Cold Working
Mostrando 1-12 de 52 artigos, teses e dissertações.
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1. Effect of cold-working process on cyclic deformation of electrolytic copper
Abstract Cyclic softening and hardening processes are expressed by the change in the stress amplitude necessary to cause a given strain amplitude. Understanding the cyclic stress-strain behavior of materials is an important step in the complex study of their fatigue behavior. The potential differences between the defect structures of cold-formed materials ma
REM, Int. Eng. J.. Publicado em: 19/06/2019
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2. Acondicionamiento del gas inhalado en pacientes con vía aérea artificial. Revisión narrativa
ABSTRACT Instrumentation of the airways in critical patients (endotracheal tube or tracheostomy cannula) prevents them from performing their function of humidify and heating the inhaled gas. In addition, the administration of cold and dry medical gases and the high flows that patients experience during invasive and non-invasive mechanical ventilation generat
Rev. bras. ter. intensiva. Publicado em: 2018-03
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3. Controlling Wettability of the Each Side of the PLA Fabric through Orientation of the Working Gases (O2 and CH4) During Cold Plasma Treatment
This study aimed to obtain a bifunctional fabric from the point of view of hydrophilicity/hydrophobicity for biomedical applications. To achieve this, both sides of a fabric of polylactic acid (PLA) were subjected to a plasma treatment. While in a side the oxygen was introduced to the other side, simultaneously, was added methane. The plasma treatment was pe
Mat. Res.. Publicado em: 21/11/2017
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4. Recrystallization of a Ti-45Ni-5Cu cold-worked shape memory alloy characterized by thermoelectric power and electrical properties
The recrystallization of a cold-worked shape memory alloy (SMA) without R-phase transition, i.e. the Ti-45.0Ni-5.0Cu (% at.), has been studied by thermoelectric power (TEP) technique and electrical resistivity change (Dρ) on several heat treated samples after cold working. This study was also supported by differential scanning calorimetry (DSC), transmissio
Mat. Res.. Publicado em: 01/08/2014
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5. Passagens / Passagens
Passages refers to transition, displacement, change, transmission and continuity. Perception of the body as a whole in the action of making; the movement and its resonances in connection with breathing and how this is transmitted in modeling the pieces. If passages here means relating differences, something that occurs somewhere between the being and the mat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/05/2011
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6. O(s) obscuro(s) dizer(es) de mães sobre o autismo de seus filhos
Listening to the mothers of autistic children is the aim of this work in order to look, at the materiality of these discourses, new senses and meanings to the pathology of autism and the (non) place given to mothers at the scientific universe. Through interviews, we undertook an interpretive gesture of the subjectsdiscoursive singularity using as theoretical
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2011
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7. Workability studies on cold upsetting of sintered copper alloy preforms
The major concern of the design for manufacturability is to accomplish the require deformation without failure of work material. The degree of deformation that can be achieved in a particular metal forming process without creating condition is termed as workability. The present investigation pertains to study the cold workability behaviour of Cu-7%Al-1.8%Si
Materials Research. Publicado em: 2010-12
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8. Modeling of work hardening behaviour of high Mn and low C polycristalline austenitic steel with twip effect
The steel of this work, 0.06C-25Mn-3Al-2Si-1Ni steel, presenting TWIP effect, was hot and cold rolled and then annealed at temperatures between 600 and 850ºC. The microstructure examination was focused in the recrystallization during annealing for different temperatures through optical and scanning electron microscopy. The volume fraction and recrystallized
Matéria (Rio de Janeiro). Publicado em: 2010
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9. A pulsão de saber do expert
This research aimed at investigating, from a psychoanalytic perspective, the features of expertsdrive for knowledge and its relationship with affective aspects built up during their lives. Particularly, it was identified their own perceptions about their drive for knowledge, as well as their families role in it. Besides, it was explored the features of the p
Publicado em: 2010
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10. Estudo comparativo da estampabilidade da liga de aluminio AA1050 partindo de placas obtidas por vazamento direto e bobinas obtidas por vazamento contínuo. / Comparative study of the deep drawing alloy AA1050 from plates obtained by direct casting and coils obtained by continuos casting.
Stampability of aluminum alloys is a subject of interest to several industrial sectors because they are largely used in the fabrication of several parts and components. The choice is based upon the stampability and the relative manufacturing capability in relation to other aluminum alloys that contain larger amounts of alloying elements and, consequently, hi
Publicado em: 2010
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11. Effect of immediate and delayed post space preparation on the apical seal of root canals obturated with different sealers and techniques
During mechanical preparation of the post space, the root canal filling may be twisted or vibrated, depending on several factors associated with the preparation technique and quality of filling. OBJECTIVE: The purpose of this study was to investigate the effect of immediate and delayed post space preparation on the integrity of the apical seal. MATERIAL AND
Journal of Applied Oral Science. Publicado em: 2009-12
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12. Model to characterize susceptibility to distortions by welding in aluminum plates / Proposta de modelo para caracterizar susceptibilidade a distorção devido a soldagem em chapas de aluminio
The industry interest on having a better control in the distortions provoked by welding of aluminum plates, caused by the crescent demand of this material, motivated the development of this work. In this work, it is studied the deformation caused by TIG welding in aluminum plates, alloy Al 5052, in function of the cold working degree (tempers) on the plates
Publicado em: 2009