Results 251 to 260 of about 4,784,113 (302)
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Surface integrity of machined surfaces
2010This chqapter presents the basic knowledge on surface integrity in traditional and non-traditional machining processes. An extended overview of fundemantal characteristics of surface finishes and surface integrity including surface roughness/surface topography, specific matallurgical and microstructure alternations and process-induced residual stresses
Grzesik, Wit +2 more
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Effects of machining parameters on surface integrity of hard machined surfaces
Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 2009This study investigates the effects of machining parameters on the surface integrity of hard machined surfaces. The residual stress distribution of hard machined surfaces is characterized by compressive stresses in the range between 150 and 1000 MPa. Typically, residual stresses in the feed direction are more compressive above a depth of 12.7 μm, while
Y Choi, C R Liu
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Molecular Machines Working on Surfaces and at Interfaces
ChemPhysChem, 2008AbstractIn the past ten years a great variety of artificial molecular machines have been constructed, and very interesting concepts for controlling molecular‐level movements by external inputs have been developed. Most of the studies, however, have been performed in solution, where the investigated systems contain a huge number of molecules which ...
BALZANI, VINCENZO +2 more
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2008
This chapter is related to the machining of complex surfaces, ruled or sculptured, which is very common for forge and stamping dies, injection moulds and aeroengine components. Difficult-to-cut materials and complex part geometry are the two factors involved.
L. Norberto López de Lacalle +1 more
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This chapter is related to the machining of complex surfaces, ruled or sculptured, which is very common for forge and stamping dies, injection moulds and aeroengine components. Difficult-to-cut materials and complex part geometry are the two factors involved.
L. Norberto López de Lacalle +1 more
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Surface Finish and Surface Integrity in Machining
1998Abstract Both surface finish and surface integrity must be defined, measured, and maintained within specified limits in the processing of any product. Surface texture is defined in terms of roughness, waviness, lay, and flaws. This article illustrates some of the designations of surface roughness and the symbols for defining lay and its ...
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Aircraft Engineering and Aerospace Technology, 1992
FRICTION surfacing, a process for applying extremely hard coatings on to steel, is now available on a large commercial scale, following the completion of the world's first purpose‐built friction surfacing machine. The machine was demonstrated for the first time at an open day in Doncaster recently.
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FRICTION surfacing, a process for applying extremely hard coatings on to steel, is now available on a large commercial scale, following the completion of the world's first purpose‐built friction surfacing machine. The machine was demonstrated for the first time at an open day in Doncaster recently.
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Machine vision assisted characterization of machined surfaces
International Journal of Production Research, 2001This paper demonstrates the feasibility of using an inexpensive machine vision system to compute non-contact, optical parameters for the characterization of surface roughness of machined surfaces. Two parameters were selected for online analysis, where surface roughness is measured during the rotation of a specimen on a lathe.
Manoj Gupta, Shivakumar Raman
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Multiple-axis sculptured surface machining
International Journal of Manufacturing Research, 2006This paper presents swept envelope techniques to generate optimal tool paths for multiple-axis sculptured surface machining. The properties of the swept envelopes are analysed. The results help us to realise the geometric matching in tool-tip machining and understand the geometric machinability in tool-side machining. The target surfaces are classified
John C. J. Chiou, Yuan-Shin Lee
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2002
Up to now, the discussion in the text has been principally concerned with the surface topography, or roundness of components. This topographical information is valid but disguises the fact that the subsurface material layers may have been fundamentally altered during the production process by either forming or generating the part.
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Up to now, the discussion in the text has been principally concerned with the surface topography, or roundness of components. This topographical information is valid but disguises the fact that the subsurface material layers may have been fundamentally altered during the production process by either forming or generating the part.
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Feature-based surface design and machining
IEEE Computer Graphics and Applications, 1992A feature-based method for designing and representing functional surfaces such as automobile inner panels that lets a user assemble and present complicated, multifeatured surfaces using known, generally simpler component surfaces and information about feature shape is reviewed.
James C. Cavendish, Samuel P. Marin
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