نتایج جستجو برای: minimum chip thickness
تعداد نتایج: 321100 فیلتر نتایج به سال:
In the fabrication process of thin-walled micro-parts, both micro-cutting tools and micro-parts have characteristics small size low stiffness. Therefore, regenerative chatter during machining cannot be ignored. The influence tool runout error actual trochoidal trajectories cutting edge on micro-milling forces should also considered comprehensively. this paper, in is first analysed, an instantan...
This paper addresses problems of predicting chip formation in high strain machining conditions. A complete physical model requires both plasticity and chip/tool friction models. Friction models are commonly partly phenomenological, with coefficients measured from the conditions which applied. paper's thesis is that emerges plastic response material contact cutting tool. Extremely large strains ...
The Ni-base single crystal superalloy DD5 is commonly employed in critical parts of turbine blades and disks aeronautical engines. To improve the surface machining quality, single-factor experiments were carried out to investigate changes grinding force, morphology, chip morphology under different conditions (dry, conventional flood, minimum quantity lubrication). showed that flood lubrication ...
To enhance SNR performance by reducing crosstalk in backside illumination (BSI) pixel structure of CMOS image sensor, a new process technology, named as ‘lensed color filter’, was developed. Effective color filter thickness is increased while optical height is lower than conventional structure. The real chip with 1.12um pixels and 12Mega resolution was manufactured. It has 25% higher color filt...
A novel method using luminescent molecule sensors is described for in situ measurement of fluid film thickness along the tool rake face in machining. The method uses an optically transparent sapphire tool to access the rake face, and measurement of radiation emitted by luminescing molecules dispersed in a machining fluid. By measuring the intensity of the emission, the film thickness is estimat...
The purpose is to assess the diagnostic ability for early glaucoma of macular ganglion cell-inner plexiform layer (GCIPL) thickness in a Chinese population including glaucoma suspects.A total of 367 eyes with primary open-angle glaucoma (168 early glaucoma, 78 moderate glaucoma, and 121 advanced glaucoma), 52 eyes with ocular hypertension (OHT), 59 eyes with enlarged cup-to-disc ratio (C/D), an...
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