Cutting Force
Mostrando 13-24 de 56 artigos, teses e dissertações.
-
13. Propagação vegetativa do jequitibá-rosa (Cariniana estrellensis (Raddi) Kuntze) e do pau-jacaré (Piptadenia gonoacantha (Mart.) Macbr.) por estaquia / Propagation vegetative of jequitibá-rosa (Cariniana estrellensis (Raddi) Kuntze) and of pau-jacaré (Piptadenia gonoacantha (Mart.) Macbr.) for cutting
The jequitibá-rosa (Cariniana estrellensis (Raddi) Kuntze) and the pau-jacaré (Piptadenia gonoacantha (Mart.) Macbr.) are native species with great potential of utilization for use by the forest sector brazilian, which are distinguished by the diversity of uses for their wood. Currently, these species have the seeds as the main form of propagation in the p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2011
-
14. Otimização do corte de pontas de um aço livre de intersticiais laminado a quente usando tesoura do tipo guilhotina / Optimization the cut edge of a hot rolled interstitial free steel using a guillotine type shearing machine
The automotive industry\ s demand for high formability steels for use in exposed body panels motivated the development of several interstitial free (IF) steels specifications at Companhia Siderurgica Nacional. The \"IF-Ti\" steel specification belongs to the special deep drawing steels group (CSN EEP-IF), with yield strength <380 MPa, and among all grades of
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/02/2011
-
15. Finite element simulations of Ti6Al4V titanium alloy machining to assess material model parameters of the Johnson-Cook constitutive equation
The machining of titanium alloys poses several inherent difficulties owing to their unique mechanical properties and cutting characteristics. Finite element (FE) simulations have reduced the burden of extensive experimental trials in understanding the deformation behavior and optimize the cutting process. The FE code relies on the qualitative nature of input
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-06
-
16. Influence of optimized lubrication-cooling and minimum quantity lubrication on the cutting forces, on the geometric quality of the surfaces and on the micro-structural integrity of hardened steel parts
The is paper presents an analysis of the influence of minimum quantity lubrication (MQL), optimized and conventional cooling, using different cutting fluid volumes and flow rates, on the surface quality and integrity of hardened steel workpieces, in cylindrical plunge grinding with superabrasive CBN grinding wheels. The final quality of the workpieces were e
Matéria (Rio de Janeiro). Publicado em: 2011
-
17. Estudo dos esforços de corte no processo HSM aplicado à abertura de cavidades / Study of the cutting forces in HSM process applied to pocket milling
The manufacturing of a great number of components in the industry depends on molds and dies used in processes like forging, powder metallurgy, deep drawing, casting and plastic injection. One of the main operations for manufacturing of these parts corresponds to the opening of the initial pocket, from which more complex geometries are machined in order to ob
Publicado em: 2010
-
18. Improvement of the productivity in getting holes in aviation aluminum alloys with high speed tools / Melhoria da produtividade na obtenção de furos em liga de aluminio aeronautico com ferramentas de aço rapido
The purpose of this study is to optimize the manufacturing process of holes made by Company X in one of their products. Besides the optimization, should be maintained the dimensional quality by controlling the diameter, roundness, circularity, and surface finish of cylindrical holes obtained by the widening process, with high-speed steel reamers in a aluminu
Publicado em: 2010
-
19. Taguchi's technique in machining of metal matrix composites
This paper presents the study on Taguchi's optimization methodology, which is applied to optimize cutting parameters in turning of age hardened Al6061-15% vol. SiC 25 µm particle size metal matrix composites with Cubic boron nitride inserts (CBN) KB-90 grade using steam as cutting fluid. Analysis of variance (ANOVA) is used to study the effect of process pa
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-03
-
20. Uma contribuição para o estudo das deformações residuais proporcionadas pelo processo de usinagem por fresamento. / A contribution for residual deformation study originated by the face milling machining process.
The face milling operation purpose is providing flat machined surfaces free from residual strains at the cross section of the workpiece. On the other hand, the evidences presented in this thesis are enough to demonstrate that the strain exists and its behavior can be related to technical measurements such as the cutting tool helical profile, the feed rate, t
Publicado em: 2009
-
21. Life Twist Drills Used in Implantodology and Influence of the Cutting Conditions / Determinação da vida de brocas utilizadas em implantodontia e influência das condições de corte
O objetivo deste trabalho é determinar a vida de brocas para implantodontia através de furação em tíbia bovina e estudar a influência das condições de corte utilizadas. As variáveis de entrada do trabalho foram o material de ferramenta, a velocidade de avanço e a rotação. E as variáveis de saída monitoradas foram o número de furos realizados,
Publicado em: 2009
-
22. Processos litográficos em filmes epitaxiais de compostos IV-VI para medidas Hall e o estudo da dopagem do telureto de chumbo com flureto de bário / Lithographic processes in epitaxial films of IV-VI compounds for Hall measurements and the study of lead telluride doping with barium flouride
The first part of the work dealt with the application of lithographical techniques to fabricate Hall geometry of IV-VI films grown on (111) BaF_2 substrates. A previous study of In diffusion in PbTe films confirmed the viability of using In as a metallic contact. During the lithographic process, some solutions were implemented to resolve the problems generat
Publicado em: 2009
-
23. Surface topography assessment techniques based on an in-process monitoring approach of tool wear and cutting force signature
One of the most influential sources in machining affecting surface roughness is the instantaneous state of tool edge. The main objective of the current work is to relate the in-process immeasurable cutting edge deformation and surface roughness to a more reliable easy-to-measure force signals using a robust non-linear time-dependent modeling regression techn
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-09
-
24. Performance profiling of boric acid as lubricant in machining
Turning is a widely used metal removal process in manufacturing industry that involves generation of high cutting forces and temperature. Lubrication becomes critical to minimize the effects of these forces and temperature on cutting tool and workpiece. The conventional cutting fluids employed in machining have certain limitations with regard to their use fo
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-09