Pub Date : 2016-01-01DOI: 10.1504/IJAT.2016.10002370
Chen Li, F. Dong, Jun Zhao
To improve mould structural surface quality, the softness abrasive flow (SAF) finishing method is proposed. By setting restrained component to the mould surface, restrained flow passage can be set up. In the flow passage, micro force and quantity cutting for the tiny scale structural surface is realised by using the turbulence wall effect of SAF. Dynamical model of SAF is established based on liquid-solid two-phase flow coupling theory. Semi-annular flow passage is taken as the research object, and turbulent parameters with different flow passages are analysed by using standard k-e turbulent model and discrete phase model (DPM), which is used for describing the influence to turbulent state caused by different boundary conditions, meanwhile, the optimisation design of finishing parameters can be obtained. Finishing platform is constructed, and finishing experiment results show that with the SAF method, the roughness machined is less than Ra 62 nm.
{"title":"Study on turbulence control method and surface quality analysis of softness abrasive flow machining","authors":"Chen Li, F. Dong, Jun Zhao","doi":"10.1504/IJAT.2016.10002370","DOIUrl":"https://doi.org/10.1504/IJAT.2016.10002370","url":null,"abstract":"To improve mould structural surface quality, the softness abrasive flow (SAF) finishing method is proposed. By setting restrained component to the mould surface, restrained flow passage can be set up. In the flow passage, micro force and quantity cutting for the tiny scale structural surface is realised by using the turbulence wall effect of SAF. Dynamical model of SAF is established based on liquid-solid two-phase flow coupling theory. Semi-annular flow passage is taken as the research object, and turbulent parameters with different flow passages are analysed by using standard k-e turbulent model and discrete phase model (DPM), which is used for describing the influence to turbulent state caused by different boundary conditions, meanwhile, the optimisation design of finishing parameters can be obtained. Finishing platform is constructed, and finishing experiment results show that with the SAF method, the roughness machined is less than Ra 62 nm.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"7 1","pages":"284"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66774075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-01-01DOI: 10.1504/IJAT.2016.081338
Jeffrey Badger, R. Dražumerič, P. Krajnik
The use of electron microscopy and power-monitoring during grinding was investigated in terms of evaluating the fracture and wear characteristics and chip-formation mechanisms of abrasive grains and bond formulations. Diamond abrasives and fused, sintered and sintered triangular-shaped aluminium-oxide abrasives were evaluated. Power was shown to be a useful tool in determining the chip-formation mechanisms and the extent of grit fracture, particularly in triangular-shaped abrasive. Conclusions were supported by electron-microscope analysis. Power was also used to evaluate low-cost diamond vs. premium diamond abrasives. Practical recommendations are given for evaluating grit, wheel and bond performance both in the laboratory and in production.
{"title":"Power monitoring, Fourier transforms of power, and electron microscopy in evaluating the performance of abrasives in grinding","authors":"Jeffrey Badger, R. Dražumerič, P. Krajnik","doi":"10.1504/IJAT.2016.081338","DOIUrl":"https://doi.org/10.1504/IJAT.2016.081338","url":null,"abstract":"The use of electron microscopy and power-monitoring during grinding was investigated in terms of evaluating the fracture and wear characteristics and chip-formation mechanisms of abrasive grains and bond formulations. Diamond abrasives and fused, sintered and sintered triangular-shaped aluminium-oxide abrasives were evaluated. Power was shown to be a useful tool in determining the chip-formation mechanisms and the extent of grit fracture, particularly in triangular-shaped abrasive. Conclusions were supported by electron-microscope analysis. Power was also used to evaluate low-cost diamond vs. premium diamond abrasives. Practical recommendations are given for evaluating grit, wheel and bond performance both in the laboratory and in production.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"7 1","pages":"270-283"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/IJAT.2016.081338","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66774017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-01-01DOI: 10.1504/IJAT.2016.10002390
L. Wan, Z. Deng, Tao Liu, H. Tang, Wei Liu
Camshaft grinding is more complex comparing with the ordinary cylindrical grinding. To improve grinding efficiency and quality, high speed deep grinding with CBN wheel has been shown great advantages. This paper presents an experimental investigation of grinding temperature and depth of maximum un-burn (DMUB) in high speed deep camshaft grinding. A series of experiments have been accomplished by CNC8325 NC camshaft grinder. The results show that the grinding temperature increases with the peripheral wheel speed rises from 60 m/s to 130 m/s. Grinding burn occurs when bigger depth of cutting is applied. The higher peripheral wheel speed has a positive effect on improving depth of maximum un-burn.
