Den här rapporten beskriver ett examensarbete i elektroteknik på Kungliga tekniska högskolan. Syftet var att skapa en unik systemlösning där ett CAN-adapterkort (Controller Area Network) skulle integreras med ett system för övervakning av däcktryck i tunga fordon. Målet var att presentera mätvärden från ventilsensorer på en persondator. Systemet för övervakning av lufttryck heter J1939 – TPMS och är en färdig produkt. J1939 – TPMS skickar CAN-ramar på en CAN-buss i J1939-format. Dessa ramar ska läsas in av adapterkortet och presenteras på ett terminalprogram på en persondator. Arbetet har bestått av att utreda hur systemet J1939 – TPMS fungerar i detalj. Rollen för protokollet J1939 och dess förhållande till CAN har förklarats. Hur J1939-ramar tolkas och hur mätdata rörande TPMS avkodas har beskrivits i detalj. Principer för hur en CAN-nod fungerar har klargjorts. Baserat på detta har ett CAN-adapterkort konstruerats. Konstruktionen har inneburit komponentval, design av elektronikschema, design av mönsterkort och utveckling av inbyggd programvara. Resultatet blev ett färdigt och fungerande CAN-adapterkort som har testats med J1939 – TPMS. Kraven för projektet uppfylldes. Dock så kommer mer arbete med kortet och systemet behövas för att det ska bli en färdig produkt. Arbetet genomfördes hos Motion Control i Västerås AB i samarbete med Transeco Däckservice. / This report describes a degree project at the Royal Institute of Technology. The purpose was to create a unique system solution in which a CAN adapter card (Controller Area Network) was to be integrated with an air pressure monitoring system for heavy duty vehicles. The goal was to present measurement values ​​from valve sensors on a personal computer. The air pressure monitoring system is called J1939 - TPMS and is a finished product. J1939 - TPMS sends CAN-frames to a CAN-bus in J1939 format. These frames are to be read by the adapter card and presented on a terminal program on a personal computer. The job has been to investigate how the J1939 - TPMS system works in detail. The role of the J1939 protocol and its relationship with CAN has been clarified. Also, a detailed description of how J1939 frames are interpreted and how the measuring data TPMS is decoded is done. Principles for how a CAN node works has been clarified. Based on this, a CAN adapter card has been designed. The design has included component selection, design of electronics schema, design of computer cards and development of embedded software. The result was a ready-to-use CAN adapter card tested with J1939-TPMS. Requirements for the project were met. However, more work with the card will be needed to make it a finished product. The work was carried out at Motion Control in Västerås AB in cooperation with Transeco Däckservice (Transeco Tire Service).

The Formula SAE is a student based competition organised by SAE International where engineering students from a university design, develop and test a formula-style race car prototype to compete against other universities. The competition car needs to satisfy the competition rules set out by the organisers. The competition strives to stimulate original, creative problem solving together with innovative engineering design practices. In any race environment, the primary goal is always to be as competitive as possible. Due to the competitive nature of motor sport, vehicle components need to withstand various and severe stresses. The components of a race car vehicle are responsible for the vehicle’s handling characteristics and reliability. The chassis is a crucial and integral component of a Formula SAE competition car, primarily responsible for the vehicle’s performance characteristics. The chassis is the structural component that accommodates all the other components. A Formula SAE chassis is a structure that requires high torsional stiffness, low weight as well as the necessary strength properties. In this study, multiple Formula SAE chassis were designed and developed using computer aided design software. Each concept’s torsional stiffness, weight and strength properties were tested using finite element analysis software. The different concepts consisted of different design techniques and applications. All the concepts were analysed and assessed, leading to the identification of an acceptable prototype. The prototype was manufactured for experimental tests. The designed chassis complied with the Formula SAE rules and regulations. The weight, torsional stiffness and strength characteristics of the designed chassis frame were also favourable compared to accepted standards for Formula SAE chassis frames. The manufactured chassis was prepared for experimental tests in order to validate the simulation results produced by the finite element analysis. The torsional stiffness, weight and strength were experimentally determined and the results were compared with the corresponding simulations results. The comparison of the experimental and simulated results enabled the validation of the finite element analysis software. The study draws conclusions about the use of computer aided design and finite element analysis software as a design tool for the development of a Formula SAE chassis. Closure about the study is provided with general conclusions, recommendations and research possibilities for future studies. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2014

