Grinding process for profiled texturing

Silva, Eraldo Jannone da; Bottene, Alex Camilli; Oliveira, João Fernando Gomes de; Atoatte, Almir; Rodrigues, Alex Souza

doi:10.1016/j.cirp.2016.04.116

Cited by 19 publications

(8 citation statements)

References 6 publications

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“…With such a method, they create a texture of square-shaped pockets with side of 1.5 mm. Silva et al [33] further used the same dressing system and AE mapping technique to produce profiled workpiece surface patterns. The dressing tool they used was a square-shaped singlepoint diamond of section size 0.6 mm × 0.6 mm.…”

Section: Texturing Methodsmentioning

confidence: 99%

Dressing strategy and grinding control for cylindrical microstructural surface

Cao

Chen

2018

Int J Adv Manuf Technol

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Surface structural texture is designed to achieve specific functional performance for many advanced applications. After a brief review of current manufacturing methods for textural surface, this paper focuses on the study of microstructural surface creation by grinding. The axial and peripheral cross-sections of textured wheels under different dressing overlap ratios U d are illustrated. A set of microstructural texturing models are proposed and the influences of dressing and grinding parameters are discussed. The texture formation is analysed in considering each cutting point in grinding kinematic movement. A significant effect of the grinding contact length on the texture formation is noticed, which defines a texture pattern limitation for grinding to manipulate. Typical surface texture characteristics are introduced to assess the structural surface features and the corresponding theoretical models are validated by experimental results. The relationships between the textural gouge size and the kinematic conditions of dressing and grinding have been delineated for the guidance of grinding texturing strategy. The component waviness on textured components clearly shows the importance of rotational ratio on the layout of microstructural texture. The paper lays down an important foundation for surface microstructural texturing by grinding.

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Section: Texturing Methodsmentioning

confidence: 99%

Dressing strategy and grinding control for cylindrical microstructural surface

Cao

Chen

2018

Int J Adv Manuf Technol

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“…O critério de projeto para produzir microrampas com proporção 1:5 foi simulado utilizando uma versão adaptada do software de simulação apresentado no trabalho de Silva et al (2016) O modelo dinâmico com disco dressador foi simulado e comparado à medição do perfil circular da textura de proporção 1:5, como mostrado na Figura 5.4.…”

Section: Proporção Da Microrampaunclassified

“…A relação de velocidade de rotação entre rebolo e peça ( ) vale 20, ou seja, para cada volta completa da peça, o rebolo efetua 20 voltas.Isso significa que todo padrão existente no rebolo será replicado 20 vezes na peça. Há também uma comparação da medição de peças texturizadas com predições feitas pelo software de simulação de texturas desenvolvido pelo grupo de pesquisa em Funcionalização de Superfícies(SILVA et al, 2016). Esse simulador foi modificado para incorporar as restrições da cinemática de contato entre disco dressador e rebolo(SILVA et al, 2018).…”

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“…Por conta das dificuldades destacadas, a utilização da resina foi descartada. A medição da profundidade dos padrões geométricos no rebolo com o auxílio do mapa de EA, poderia ser uma estratégia viável para a inspeção da profundidade, como utilizado porSilva et al (2016), quando da utilização de um sistema de dressagem com dressador tipo ponta única. Todavia, para o caso do rebolo de CBN vitrificado e dressador rotativo, o mapa de emissão acústica não proveu informações confiáveis.…”

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“…Fonte:(SILVA et al, 2018), adaptado pelo autor Silva et al (2016). mostra que o arredondamento só aparece quando a textura é transferida para a peça, pois é o único momento em que o contato é uma intersecção de dois círculos, já que o dressador utilizado naquela pesquisa era de ponta única(Figura 5.3).…”

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Desenvolvimento de um sistema de texturização para rebolos de CBN vitrificado baseado em análise modal

Marcos¹

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Engineered surfaces rely on the control of the surface characteristics of a material to achieve a desired functional performance. These functional surfaces are important in several areas of engineering, such as: electronics, optics, energy and tribology. On tribology field, an application is in crankshafts. The surface functionalization is achieved by adding micro-cavities that reduce friction and increase crankshaft lift forces. These cavities have a specific geometry, called microramp. Due to this special geometry, manufacturing microramps is a complex process, having been achieved using the methodology of texturizing via grinding. This methodology consists in the inscription of geometric patterns in the grinding wheel during the dressing operation, later transferred to the piece. As the modern industry uses vitrified CBN grinding wheels for crankshaft grinding, the texturing methodology should be applicable to this tool. This work describes the development of a dressing unit capable of inscribing geometric patterns in vitrified CBN grinding wheels, having its design based on modal analysis. The work presents the design constraints, solution concepts, dynamic simulations and modeling of the texturing process. To maximize dynamic response, the unit is designed to operate near its natural frequency. The designed unit can inscribe geometric patterns on the grinding wheel using a rotating dressing disc, and the textures of the parts produced have good geometric precision for crankshaft applications.

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