{"title":"Experimental investigation of grinding temperature and burn in high speed deep camshaft grinding","authors":"L. Wan, Z. Deng, Tao Liu, H. Tang, Wei Liu","doi":"10.1504/IJAT.2016.10002390","DOIUrl":"https://doi.org/10.1504/IJAT.2016.10002390","url":null,"abstract":"Camshaft grinding is more complex comparing with the ordinary cylindrical grinding. To improve grinding efficiency and quality, high speed deep grinding with CBN wheel has been shown great advantages. This paper presents an experimental investigation of grinding temperature and depth of maximum un-burn (DMUB) in high speed deep camshaft grinding. A series of experiments have been accomplished by CNC8325 NC camshaft grinder. The results show that the grinding temperature increases with the peripheral wheel speed rises from 60 m/s to 130 m/s. Grinding burn occurs when bigger depth of cutting is applied. The higher peripheral wheel speed has a positive effect on improving depth of maximum un-burn.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"7 1","pages":"321"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66774181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2016-01-01DOI: 10.1504/IJAT.2016.10002368
Qiuyun Huang, Lei Guo, I. Marinescu
Based on an extensive review of traditional machining technologies, a novel method to manufacture abrasive tools using ultraviolet (UV) light curing technique was proposed to achieve the economy and accuracy for machining ceramic materials. The UV cured resin bond tools have been proven to have substantial advantages in machining performance. However, there has been limited research on the abrasion mechanism of such tools. In this paper, the mechanism of such resin bond tools is proposed as a hybrid of conventional grinding and lapping, and called as a grinding/lapping (G/L) process. In order to verify the proposed mechanism, three resin bond diamond wheels cured by UV light were used to conduct lapping, grinding, and G/L process, respectively, under the same experimental set-up. The experimental results like surface roughness (RA) and surface profiles of the workpieces undertaking the three operations were compared and showed good agreement with the proposed mechanism.
{"title":"Study on the abrasion mechanism of ultraviolet cured resin bond diamond wheel","authors":"Qiuyun Huang, Lei Guo, I. Marinescu","doi":"10.1504/IJAT.2016.10002368","DOIUrl":"https://doi.org/10.1504/IJAT.2016.10002368","url":null,"abstract":"Based on an extensive review of traditional machining technologies, a novel method to manufacture abrasive tools using ultraviolet (UV) light curing technique was proposed to achieve the economy and accuracy for machining ceramic materials. The UV cured resin bond tools have been proven to have substantial advantages in machining performance. However, there has been limited research on the abrasion mechanism of such tools. In this paper, the mechanism of such resin bond tools is proposed as a hybrid of conventional grinding and lapping, and called as a grinding/lapping (G/L) process. In order to verify the proposed mechanism, three resin bond diamond wheels cured by UV light were used to conduct lapping, grinding, and G/L process, respectively, under the same experimental set-up. The experimental results like surface roughness (RA) and surface profiles of the workpieces undertaking the three operations were compared and showed good agreement with the proposed mechanism.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"7 1","pages":"257"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66774027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-23DOI: 10.1504/ijat.2015.073804
P. Shrivastava, A. K. Dubey
The high wheel wear rate (WWR) is one of the limiting factors during electrical discharge abrasive grinding (EDAG) of ferrous alloys using diamond abrasive. High WWR may adversely affect the material removal rate (MRR) during EDAG. In the present research, the performance of cubic boron nitride (CBN) abrasive has been explored during EDAG of high speed steel by using L27 orthogonal array design of experiments. The performances of CBN abrasive have been compared with the diamond abrasive by considering MRR and WWR as quality characteristics. The performances of CBN abrasive have been found much better than that of diamond abrasive for both the quality characteristics. Further, the modelling and optimisation of the above two quality characteristics have been done by using hybrid artificial neural network and genetic algorithm approach. Optimisation results show considerable improvement in both MRR and WWR.