The GIS Industry has digitised cadastre from the best available paper maps over the last few decades, incorporating the inherent errors in those paper maps and in the digitising process. The advent of Global Positioning Systems, modern surveying instruments and advances in the computing industry has made it desirable and affordable to upgrade the placement, in terms of absolute and relative position) of these digital cadastres. The Utility Industry has used GIS software to place their assets relative to these digital cadastres, and are now finding their assets placed incorrectly when viewed against these upgraded digital cadastres. This thesis examines the processes developed in the software program called the ???Spatial Adjustment Engine???, and documents a holistic approach to semi-automating the upgrading of the digital cadastre and the subsequent upgrading of the utility assets. This thesis also documents the various pilot projects undertaken during the development of the Spatial Adjustment Engine, the topological scenarios found in each pilot, their solution, and provides a framework of definitions needed to explore this field further. The results of each pilot project are given in context, and lead to the conclusions. The conclusions indicate the processes and procedures implemented in the Spatial Adjustment Engine are a suitable mechanism for the upgrade of digital cadastre and of spatially dependant themes such as utility assets, zoning themes, annotation layers, and some road centreline themes.

The Formula SAE is a student based competition organised by SAE International where engineering students from a university design, develop and test a formula-style race car prototype to compete against other universities. The competition car needs to satisfy the competition rules set out by the organisers. The competition strives to stimulate original, creative problem solving together with innovative engineering design practices. In any race environment, the primary goal is always to be as competitive as possible. Due to the competitive nature of motor sport, vehicle components need to withstand various and severe stresses. The components of a race car vehicle are responsible for the vehicle’s handling characteristics and reliability. The chassis is a crucial and integral component of a Formula SAE competition car, primarily responsible for the vehicle’s performance characteristics. The chassis is the structural component that accommodates all the other components. A Formula SAE chassis is a structure that requires high torsional stiffness, low weight as well as the necessary strength properties. In this study, multiple Formula SAE chassis were designed and developed using computer aided design software. Each concept’s torsional stiffness, weight and strength properties were tested using finite element analysis software. The different concepts consisted of different design techniques and applications. All the concepts were analysed and assessed, leading to the identification of an acceptable prototype. The prototype was manufactured for experimental tests. The designed chassis complied with the Formula SAE rules and regulations. The weight, torsional stiffness and strength characteristics of the designed chassis frame were also favourable compared to accepted standards for Formula SAE chassis frames. The manufactured chassis was prepared for experimental tests in order to validate the simulation results produced by the finite element analysis. The torsional stiffness, weight and strength were experimentally determined and the results were compared with the corresponding simulations results. The comparison of the experimental and simulated results enabled the validation of the finite element analysis software. The study draws conclusions about the use of computer aided design and finite element analysis software as a design tool for the development of a Formula SAE chassis. Closure about the study is provided with general conclusions, recommendations and research possibilities for future studies. / MIng (Mechanical Engineering), North-West University, Potchefstroom Campus, 2014

The GIS Industry has digitised cadastre from the best available paper maps over the last few decades, incorporating the inherent errors in those paper maps and in the digitising process. The advent of Global Positioning Systems, modern surveying instruments and advances in the computing industry has made it desirable and affordable to upgrade the placement, in terms of absolute and relative position) of these digital cadastres. The Utility Industry has used GIS software to place their assets relative to these digital cadastres, and are now finding their assets placed incorrectly when viewed against these upgraded digital cadastres. This thesis examines the processes developed in the software program called the ???Spatial Adjustment Engine???, and documents a holistic approach to semi-automating the upgrading of the digital cadastre and the subsequent upgrading of the utility assets. This thesis also documents the various pilot projects undertaken during the development of the Spatial Adjustment Engine, the topological scenarios found in each pilot, their solution, and provides a framework of definitions needed to explore this field further. The results of each pilot project are given in context, and lead to the conclusions. The conclusions indicate the processes and procedures implemented in the Spatial Adjustment Engine are a suitable mechanism for the upgrade of digital cadastre and of spatially dependant themes such as utility assets, zoning themes, annotation layers, and some road centreline themes.

