A sustainable process for material removal on pure copper by use of extremophile bacteria

Díaz-Tena, E.; Rodríguez-Ezquerro, A.; Lacalle, Luís Norberto López de; Bustinduy, Luis Gurtubay; Saenz, Adrian

doi:10.1016/j.jclepro.2014.01.061

Cited by 56 publications

(18 citation statements)

References 29 publications

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“…The planning of the tool path is beneficial for minimizing dimensional errors [27], which determine the focusing properties and optical transfer function of optical components that directly affect the surface profile. Some other method, like the work on spherical lens in copper were approached by using bio-machining [28]. Also, custom-shaped milling tools [29], barrel end mills [30,31] and conical milling tools [32] are beneficial for the free-form machining with high accuracy and high efficiency requirement.…”

Section: Introductionmentioning

confidence: 99%

Pseudo-random Path Generation Algorithms and Strategies for the Surface Quality Improvement of Optical Aspherical Components

Zha

Zhang

et al. 2020

Materials

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This study proposes two path generation algorithms to diminish the superposition of the convolution effect on the polishing path in computer-controlled optical surfacing. According to the polishing of aluminum-alloy based hyperboloid optical components, different proportions of polishing agents were blended. Then, the surface roughness of the optical components were determined through a validation experiment of the algorithms. Furthermore, the relationship between surface roughness and the polishing agent concentration, and the compensation strategies for surface roughness were analyzed. The results show that the two algorithms effectively compensated for surface waviness. The findings support the strategies for improving the surface quality of optical components with aspherical surfaces.

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Section: Introductionmentioning

confidence: 99%

Pseudo-random Path Generation Algorithms and Strategies for the Surface Quality Improvement of Optical Aspherical Components

Zha

Zhang

et al. 2020

Materials

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“…The main characteristic of these fluids is their ability to change reversibly from free-flowing, linear viscous liquids, to semi-solids with the yield strength swiftly and continuously controllable (milliseconds scale dynamics) when exposed to magnetic field. In the absence of an applied field, the MR fluids exhibit Newtonian-like behavior [3,12]. Magnetic fluid, also called Ferro fluid, is a new-style magnetic material which property and morphology are varied with external magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on the Al 7075/ Zirconium Oxide , Graphite Composite Material for Moderate Temperature Applications

Durairaj¹,

Tjprc²

2019

IJMPERD

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Conventionally, two different liquids are used in automobile industries for lubrication and cooling purpose, and its property variations demand different handling systems (pump, storage tank, etc.). In this project, we propose to use single fluid for both lubrication and cooling purpose, which reduces the number of accessories and also promotes interchangeability. Magnetorheological fluid (MRF) is highly viscous in nature; generally viscous fluids are good in lubrication, but fail to provide required cooling effect because of its high kinematic viscosity, whereas, with the small influence of magnetic field intensity, magnetorheological fluid could act as a heat transfer fluid.

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“…Non-traditional engraving processes have been becoming a promising technology for micro-machining. New groups of unconventional engraving processes such as the sustainable biomachining of metals by using bacteria [ 1 , 2 , 3 ] and spark-assisted chemical engraving of non-conductive materials [ 4 ] can remove material from a workpiece without affecting the mechanical properties of the material due to the lack of machining forces produced in the process. Spark-assisted chemical engraving (SACE) is also known as electrochemical discharge machining (ECDM) and is a non-traditional machining process that is advantageous for machining non-conducting [ 5 ], hard and brittle materials with low residual stress to produce micron-sized holes.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the Arcing Plasma Formation Effect in Spark-Assisted Chemical Engraving of Glass, Based on Machine Vision

2018

Materials

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Spark-assisted chemical engraving (SACE) is a non-traditional machining technology that is used to machine electrically non-conducting materials including glass, ceramics, and quartz. The processing accuracy, machining efficiency, and reproducibility are the key factors in the SACE process. In the present study, a machine vision method is applied to monitor and estimate the status of a SACE-drilled hole in quartz glass. During the machining of quartz glass, the spring-fed tool electrode was pre-pressured on the quartz glass surface to feed the electrode that was in contact with the machining surface of the quartz glass. In situ image acquisition and analysis of the SACE drilling processes were used to analyze the captured image of the state of the spark discharge at the tip and sidewall of the electrode. The results indicated an association between the accumulative size of the SACE-induced spark area and deepness of the hole. The results indicated that the evaluated depths of the SACE-machined holes were a proportional function of the accumulative spark size with a high degree of correlation. The study proposes an innovative computer vision-based method to estimate the deepness and status of SACE-drilled holes in real time.

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A sustainable process for material removal on pure copper by use of extremophile bacteria

Cited by 56 publications

References 29 publications

Pseudo-random Path Generation Algorithms and Strategies for the Surface Quality Improvement of Optical Aspherical Components

Pseudo-random Path Generation Algorithms and Strategies for the Surface Quality Improvement of Optical Aspherical Components

Experimental Investigation on the Al 7075/ Zirconium Oxide , Graphite Composite Material for Moderate Temperature Applications

Characteristics of the Arcing Plasma Formation Effect in Spark-Assisted Chemical Engraving of Glass, Based on Machine Vision

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