Results 291 to 300 of about 3,143,235 (349)
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Deformation and material removal rate in polishing silicon wafers
Journal of Materials Processing Technology, 2003Abstract The aim of the present work was to explore the deformation mechanism and to estimate the material removal rate (MRR) in polishing silicon wafers. The surface roughness was studied by atomic force microscope and subsurface damage was assessed by means of cross-section transmission electron microscopy.
I. Zarudi, B.S. Han
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Measurement, 2018
Minimum quantity lubrication (MQL) is adorned with improved machining performance and environmental sustainability. In this context, this paper presents the study of roughness parameters (Ra, Rq, Rz), tool wear parameters (VB, VS) and material removal ...
Mozammel Mia +6 more
semanticscholar +1 more source
Minimum quantity lubrication (MQL) is adorned with improved machining performance and environmental sustainability. In this context, this paper presents the study of roughness parameters (Ra, Rq, Rz), tool wear parameters (VB, VS) and material removal ...
Mozammel Mia +6 more
semanticscholar +1 more source
Machineability in NURBS interpolator considering constant material removal rate
International Journal of Machine Tools and Manufacture, 2005Increasing demands on precision machining of three-dimensional free-form surfaces have necessitated that the tool move smoothly and at varying feedrates. To achieve this, parametric interpolators, such as the Non-Uniform Rational B-Spline (NURBS) interpolator, have been introduced in CNC machining systems.
Tae Jo Ko, Hee Sool Kim, Sung Ho Park
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Measurement, 2019
The research work dealt with measurement and analysis of the effects of cutting conditions include Spindle speed (n), Feed rate (f) and Depth of Cut (ap) on Arithmetic Average Surface Roughness (Ra) and Material Removal Rate (MRR) in micro turning ...
S. Kumar
semanticscholar +1 more source
The research work dealt with measurement and analysis of the effects of cutting conditions include Spindle speed (n), Feed rate (f) and Depth of Cut (ap) on Arithmetic Average Surface Roughness (Ra) and Material Removal Rate (MRR) in micro turning ...
S. Kumar
semanticscholar +1 more source
Specific Material Removal Rate Calculation in Five-Axis Grinding
Journal of Manufacturing Science and Engineering, 2017Specific material removal rate (MRR) q′ was calculated for five-axis grinding in a virtual machining simulation environment (VMSE). The axis-symmetric tool rotational profile was arc-length parameterized. The twisted grazing curve due to the concurrent translation and rotation in every move was modeled through an exact velocity field and areal MRR ...
Raja Kountanya, Changsheng Guo
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Precision Measurements Of Material-Removal Rates In Superpolishing Sapphire
SPIE Proceedings, 1989As we demonstrate, sapphire can be polished by means of colloidal SiO2 (7 nmφ) in water by direct contact to a tin lap to a residual roughness better than 0.3 nm Rz measured with a Talystep profilometer. We use the superpolishing mechanism itself for producing microscopically smooth grooves which can serve for a precision measurement of the very small ...
B. Hader, O. Weis
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Enhancement of material removal rate in EDM process using silicon carbide based strenx 900 steel
, 2020Material removal rate (MRR) plays an important role in metal industries. Its mainly depends on hardness, strength and toughness of the material. Light hardness materials are easily machined by conventional machining processes. High hardness materials are
S. Marichamy +5 more
semanticscholar +1 more source
SPIE Proceedings, 2015
Fiber arrays are used to connect arrayed waveguide chips. The end-faces of fiber array components are multi-materials non-uniform surfaces. Their low polishing quality has become a bottleneck that restricts coupling performance of integrated photo-electronic devices.
Defu Liu, Guanglin Chen, Qing Hu
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Fiber arrays are used to connect arrayed waveguide chips. The end-faces of fiber array components are multi-materials non-uniform surfaces. Their low polishing quality has become a bottleneck that restricts coupling performance of integrated photo-electronic devices.
Defu Liu, Guanglin Chen, Qing Hu
openaire +1 more source
Interfacial plasticity controls material removal rate during adhesive sliding contact
Physical Review Materials, 2020Adhesive wear is a result of material exchange due to localized adhesive bonding between surface asperities at small scales. It has been recently debated whether a linear wear relation can be observed at the single-asperity level. Using large-scale atomistic simulations, we show that the wear relation is a direct result of the material removal ...
Kai Zhao, Ramin Aghababaei
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International journal of machine tools & manufacture, 2019
The high flexibility of thin-walled structures makes their machining process prone to chatter and excessive vibrations. This challenge is compounded by the continuous varying dynamics of the workpiece as material is removed from the workpiece.
Kasper Ringgaard +4 more
semanticscholar +1 more source
The high flexibility of thin-walled structures makes their machining process prone to chatter and excessive vibrations. This challenge is compounded by the continuous varying dynamics of the workpiece as material is removed from the workpiece.
Kasper Ringgaard +4 more
semanticscholar +1 more source