Foi avaliada a influência de microrganismos na corrosão e na reação de absorção ou liberação de hidrogênio em amostras de ferro Armco e do aço SAE 4140. Utilizou-se um consórcio microbiano, no qual estava presente a bactéria redutora de sulfato (BRS) Desulfovíbrio desulfuricans que, por meio de reações metabólicas, produz gás sulfídrico (H2S), conhecido por catalisar a reação de hidrogênio. Através de ensaios de permeação de hidrogênio em amostras de ferro Armco determinou-se a corrente de permeação e a concentração superficial de hidrogênio desenvolvida, utilizando-se uma célula de Devanathan-Stachurski. Primeiramente determinou-se a corrente em meio bacteriológico Postgate C abiótico, substituindo-o então pelo meio bacteriológico inoculado com o consórcio de microrganismos. Os conseqüentes transientes de corrente foram determinados em diferentes valores de potenciais catódicos, entre –1500 mV(ENH) e o potencial de corrosão do ferro. Observou-se um aumento na corrente de permeação após a colocação dos meios inoculados o que significa um maior fluxo de hidrogênio se difundindo através da amostra. Porém, após um determinado período de tempo (em torno de 30 horas) a corrente de permeação tende a se estabilizar em decorrência de alguns fatores como os depósitos biológicos formados na superfície metálica (biofilme), a formação de filmes de precipitação de sais em função da polarização catódica aplicada e também devido ao filme de sulfeto de ferro, dificultando desta forma a passagem do hidrogênio. Ensaios de tração de baixa taxa de deformação (BTD) com corpos de prova de aço SAE 4140, foram utilizados nos mesmos meios citados, ao potencial de corrosão e com aplicação de potencial catódico de –750 e –1000 mV(ENH), para avaliar a morfologia da fratura. Em meios com H2S produzido metabolicamente, observou-se fratura frágil, associada à fragilização pelo hidrogênio, ao contrário dos resultados obtidos em meios sem o H2S, que promoveram fratura dúctil. Ensaios potenciostáticos com as amostras de ferro Armco e o aço SAE 4140 foram realizados em condições semelhantes aos ensaios de permeação e de baixa taxa de deformação. Os corpos de prova foram analisados por microscopia eletrônica de varredura para observar o biofilme, bem como a morfologia da corrosão. Nos ensaios de potencial a circuito aberto intensa colonização da superfície por bactérias foi observada após duas horas, porém com aplicação de potenciais catódicos (–1000 mV(ENH)), observou-se um número menor de células bacterianas aderidas à superfície metálica. Os produtos metabólicos, principalmente o H2S, provenientes do metabolismo das bactérias redutoras de sulfato (BRS), aceleram o processo de corrosão, principalmente quando o meio em questão propicia zonas de anaerobiose como a formação de biofilme e a formação de sulfeto de ferro (FeS) sobre a superfície metálica. / The present investigation was undertaken to evaluate the influence of microorganisms on the corrosion and on the hydrogen absortion and evolution reaction of Armco iron and SAE 4140 steel samples. A mixed group of microbes was used, in which was present the Sulfate-Reducing Bacteria (SRB) Desulfovibrio desulfuricans that, through metabolic reactions, produces hydrogen sulfide gas (H2S), recognized for catalyzing the hydrogen reaction. The permeation current of hydrogen and its concentration on the surface were determined on Armco iron samples, using a Devanathan-Stachurski cell. The experiments were carried out in an abiotic Postgate C bacterial growth medium and after the current stabilization, which lasted 24 hours, this medium was replaced by on environment inoculated with microorganisms. The consequent current transients were determined for different cathodic potentials, from –1500 mV(ENH) to the iron corrosion potential. An increase in the permeation current was observed