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Novel performance assessment of interrupted grinding
2021年8月15日· Abstract The grinding of interrupted geometries, such as keyways, holes, lubrication channels and crankshafts, bearings, helical drills, sharpening,2022年7月16日· Abstract The grinding of interrupted geometries presents technical difficulties such as mechanical impacts and higher thermal gradients regarding theAdvances in the interrupted surface manufacturing by applying
Thermal modeling and optimization of interrupted grinding
2018年1月1日· This paper presents models to calculate the transient and steady state temperatures for interrupted grinding The developed models are then used to2020年5月25日· Interrupted grinding leads to shorter tool life and can lead to a decrease in the dimensional and surface quality of the mechanical component,Grinding assessment of workpieces with different
Grinding process applied to workpieces with different geometries
2020年3月1日· The interrupted grinding led to increase of surface roughness Ra values from 019 to 043 μm (respectively 583% and 229% higher than continuous) for 22018年1月1日· Finishing parts such as blade tips of assembled engine rotors is an interrupted grinding process Thermal issues such as burn often become moreThermal modeling and optimization of interrupted grinding
Novel performance assessment of interrupted grinding process
aimed to investigate further findings about interrupted grinding process of AISI 4340 steel with resinoid aluminum oxide grinding wheel and conventional application of MWF In a2021年12月1日· The grinding of interrupted geometries, such as keyways, holes, lubrication channels and crankshafts, bearings, helical drills, sharpening, and gearNovel performance assessment of interrupted grinding process
Grinding assessment of workpieces with different
2020年5月1日· During the grinding of workpieces with interrupted geometry, Ribeiro et al [8, 9] investigated the influence of the binder on aluminum oxide grinding wheels They observed that the22 Grinding force Besides the imbalance excitation, another instability source for Eq 2 lies in Fx(t) and Fy(t), the interaction grinding forces [26] As depicted in Fig 3, Fx(t) and Fy(t) are Xand Ycomponents of the grinding force: Fx = Fn cosγ +Ft sinγ, Fy = Fn sinγ −Ft cosγ, (3) where Fn [N] and Ft [N] represent normal andRegenerative chatter in a plunge grinding process with workpiece
A schematic of the plunge grinding process A
This paper investigates dynamics of regenerative chatter in selfinterrupted plunge grinding with delayed differential equations (DDEs) and partial differential equations (PDEs)2023年1月1日· In the process of cylindrical grinding operation, the job is supported in amid both centres after which the process is carried out with the assistance of a grinding wheel Due to the complicated setup and high sensitivity of a variety of kinematical, dynamical and geometrical influencing parameters, centre less grinding is hardly used inOptimization of cylindrical grinding process parameters on
Grinding assessment of workpieces with different interrupted
ORIGINAL ARTICLE Grinding assessment of workpieces with different interrupted geometries using aluminum oxide wheel with vitrified bond Fernando Sabino Fonteque Ribeiro1 & José Claudio Lopes1 & Mateus Vinicius Garcia1 & Luiz Eduardo de Angelo Sanchez1 & Hamilton José de Mello1 & Paulo Roberto de Aguiar1 & Eduardo Carlos2016年10月25日· A plunge grinding process is illustrated in Fig 1, where a workpiece is clamped and rotated by a chuck on its left end and is simplysupported by a tailstock on the rightIn order to grind the workpiece, a rotating grinding wheel is fed into the workpiece As material in the workpiece surface is removed during the wheelworkpiece interactions, aRegenerative chatter in selfinterrupted plunge grinding
Novel performance assessment of interrupted grinding process
The grinding of interrupted geometries, such as keyways, holes, lubrication channels and crankshafts, bearings, helical drills, sharpening, and gear hobbing process for pretoothing, presents technical difficulties such as decrease in surface quality and an increase in costs, when compared to continuous grinding processamplitude chatter, the grinding wheel is in constant contact with the workpiece and the cutting process is continuous For the largeamplitude chatter, however, the lost of contact between the workpiece and the tool occurs, and thus the cutting is intermittent or selfinterrupted[25]Specifically,duringonerevolutionofRegenerative chatter in selfinterrupted plunge grinding
Effects of a variety of cutting fluids administered using the