{"title":"Study of electrical discharge abrasive grinding process performance using CBN abrasive","authors":"P. Shrivastava, A. K. Dubey","doi":"10.1504/ijat.2015.073804","DOIUrl":"https://doi.org/10.1504/ijat.2015.073804","url":null,"abstract":"The high wheel wear rate (WWR) is one of the limiting factors during electrical discharge abrasive grinding (EDAG) of ferrous alloys using diamond abrasive. High WWR may adversely affect the material removal rate (MRR) during EDAG. In the present research, the performance of cubic boron nitride (CBN) abrasive has been explored during EDAG of high speed steel by using L27 orthogonal array design of experiments. The performances of CBN abrasive have been compared with the diamond abrasive by considering MRR and WWR as quality characteristics. The performances of CBN abrasive have been found much better than that of diamond abrasive for both the quality characteristics. Further, the modelling and optimisation of the above two quality characteristics have been done by using hybrid artificial neural network and genetic algorithm approach. Optimisation results show considerable improvement in both MRR and WWR.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijat.2015.073804","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66773328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-23DOI: 10.1504/ijat.2015.073811
Lu Yang, Yucan Fu, Jiu-hua Xu
This paper describes the development of an ultra-high speed grinding motorised spindle specially designed for a project aiming to implement research on mechanism and process of the ultra-high speed grinding of hard-to-cut materials at a maximum wheel speed of 450 m/s. At such high speeds, the loss power caused by air resistance should be primarily focused on as it could even exceed the real cutting power. In this study, a theoretical analysis of loss power was firstly carried out to optimise and determine the spindle rotational speed and wheel diameter. Furthermore, based on the designed motorised spindle, further work was concentrated on estimating the dynamic performance of motorised spindle such as its natural properties and balancing characteristics with finite element method. As well, theses physical properties were experimentally measured for the developed spindle. The results showed that work on the development of the motorised spindle was valid and reliable.
{"title":"Development of an ultra-high speed grinding motorised spindle","authors":"Lu Yang, Yucan Fu, Jiu-hua Xu","doi":"10.1504/ijat.2015.073811","DOIUrl":"https://doi.org/10.1504/ijat.2015.073811","url":null,"abstract":"This paper describes the development of an ultra-high speed grinding motorised spindle specially designed for a project aiming to implement research on mechanism and process of the ultra-high speed grinding of hard-to-cut materials at a maximum wheel speed of 450 m/s. At such high speeds, the loss power caused by air resistance should be primarily focused on as it could even exceed the real cutting power. In this study, a theoretical analysis of loss power was firstly carried out to optimise and determine the spindle rotational speed and wheel diameter. Furthermore, based on the designed motorised spindle, further work was concentrated on estimating the dynamic performance of motorised spindle such as its natural properties and balancing characteristics with finite element method. As well, theses physical properties were experimentally measured for the developed spindle. The results showed that work on the development of the motorised spindle was valid and reliable.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijat.2015.073811","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66773756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-23DOI: 10.1504/ijat.2015.073803
Y. Quinsat, Anthony Guiot, C. Tournier
Complex shapes such as medical implants or injection moulds require the use of super-finishing operations to minimise geometrical defects, down to mirror effect finish. These pre-polishing and polishing operations are still regularly performed manually by skilled workers. In spite of advantages in terms of repeatability, productivity and geometrical quality, automatic polishing methods are not widely used because they require systematic and significant developments. One of the main issues is the modification of the abrasive tool efficiency during the process. It evolves over time due to abrasive grains tearing and transfers onto the abrasive tool surface of workpiece microchips. Thus a model of tool wear is proposed and compensation strategies are elaborated to ensure a constant material removal rate on the surface. Compensations are performed by optimising the spindle speed and/or the feedrate along the tool path and are validated through experimental investigations.