after the addition of the inoculated environment, which means a higher flux of hydrogen diffusing through the sample. However, after a certain period of time (around 30 hours), the permeation current tended stabilize, due to the biologic deposits formed on the metallic surface and to the films precipitated due to the cathodic polarization, which reduce hydrogen ion migration. Low-strain rate tests with SAE 4140 steel samples were used in the same environments, at the corrosion potential and with the application of cathodic potentials of –750 and –1000 mV(ENH) to evaluate the fracture morphology. In environments with metabolically produced H2S, a fragile fracture was observed, associated with hydrogen embrittlement, while in H2S-free environments a ductile fracture was produced. Potentiostatic tests with Armco iron and SAE 4140 steel samples were performed in similar conditions to permeation and low-strain rate tests. The samples were analyzed by Scanning Electron Microscopy (SEM) in order to observe the biofilm, as well as the corrosion morphology. In the samples without applied potential, a heavy surface colonization by bacteria was observed after 2 hours, while in the samples under cathodic potential (–1000 mV(ENH)) only few bacterial cells adhered to the metallic surface. It was observed that Sulfate-Reducing Bacteria (SRB) accelerate the corrosion process, mainly when the environment is able to provide anaerobeose zones such as the biofilm and the iron sulfide (FeS) on the metallic surface.

A proposta deste estudo é fornecer uma visão íntegra e profunda da vida em fadiga de um material aço SAE 5160 para a fabricação de feixes de mola, cujo objetivo principal é otimizar o projeto deste componente na tentativa de reduzir custo e peso, para tanto, o aço SAE 5160 submetido aos processos de tratamento térmico e shot peening, através do levantamento de uma curva de fadiga pelo ensaio de flexão por três pontos. Apresenta também, os resultados obtidos na caracterização do material, como pôr a análise de tensões residuais por difração por raios-X, das microestruturas, da dureza e da composição química, visando o objetivo de identificar possíveis variáveis que possam influenciar nas características técnicas e interferir na vida à fadiga deste aço SAE 5160. Os ensaios realizados mostram o comprometimento da resistência à fadiga deste material, pois é possível verificar uma não homogeneidade nos valores de dureza, a presença de descarbonetação e variação nos valores de tensões residuais, invalidando as amostras na ordem de cinquenta por cento. Com os resultados obtidos no levantamento da curva de fadiga e dados coletados em campo, é demonstrado a validação das curvas de projeto. / The purpose of this study is to provide a full and deep view of fatigue life of a steel material SAE 5160 for the production of leaf springs, whose main objective is to optimize the design of this component in order to reduce cost and weight, therefore the SAE 5160 steel was subjected to the heat treatment processes, and shot peening, via a test fatigue curve by the three-point deflection test. It also presents the results obtained in the characterization of the material, how to put the analysis of residual stresses by X-ray diffraction, the microstructure, hardness and chemical composition, in order to identify potential variables that may influence the technical characteristics and interfere with the fatigue life of the SAE 5160 steel. The tests performed present reduced resistance to fatigue of the material; it is not possible to verify the homogeneity of hardness, the presence of decarburization and variation in the values of residual stresses, invalidating the samples in the order of fifty percent. With the results in the lifting of fatigue and data collected in the field curve, is present the validation of design curves.

