhos hidráulicos foi realizada através dos ensaios de compressão axial simples, tração na compressão diametral, e determinação do módulo de elasticidade. Os ladrilhos hidráulicos foram produzidos em fôrmas previamente elaboradas e moldados com auxílio de vibração, após desmoldagem e cura foram avaliados através dos ensaios de módulo de flexão, desgaste por abrasão, absorção de água, retração por secagem, ação química, e determinação das variações de dimensões em diferentes tempos de cura. Após elaboração, produção e avaliação dos ladrilhos hidráulicos, também foram realizados alguns testes práticos, e avaliados os custos dos materiais para produção desses revestimentos, como parte de um estudo para implementação da produção desses elementos em escala industrial. Os ladrilhos hidráulicos desenvolvidos apresentaram alto desempenho nas características avaliadas, com resistência à compressão axial simples de até 143 MPa e absorção de água próxima a 1%, também apresentando viabilidade de produção. / The hydraulic tiles are coverings produced by using hydraulic binders, whose production technology has not follow the great technological evolution of the concretes, the availabilities of new materials and the usual techniques in recent years, thus they have lost space and competition in the market due to their handicraft characteristic of production. This work had the objective to develop a mortar for production of hydraulic tiles using high performance concrete production technology. The aggregates were selected and proportioned using different techniques of particle packing, these techniques were implemented experimentally and their results were analyzed and compared through the measurement of the unit weight by rodding. The binders were selected to be used with clear and dark pigment necessity for production of decorative hydraulic tiles, thus two different mixture proportions of binders were elaborated, the first with structural white Portland cement and white metakaulin, and the second with high initial strength Portland cement resistant to sulphate and ferrosilicon silica fume. Different superplasticizer additives were tested, being the measure of compatibility with the binders and the determination of ideal proportions to be used with each type of binders measured in flow table consistency test. The evaluation of mortars developed for hydraulic tiles production was carried out by simple axial compression test, cylinder splitting test, and elastic modulus determination test. The hydraulic tiles were produced in a previously elaborated mould and molded by vibration, after dismoulding and cure were evaluated by flexural modulus test, wear by abrasion test, water absorption test, drying shrinkage test, chemical action test, and determination of the dimensions variations in different times of cure. After hydraulic tiles elaboration, production and evaluation, also were made some practical tests, and evaluated the material costs for production of these coverings, as part of an implementation study for production of these elements in industrial scale. The developed hydraulic tiles showed high performance in the evaluated characteristics, with simple axial compression strength until 143 MPa and water absorption about 1%, also showed production viability.

Estudou-se a caracterização de blocos sinterizados à base de Co-Cr-Mo visando a obtenção de próteses odontológicas por fresagem CAD/CAM. O processo de sinterização foi estudado e ocorreu através do transporte difusional de massa e calor no estado sólido, denominado sinterização no estado sólido. Esse fenômeno produz uma forte união entre as partículas devido ao transporte de massa, em escala atômica, sob condições controladas de tempo, temperatura e atmosfera. Foram realizadas sinterizações interrompidas a 800, 1000, 1200 e 1300°C nos tempos de 15 minutos, 1 hora e 4 horas. A liga foi caracterizada nas condições recebida e sinterizadas em termos de composição química, propriedades mecânicas e caracterização microestrutural. Para isto, utilizou-se fluorescência de raios X, dilatometria, ensaios de Arquimedes, ensaios de dureza, ensaios de compressão, microscopia eletrônica de varredura (MEV), microscopia óptica e microanálise eletrônica dispersiva (EDS). Os resultados composicionais indicam que a liga se encontrava dentro da faixa de composição química estabelecida pelo manual do fabricante e pela norma ASTM 1537. As partículas analisadas na condição pré-sinterizada exibiram formato esférico, indicando uma provável utilização de pós atomizados. A estimativa do levantamento da distribuição do tamanho das partículas foi realizado utilizando o programa de computador ImageJ, e a distribuição foi caracterizada como assimétrica positiva. O material no estado recebido se apresentou monofásico. A fase presente encontrada foi ?Co com estrutura cristalina CFC. Em contrapartida, as amostras sinterizadas apresentaram porções de fase ?Co, com estrutura cristalina hexagonal, fase esta formada a partir da transformação ?Co <-> ?Co, na qual, a energia armazenada na forma de defeitos é a força motriz da transformação. E sugere que a transformação ocorreu durante resfriamento. A amostra sinterizada por quatro horas em 1200°C apresentou-se no estágio final de sinterização, dado que os poros encontrados tinham aspecto arredondado e com densificação maior que 90%. Os resultados de compressão indicam tensão média de ruptura de 2523 ± 168 MPa. / This work studied the characterization of Co-Cr-Mo sintered blocks in order to obtain dental prosthesis by prototyping CAD/CAM. The sintering process was studied through diffusional mass transport in solid state, termed solid state sintering. This phenomenon produces a strong bond between the particles due to mass transport, at the atomic scale, under controlled conditions of time, temperature and atmosphere. The interrupted sintering was performed at 800, 1000, 1200 and 1300 ° C in times to 15 minutes, 1 hour and 4 hours. The alloy was characterized in conditions as received and sintered in terms of chemical composition, mechanical properties and microstructural characterization. For this, we used X-ray fluorescence, dilatometry, Archimedes tests, hardness tests, compression tests, scanning electron microscopy (SEM), optical microscopy and dispersive electron microanalysis (EDS). The results indicate that the alloy was within the chemical composition range established by the manufacturer and ASTM 1537. The particles analyzed in the pre-sintered condition showed spherical shape, indicating a likely use of atomized powders. The estimate of the particle size distribution was performed using ImageJ software, and the distribution is characterized as positive asymmetric. The samples in the received state were monophasic. This phase was found ?Co with FCC crystal structure. On the order hand, the sintered samples showed ?Co phase portions with hexagonal crystal structure, phase formed from the transformation ?Co <-> ?Co, in which the energy stored in the form of defects is the driving force of transformation and suggests that transformation occurred during the cooling. Sample sintered during four hours at 1200°C was in the final stages of sintering, since the pores were found aspect rounded and densification above 90%. The compression results indicate rupture stress at 2523 ± 168 MPa.