{"title":"Tool wear modelling for constant removal rate in two-bodies automated polishing","authors":"Y. Quinsat, Anthony Guiot, C. Tournier","doi":"10.1504/ijat.2015.073803","DOIUrl":"https://doi.org/10.1504/ijat.2015.073803","url":null,"abstract":"Complex shapes such as medical implants or injection moulds require the use of super-finishing operations to minimise geometrical defects, down to mirror effect finish. These pre-polishing and polishing operations are still regularly performed manually by skilled workers. In spite of advantages in terms of repeatability, productivity and geometrical quality, automatic polishing methods are not widely used because they require systematic and significant developments. One of the main issues is the modification of the abrasive tool efficiency during the process. It evolves over time due to abrasive grains tearing and transfers onto the abrasive tool surface of workpiece microchips. Thus a model of tool wear is proposed and compensation strategies are elaborated to ensure a constant material removal rate on the surface. Compensations are performed by optimising the spindle speed and/or the feedrate along the tool path and are validated through experimental investigations.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"7 1","pages":"73-89"},"PeriodicalIF":0.0,"publicationDate":"2015-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijat.2015.073803","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66773285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-23DOI: 10.1504/ijat.2015.073807
Yun Huang, Yajie Wang, Haining Li, Yaxiong Chen, Zhongsheng Yang
In order to improve dimensional accuracy of aero-engine blade edges, surface removal contour (SRC) model is applied to the engine blade grinding in this study. Firstly, according to variable curvature of characteristics the engine blades, this paper adopts the semi-Hertz contact theory to simulate grinding contact state. Secondly, surface removal contour model was deduced from the material removal rate (MRR) nonlinear model, and the model of the final grinding depth is proposed, and the model consider the influence of path interval. Thirdly, for determining the parameters of MRR nonlinear and linear model, abrasive belt grinding experiment is carried out, which shows the relative error of MRR nonlinear model to be -1.1↓~1.4↓. The application of abrasive belt grinding on the blade showed the maximum error of the processing is within 0.05 mm and the abrasive belt grinding process system is stable.
{"title":"Application model of surface removal contour to blade abrasive belt grinding","authors":"Yun Huang, Yajie Wang, Haining Li, Yaxiong Chen, Zhongsheng Yang","doi":"10.1504/ijat.2015.073807","DOIUrl":"https://doi.org/10.1504/ijat.2015.073807","url":null,"abstract":"In order to improve dimensional accuracy of aero-engine blade edges, surface removal contour (SRC) model is applied to the engine blade grinding in this study. Firstly, according to variable curvature of characteristics the engine blades, this paper adopts the semi-Hertz contact theory to simulate grinding contact state. Secondly, surface removal contour model was deduced from the material removal rate (MRR) nonlinear model, and the model of the final grinding depth is proposed, and the model consider the influence of path interval. Thirdly, for determining the parameters of MRR nonlinear and linear model, abrasive belt grinding experiment is carried out, which shows the relative error of MRR nonlinear model to be -1.1↓~1.4↓. The application of abrasive belt grinding on the blade showed the maximum error of the processing is within 0.05 mm and the abrasive belt grinding process system is stable.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijat.2015.073807","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66773384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-23DOI: 10.1504/IJAT.2015.073805
H. Mohammadi, H. Poyraz, Deepak Ravindra, J. Patten
In this research single point diamond turning (SPDT) is coupled with the micro-laser assisted machining (µ-LAM) technique to machine an unpolished single crystal silicon (100) wafer. SPDT of silicon (Si) can be an extremely abrasive process due to the hardness of this material. Manufacturing this material without causing surface and subsurface damage is extremely challenging due to its high hardness, brittle characteristics and poor machinability. However, ductile regime machining of Si is possible due to the high pressure phase transformation (HPPT) occurring in the material caused by the high compressive and shear stresses induced by a single point diamond tooltip. The µ-LAM system is used to preferentially heat and thermally soften the workpiece material in contact with the diamond cutting tool. Different outputs such as surface roughness (Ra, Rz) and depth of cut (DoC) for different sets of experiments with and without the laser were compared and analysed.