Made available in DSpace on 2016-12-08T17:19:35Z (GMT). No. of bitstreams: 1 Rinaldo Puff.pdf: 1851165 bytes, checksum: 1c6629dad35bf876d8e26f6a5fd89ba8 (MD5) Previous issue date: 2002-07-28 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The purpose of this work is to present and discuss the results obtained in the study of fatigue properties for SAE 1075 steel, cold rolled, quenched and tempered, when subjected to two different cutting processes, and with different finishing processes. This type of material is frequently applied in components with elastic characteristics, like planar springs and valves. The cutting processes used were the laser cutting and electrical erosion by wire, frequently used for obtaining prototype components in the machines and equipments industry. Regarding the finishing processes, the comparison was made between components as cut, with tumbling, polishing, and with shot peening. For obtaining the properties, is this case the S N curve, an alternate bending fatigue machine was developed and used. Statistical methods were used in order to obtain the curve shape in medium cycle fatigue region, and a normal probability paper was used for determining the mean fatigue limit for infinite life for each condition tested. The low cycle fatigue region was not studied in detail. The results are presented in the form of S N curves for each condition tested, and comparisons are done with the purpose of knowing advantages in the application of one or another configuration in making prototype components for high performance and reliable equipments. At the end, a case study was performed, showing the applicability of the collected data, in the design of a real component used in a refrigeration machine. / O propósito deste trabalho é apresentar e discutir os resultados obtidos no estudo das propriedades de fadiga do material aço SAE 1075, laminado a frio, temperado e revenido, submetido a dois processos de corte diferentes, e com diferentes graus de acabamento superficial. Este material é muito utilizado em componentes com características elásticas como molas planas, e válvulas. Os processos de corte utilizados foram o corte a laser e por eletroerosão a fio, freqüentemente utilizados na obtenção de componentes para protótipos na indústria de máquinas e equipamentos. Quanto ao acabamento superficial, a comparação foi feita entre corpos de prova simplesmente cortados, com tamboreamento, com polimento e com shot peening . A obtenção das propriedades, no caso a curva S N, foi feita com a utilização de uma máquina de ensaio de fadiga por flexão alternada. Métodos estatísticos foram aplicados na determinação da inclinação das curvas na região de fadiga de médio ciclo, e um papel de probabilidade normal foi utilizado para determinação do limite de fadiga médio para vida infinita, para cada condição testada. A região de fadiga de baixo ciclo não foi investigada com detalhes. Os resultados são apresentados na forma de curvas S N, para cada condição, e comparações são feitas, no sentido de conhecer as vantagens da utilização de uma ou de outra condição, na obtenção de componentes protótipos para equipamentos de alta performance e confiabilidade. Por fim, um estudo de caso foi realizado, demonstrando a aplicabilidade dos dados obtidos no projeto de um componente real para uma máquina de refrigeração.

Orientador: Marcelo dos Santos Pereira / Banca: Humberto Lopes Rodrigues / Banca: Pedro Paulo de Campos / Resumo: Estudos de novos materiais, mais resistentes, econômicos e de menor densidade, são de grande interesse para aplicações estruturais em projetos de Engenharias. Propriedades mecânicas antes obtidas principalmente por meio de adição de elementos de ligas, como por exemplo elevada dureza, tenacidade e resistência mecânica, podem ser atingidas atualmente com variações no processamento térmico e termomecânico. Estas alterações têm proporcionado a formação de estruturas multifásicas nos aços, e como elemento deste estudo, os aços bifásicos. Neste trabalho, buscou-se entender os efeitos que processamentos térmicos possuem sobre as microestruturas dos aços de médio teor de carbono (SAE 1045), assim como a sua influência sobre as propriedades mecânicas, especialmente sobre a tenacidade, evidenciada por meio de ensaios de impacto. O material tratado termicamente obteve, sua estrutura transformada, visando à formação de estrutura bifásica (ferrita e