Tooling
Mostrando 1-12 de 23 artigos, teses e dissertações.
-
1. Effect of surface roughness and lubrication on the friction coefficient in deep drawing processes of aluminum alloy aa1100 with fem analysis
ABSTRACT Friction between the interface workpiece and tooling has considerable importance in sheet metal forming operations; an accurate description of the friction is necessary to analyze and design new workpieces and tooling. This work suggests a methodology to determine and evaluate the mean coefficient of friction (COF) using the Finite Element Method (F
Matéria (Rio J.). Publicado em: 16/09/2019
-
2. Effect of surface roughness and lubrication on the friction coefficient in deep drawing processes of aluminum alloy aa1100 with fem analysis 1
ABSTRACT Friction between the interface workpiece and tooling has considerable importance in sheet metal forming operations; an accurate description of the friction is necessary to analyze and design new workpieces and tooling. This work suggests a methodology to determine and evaluate the mean coefficient of friction (COF) using the Finite Element Method (F
Matéria (Rio J.). Publicado em: 20/05/2019
-
3. Simulação computacional, projeto, construção e análise do desempenho de uma matriz para extrusão em canal angular dedicada ao processamento de chapas / Computational simulation, design, construction and performance analysis of an equal channel angular pressing die for the processing of flat billets
The present work describes the design, construction and testing of an equal channel angular pressing (ECAP) die characterized by rectangular cross section channels. The main parameter of the ECAP dies is the geometry of the channels, given by the angle trough which they meet, and the curvature radii at this point. The material employed in the experiments was
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/08/2012
-
4. Creep-age forming of AA7475 aluminum panels for aircraft lower wing skin application
Creep-age forming (CAF) is an interesting process for the airframe industry, as it is able to form or shape panels into smooth, but complex, curvatures. In the CAF process, the ageing cycle of the alloy is used to relax external loads imposed to the part, through creep mechanisms. Those relaxed stresses impose a new curvature to the part. At the end of the p
Materials Research. Publicado em: 17/07/2012
-
5. Estudo de técnicas conceituais de recapeamento de quadril de cães / Study of conceptual techniques for dogs hip resurfacing
The study conceptually describes a surgical model for dog hip resurfacing technique. Hip arthroplasty was developed to restore joint mobility and relieve of human patients pain. In animals, especially dogs, total arthroplasty is a surgical procedure commonly used to correct traumatic, degenerative and inflammatory hip diseases and alleviate pain. The resurfa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2011
-
6. Improvement of Soft Tooling Process Through Particle Reinforcement with Polyurethane Mould
Use of conventional flexible polymeric mould materials yields to longer solidification time of (wax/plastic) patterns in soft tooling process, thereby reducing the rapidity of the process to a great extent, which is not desirable in present competitive market. In this work, approach of particle-reinforcement with mould materials is introduced to reduce the c
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-09
-
7. Decision support method to apply Additive Manufacturing Technologies for plastic components in the aircraft industry
Additive Manufacturing Technologies (AMT) are a collection of manufacturing processes driven by CAD data to produce physical models and parts by means of additive techniques. They are based on a layer-by-layer material consolidation process instead of the traditional methods. Due to machine and material developments, such processes may be used to produce fin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/11/2009
-
8. A contribution to the study on cold forging of steel helical gears / Uma contribuição ao estudo do forjamento a frio de engrenagens helicoidais
The forging processes are classified in hot forging, warm forging, and cold forging, that usually provide products that need some further machining operations to achieve manufactured part specifications. Cold forging asks for a special attention when manufacturing complex geometry parts, because its limitation with the forgeability of the workpiece material,
Publicado em: 2009
-
9. Development of extruded profiles from high density polyethylene and wood flour composites / Desenvolvimento de perfis extrudados de compósitos de polietileno de alta densidade com farinha de madeira
Polymer profiles extrusion shows some peculiarity due to the flow behavior of these materials during the processing. On the other hand, the profile die design and tooling has been more a result of professionals expertise than an engineering project in essence. In the present work, it was aimed to combining concepts of computers aided engineering to rheologic
Publicado em: 2009
-
10. Rapid manufacturing and rapid tooling of polymer miniaturized parts using Stereolithography
Currently, miniaturization is a major trend in the manufacturing and commercialization of new industrial products. When small-sized objects should be manufactured with dimensions of only a few millimeters or less, many difficulties can appear using traditional processes. An alternative to study these new requirements is through the use of rapid prototyping t
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-03
-
11. Risco e confiabilidade sobre estruturas combinatÃrias : uma modelagem para redes elÃtricas
Reability of an component is the probability that it perform its functions under specific conditions. Unlike the concept of reliability is the concept of risk, which is defined as the probability of failure versus the cost associating with such failure. Mathematical models are often used in engineering projects and the analysis of reliability, robustness and
Publicado em: 2008
-
12. The behavior of graphite and copper electrodes on the finish die-sinking electrical discharge machining (EDM) of AISI P20 tool steel
The machining parameter settings installed at CNC EDM machines are developed under optimum process conditions. Standard workpiece and electrode materials are used traditionally by machine manufacturers to establish the EDM parameter settings. However, this is not the usual situation of the tooling industry, where many different grades of workpiece and tool e
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-12