Stamping
Mostrando 1-12 de 36 artigos, teses e dissertações.
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1. New Proposal to Calculate the Friction in Sheet Metal Forming Through Bending Under Tension Test
There are 6 different types of equations that have been formulated to measure friction through the bending under tension test, however, there is no work to show whether these calculations actually represent what is happening in a sheet metal stamping process. This paper aims to make a direct comparison between the bending under tension test and the sheet met
Mat. Res.. Publicado em: 20/01/2020
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2. Simulación computacional de un ensayo Erichsen aplicado a una chapa de acero DC-06
ABSTRACT Nowadays, the use of computer simulation on forming processes as stamping and its variants, is an habitual development activity of big industries, and also it is slowly being introduced in SME (Small and Mediumsize Enterprise). One of the main advantages of it is application lies-in the reduction of costs regarding new projects, products and process
Matéria (Rio J.). Publicado em: 19/07/2018
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3. Polystyrene and cornstarch anti-corrosive coatings on steel
Abstract This work aims to evaluate the performance of anticorrosive thermoplastic coatings in cold rolled steel sheets. Two types of thermoplastic coatings were studied: polystyrene (PS) and cornstarch. These types of coatings are applied for protection against corrosion during transport and storage of steel plates after cold rolling until delivery to stam
Polímeros. Publicado em: 10/07/2018
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4. Using Bio-Replicated Forming Technologies to Fabricate Shark-Skin Surface
ABSTRACT Shark-skin surfaces show the non-smoothness characteristics due to the presence of riblet structures. In this work, biomimetic shark-skins were prepared by means of different bio-replicated forming techniques. These techniques include the PDMS elastomeric stamping method (e.g., PES method) and the PDMS embedded-elastomeric stamping method (e.g., PEE
Braz. arch. biol. technol.. Publicado em: 14/06/2018
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5. Protic Ionic Liquids Used as Metal-Forming Green Lubricants for Aluminum: Effect of Anion Chain Length
Among the applications for protic ionic liquids (PILs), lubrication is one of the newest and the most promising. In this work, ammonium-based protic ionic liquids were tested as lubricant fluids for aluminum-steel contacts. PILs were synthesized with 2-hydroxyethylamine (2HEA) and a carboxylic acid (formic and pentanoic), aiming to understand the effect of t
Mat. Res.. Publicado em: 03/04/2017
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6. Experimental and computer thermodynamics evaluations of an Al-Si-Coating on a quenchable steel
Abstract High-strength steels are commonly used in the automobile industry in order to reduce the weight of the vehicles. However, a technical difficulty appears due to the need of hot stamping of the components, which leads to oxidation. Therefore, the application of a coating on the substrate to avoid high-temperature oxidation is used. In this work, exper
REM, Int. Eng. J.. Publicado em: 2017-03
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7. Effect of Necking Behavior and of Gap Size on the Cooling Rate in Hot Stamping
In this study, a tailored die quenching experimental method using low closing pressures and an aluminum flat die was developed in order to evaluate the effects of the gap size on the cooling rate in the hot stamping process of a 22MnB5 steel grade. Initially, the necking behavior in hot stamping was investigated by deforming the specimens to different strain
Mat. Res.. Publicado em: 29/08/2016
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8. 12 mm Thick Circular Blanks of Al-killed AISI 1020 Steel -Applied for Cylindrical Cup Manufacturing by Multistage Deep Drawing with Simultaneous Ironing
Abstract In this paper a new modified processing route has been proposed for producing long cylindrical cups from 12 mm thick circular blanks of AISI 1020 steel (Aluminium (Al) -killed). In this route, flat blanks were made to preformed shape by stamping operation, followed by multistage deep drawing processes(without blank-holder and with inter-stage stress
Mat. Res.. Publicado em: 21/07/2016
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9. Comportamiento Tribológico y Microestructural en Recubrimientos Aplicados por GTAW y HVOF (Proceso Térmico de Espreado) y Usado en Recuperación de Aceros Grado Herramienta AISI/SAE D2
Abstract The Fe-Cr-Mo alloys are use in covers to protect the components that are under wear and corrosion. The high velocity thermo spray covering by HVOF (high velocity oxi-fuel) in Fe-Cr-Mo alloys has reported as a good result in projection fields for the steel tool grade for cold work. The HOVF is an attractive method to apply covering and recuperate dia
Soldag. insp.. Publicado em: 2016-06
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10. NEW WAYS, OLD THEMES: CONNECTING HISTORY AND HERITAGE TO CREATE GRAPHIC PATTERNS TO PROMOTE SANTA MARIA / FORMAS NOVAS, TEMAS ANTIGOS: CONECTANDO HISTÓRIA E PATRIMÔNIO NA CRIAÇÃO DE PADRÕES GRÁFICOS PARA DIVULGAR SANTA MARIA
Preservation of Architectural Heritage listed on the Brazilian Register of Historic Sites an issue widely discussed nowadays presupposes questions which are not always addressed by professionals involved in the preservation field. One of these questions is raising funds for maintenance of such historic sites as well as approaching these constructions and the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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11. Craqueamento termo-catalítico da mistura óleo de fritura usado-lodo de estamparia têxtil para a produção de óleo com baixo índice de acidez
In this work, cracking experiments were performed to carry out the thermal conversion of the mixture of used frying oil and textile stamping sludge in continuous reactor. The textile stamping sludge was used to catalyze the reaction of thermal cracking. The physical and chemical properties of the oil produced were analyzed. Among the results of this analysis
Química Nova. Publicado em: 2012
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12. Estudo da análise de fadiga pelo MEF considerando os efeitos da estampagem / Study of fatigue analysis by FEM considering the metal stamping effects
As simulações dentro do ambiente de projeto devem prever a utilização de novas variáveis, especialmente de processos, de forma a aumentar a proximidade entre os modelos virtual e real e, com isso, aumentar a precisão das simulações. O objetivo deste trabalho foi o de estudar um modelo pelo Método dos Elementos Finitos que incluísse os efeitos da va
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/07/2011