martensita) e de estrutura formada por martensita revenida, sendo comparadas com a condição do material como fornecido (ferrita e perlita). A caracterização microestrutural foi realizada para determinação das fases presentes, assim como das frações volumétricas respectivas. Ensaios de tração e de impacto foram realizados visando a determinação das propriedades mecânicas do aço. Os resultados mostraram que a interação entre ferrita e martensita, gerada na condição bifásica, possue forte influência nos resultados referentes à tenacidade, assim como a temperatura em que o material foi ensaiado. Comparando-se três estruturas, comprova-se que a estrutura bifásica possui resistência mecânica e tenacidade mais elevadas que os aços temperados e revenidos, e tenacidade proxima a do aço com médio teor de carbono, sem tratamento térmico. / Abstract: Studies of new materials, more resistance, cheaper costs and lower density, have high interest for structural use in engineering projects. Mechanical properties adquired in the past by alloyes adition, for example igher hardness, toughness and mechanical strenght, nowadays can be reached using controlled thermo mechanical process. These changes have provided the multiphase structures formation in steels, for example the dual phase steel, subject of the present study. In this work it was researched the effects of heat process in microestructure of medium carbon steels (SAE 1045) and the influence over mechanical properties, specially in toughers, realized by impact analysis. The heat treatment material has its structure transformed in dual-phase structure (ferrite and martensite) and compared with supplied material (ferrite and perlite). The microestructural characterization was done to determine the present phase, and the respective volumetric fraction of martensite. Tension and impact analysis were done to determine the steel mechanical properties. Results have shown that the interaction between ferrite and martensite generated in dual-phase condition, has higher influence, related the materials toughness, so the temperature that material was analysed comparing the three structures, verifies that the dual-phase struture has level of mechanical resistence and toughness, higher than quenched and tempered steels, and toughness near of medium carbon steel that has not received heat treatment in higher or lower temperatures. / Mestre

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-02-05T22:23:13Z No. of bitstreams: 1 LeonardoResende_DISSERT.pdf: 7377959 bytes, checksum: 16ea1cdbf54927d2b45fc0aac9163621 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-02-16T00:06:40Z (GMT) No. of bitstreams: 1 LeonardoResende_DISSERT.pdf: 7377959 bytes, checksum: 16ea1cdbf54927d2b45fc0aac9163621 (MD5) / Made available in DSpace on 2016-02-16T00:06:40Z (GMT). No. of bitstreams: 1 LeonardoResende_DISSERT.pdf: 7377959 bytes, checksum: 16ea1cdbf54927d2b45fc0aac9163621 (MD5) Previous issue date: 2014-09-24 / Do ponto de vista econ?mico, a metalurgia do p? (MP) ? uma t?cnica bastante usada para a produ??o de pe?as de pequeno porte. ? poss?vel, atrav?s da MP e de uma pr?via cominui??o de res?duos s?lidos tais como cavacos ferrosos, produzir pe?as sinterizadas altamente densas e de interesse para a ind?stria automotiva, eletr?nica e aeroespacial. No entanto, sem essa pr?via cominui??o dos cavacos, a produ??o de corpos com densidade igual a densidade te?rica por t?cnicas convencionais de sinteriza??o necessitaria do uso de aditivos ou de temperaturas significativamente maiores do que 1250?C. Uma rota alternativa para a fabrica??o de corpos sinterizados com alta densidade a partir de compacta??o de cavacos ferrosos (? 850 ?m) e sinteriza??o em fase s?lida ? a t?cnica de compacta??o sob alta press?o (AP). Nesse trabalho, foram usadas diferentes press?es de compacta??o para a produ??o de sinterizados de cavacos de a?o carbono SAE 1050. Especificamente, foi investigado o efeito da alta press?o de compacta??o no comportamento da densifica??o das amostras sinterizadas. Portanto, amostras de cavacos do a?o carbono SAE 1050 foram compactadas uniaxialmente a frio sob press?es de 500 e 2000 MPa, respectivamente. Os corpos verdes obtidos foram sinterizados sob atmosfera carbonetante a 1100 e 1200?C por 90 minutos. A taxa de aquecimento usada foi de 20?C/min. Os materiais de partida e os corpos sinterizados foram caracterizados por microscopia ?ptica, MEV, DRX, medidas