{"title":"Surface finish improvement of an unpolished silicon wafer using micro-laser assisted machining","authors":"H. Mohammadi, H. Poyraz, Deepak Ravindra, J. Patten","doi":"10.1504/IJAT.2015.073805","DOIUrl":"https://doi.org/10.1504/IJAT.2015.073805","url":null,"abstract":"In this research single point diamond turning (SPDT) is coupled with the micro-laser assisted machining (µ-LAM) technique to machine an unpolished single crystal silicon (100) wafer. SPDT of silicon (Si) can be an extremely abrasive process due to the hardness of this material. Manufacturing this material without causing surface and subsurface damage is extremely challenging due to its high hardness, brittle characteristics and poor machinability. However, ductile regime machining of Si is possible due to the high pressure phase transformation (HPPT) occurring in the material caused by the high compressive and shear stresses induced by a single point diamond tooltip. The µ-LAM system is used to preferentially heat and thermally soften the workpiece material in contact with the diamond cutting tool. Different outputs such as surface roughness (Ra, Rz) and depth of cut (DoC) for different sets of experiments with and without the laser were compared and analysed.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"7 1","pages":"107-121"},"PeriodicalIF":0.0,"publicationDate":"2015-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/IJAT.2015.073805","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66773341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-12-23DOI: 10.1504/ijat.2015.073809
Wang Yu-yue, Yun Zhang, Zhijing Feng
Due to the great demand of modern optical systems, many researches on magnetorheological finishing (MRF) technology have been carried out. In this paper, the common MRF was discussed. To reduce the figure error of optical surfaces, dual-rotation magnetorheological finishing (DRMRF) technology was studied. A DRMRF setup was designed and built. Customised magnetorheological polishing fluid was developed and rheological properties were tested. Experiments of removal functions and micro-topography of common MRF and DRMRF were conducted. An experiment of figure error correction was conducted on a Fused Silica workpiece by DRMRF. The figure error was corrected from initial 110.549 nm PV (peak to valley) and 18.201 nm RMS (root mean square) of the whole surface (φ100 mm) to 21.474 nm PV and 2.513 nm RMS within optical aperture (φ96 mm). Results indicate that dual-rotation magnetorheological finishing is an effective method of the figure error correction for ultra-precision optical surfaces.
{"title":"Figure error correction of ultra-precision optical surfaces by dual-rotation magnetorheological finishing","authors":"Wang Yu-yue, Yun Zhang, Zhijing Feng","doi":"10.1504/ijat.2015.073809","DOIUrl":"https://doi.org/10.1504/ijat.2015.073809","url":null,"abstract":"Due to the great demand of modern optical systems, many researches on magnetorheological finishing (MRF) technology have been carried out. In this paper, the common MRF was discussed. To reduce the figure error of optical surfaces, dual-rotation magnetorheological finishing (DRMRF) technology was studied. A DRMRF setup was designed and built. Customised magnetorheological polishing fluid was developed and rheological properties were tested. Experiments of removal functions and micro-topography of common MRF and DRMRF were conducted. An experiment of figure error correction was conducted on a Fused Silica workpiece by DRMRF. The figure error was corrected from initial 110.549 nm PV (peak to valley) and 18.201 nm RMS (root mean square) of the whole surface (φ100 mm) to 21.474 nm PV and 2.513 nm RMS within optical aperture (φ96 mm). Results indicate that dual-rotation magnetorheological finishing is an effective method of the figure error correction for ultra-precision optical surfaces.","PeriodicalId":39039,"journal":{"name":"International Journal of Abrasive Technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1504/ijat.2015.073809","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66773395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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