2017年9月8日· An additional goal of the tests was to determine the influence of grinding wheel structure on the course and results of the machining process The results indicate that the physical and chemical properties of Biocut 3000 enabled the most advantageous properties of the machined surface roughness, alongside a simultaneous increase in2022年3月9日· Grinding is a key process in machining and has direct impacts on the accuracy, performance, Köklü U Optimisation of machining parameters in interrupted cylindrical grinding using the greybased taguchi method Int J Computer Integr Manuf 2013; 26: 696–702Optimization of grinding process parameters based on BILSTM
Regenerative and frictional chatter in plunge grinding
2016年6月13日· This paper studies selfexcited vibrations, regenerative and frictional chatters, in a plunge grinding process In consideration of lateral and torsional workpiece movements, a dynamic model with four degrees of freedom is proposed, which involves statedependent time delays and Stribeck effect for regenerative and frictional effects,2018年1月3日· Grinding is generally the first choice to provide combination of both superior surface finish and closer dimensional tolerances in a machined component This process can be employed in manufacturing of continuous and interrupted surfaces Crankshafts and engine piston rings are examples of ground precision mechanical components havingContribution to cylindrical grinding of interrupted surfaces of
Comparative analysis between resinoid and vitrified bond grinding
2020年6月30日· Therefore, it is noted that the wheel bond has a significant influence on the process result, which justifies the evaluation of this wheel characteristic on the outcome of interrupted grinding Thus, the present work aims to verify the influence of the type of bond of the aluminum oxide wheel on the interrupted grinding of AISI 4340 steel2020年5月15日· The centerless grinding process has a unique workpiece (WP) holding system The WP is supported on three points by the grinding wheel, the control wheel, and the supporting blade (see Fig 1), eliminating the need for clamping and centering holes; it results in easier WP loading and unloading, reduced cycle time which leads to highA double input describing function approach for stability
Grinding process applied to workpieces with different geometries
external cylindrical grinding process Figure 2 shows the positioning of the workpiece withtwelvegrooves,aswellas the cuttinginterface and workpiece prior toand after the grinding process During the grinding process, the grinding wheel rotation was 1780 rpm (cutting speed, 32 m/s) and the workpiece rotation was 163 rpm (workpiece speed, 0年12月20日· Abstract Grinding vibrations caused by regenerative cutting force and workpiece imbalance are discussed in this study To regenerate workpiece surface, a grinding wheel is rotated, and pushed towards a rotating workpiece, rubbing and cutting its surface, with regenerative and frictional interactive forces generatedRegenerative chatter in a plunge grinding process with
SciELO Brasil Grinding of AISI 4340 steel with interrupted cutting
Therefore, plenty of cutting fluids are essential to cool not only the workpiece but also the grinding wheel, improving the grinding process In this paper, grinding trials were performed using a conventional aluminum oxide grinding wheel, testing samples made of AISI 4340 steel quenched and tempered with 2, 6, and 12 groovesThe grinding of interrupted geometries presents technical diculties such as mechanical impacts and higher thermal gradients regarding the continuous process, resulting in decreased workpiece quality, premature tool wear, and increased costs However, few studies about interrupted grinding are availableAdvances in the interrupted surface manufacturing by applying
Grinding Monitoring System Based on Power and Acoustic
2000年1月1日· The main task of the grinding monitoring system is the detection of disturbances and the grinding cycle optimization based on the AE and power signal The influence of different dressing parameters on the AEsignal has been investigated and a dressing monitoring system is proposed Reliable data acquisition techniques, whichIn the basic internal grinding process, the wheel is fed perpendicularly into the part usually accompanied by a shortstroke high oscillation along the axis of the wheel The part is rotated in the opposite direction to the wheel (down grind) in virtually all applications except occasionally in finish grinding with large interrupted cuts if roundness is an issueID Grinding TM Precision
Advances in the interrupted surface manufacturing by
2022年8月1日· The cost analysis of grinding wheel wear showed the waste of abrasive material for grinding process with interrupted geometries For all tests, the tool cost for low feed rate (025 mm/min) did