de densidade (geom?trica: massa/volume, e picnometria) e medidas de microdureza Vickers e dureza Rockwel. Os resultados obtidos mostraram que os compactos produzidos sob 2000 MPa apresentaram valores de densidade relativa de 93% a 100% da densidade te?rica e microdureza entre 150 HV e 180 HV, respectivamente. Diferentemente, os compactados sob 500 MPa apresentaram uma microestrutura bastante heterog?nea, valor de densidade abaixo de 80% da densidade te?rica e condi??es estruturais das amostras inadequadas para a realiza??o das medidas de microdureza e dureza. Os resultados obtidos indicam que utiliza??o da compacta??o sob alta press?o de cavacos ferrosos ? uma rota bastante promissora para melhorar as condi??es de sinterabilidade deste tipo de material, pois, al?m de promover uma maior compacta??o do material de partida, a tens?o externa atua, juntamente com a tens?o superficial, funcionando como for?a motriz para o processo de sinteriza??o. Adicionalmente, press?es extremamente elevadas permitem a deforma??o pl?stica dos materiais, promovendo um contato ?ntimo e extenso das part?culas e eliminando poros e trincas. Isso tende a diminuir o tempo e/ou a temperatura necess?rias para uma boa sinteriza??o, evitando-se o crescimento excessivo de gr?os, sem o uso de aditivos. Al?m disso, as press?es elevadas provocam fratura nos gr?os em materiais fr?geis ou d?cteis altamente encruados, o que propicia um p? de partida, para a sinteriza??o, mais fino, sem os riscos de contamina??o presentes quando s?o usados m?todos de cominui??o pr?via do p?. / From an economic standpoint, the powder metallurgy (P/M) is a technique widely used for the production of small parts. It is possible, through the P/M and prior comminution of solid waste such as ferrous chips, produce highly dense sintered parts and of interest to the automotive, electronics and aerospace industries. However, without prior comminution the chip, the production of bodies with a density equal to theoretical density by conventional sintering techniques require the use of additives or significantly higher temperatures than 1250?C. An alternative route to the production of sintered bodies with high density compaction from ferrous chips (? 850 microns) and solid phase sintering is a compression technique under high pressure (HP). In this work, different compaction pressures to produce a sintered chip of SAE 1050 carbon steel were used. Specifically, the objective was to investigate them, the effect of high pressure compression in the behavior of densification of the sintered samples. Therefore, samples of the chips from the SAE 1050 carbon steel were uniaxially cold compacted at 500 and 2000 MPa, respectively. The green compacts obtained were sintered under carbon atmosphere at 1100 and 1200?C for 90 minutes. The heating rate used was 20?C/min. The starting materials and the sintered bodies were characterized by optical microscopy, SEM, XRD, density measurements (geometric: mass/volume, and pycnometry) and microhardness measurements Vickers and Rockwell hardness. The results showed that the compact produced under 2000 MPa presented relative density values between 93% and 100% of theoretical density and microhardness between 150 HV and 180 HV, respectively. In contrast, compressed under 500 MPa showed a very heterogeneous microstructure, density value below 80% of theoretical density and structural conditions of inadequate specimens for carrying out the hardness and microhardness measurements. The results indicate that use of the high pressure of ferrous chips compression is a promising route to improve the sinterability conditions of this type of material, because in addition to promoting greater compression of the starting material, the external tension acts together with surface tension, functioning as the motive power for sintering process. Additionally, extremely high pressures allow plastic deformation of the material, providing an intimate and extended contact of the particles and eliminating cracks and pores. This tends to reduce the time and / or temperature required for good sintering, avoiding excessive grain growth without the use of additives. Moreover, higher pressures lead to fracture the grains in fragile or ductile materials highly hardened, which provides a starting powder for sintering, thinner, without the risk of contamination present when previous methods are used comminution of the powder.