Morphology of metal surface generated by nylon/abrasive filament brush

Overholser, R.W; Stango, R. J.; Fournelle, R.A.

doi:10.1016/s0890-6955(02)00112-8

Cited by 20 publications

(16 citation statements)

References 6 publications

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“…Reasonable approximation of wheel-type filament tool forces by Stango et al has been accomplished through application of the Coulomb friction law to develop an orthogonal polishing force model that relates normal and shearing forces to a dry friction coefficient for the tool/workpiece combination [8]. Overholser et al analyzed the resulting surface morphology after polishing with two different wheel-type nylon/SiC tools loaded with 32-and 142-μm-diameter particles [9]. The workpiece material was 6061-T6 aluminum with a hardness value of HRB 58, and the authors found that the primary material removal mechanism was abrasive cutting and microchip formation.…”

Section: Surface Polishing Mechanismmentioning

confidence: 99%

“…The width and depth of these scoring marks has been associated with the magnitude of the penetration depth during polishing [9], which is the vertical displacement that the tool is lowered below the workpiece surface during operation. Since the workpiece modulus of elasticity is two orders of magnitude greater than that of the bristles, any increase in penetration depth correlates to elastic bending of the bristles which contributes to an increase in the normal force applied to the tool and greater shearing forces along the tip and sides of the filament in contact with the workpiece.…”

Section: Surface Polishing Mechanismmentioning

confidence: 99%

“…While substantial efforts have been made to characterize the filament wear and surface morphology generated by circular wheel tools [9], less information is found in the literature regarding the characterization and machining performance of disk-type tools with nylon abrasive filaments or about the integrity of surfaces that are generated by these types of abrasive tools for cast iron. It has been noted by the authors of several studies that there is still a great deal of uncertainty regarding the material removal mechanics of filament tools, so much so, that it has been suggested that trial-and-error experimentation is often necessary before the application of the tool can be implemented in a production environment [9][10][11].…”

Section: Surface Polishing Mechanismmentioning

confidence: 99%

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Characterization of surface polishing with spindle mounted abrasive disk-type filament tool for manufacturing of machine tool sliding guideways

Raymond

Hill

Soshi

2016

Int J Adv Manuf Technol

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In order to expand the regional production of machine tools which utilize precision machined sliding guideways, cubic boron nitride (CBN) hard milling may be implemented as an alternative finish process instead of conventional surface grinding. While higher material removal rates can be achieved with a milling strategy, the use of a defined cutting edge leads to surfaces with asperities. These sharp peaks quickly wear down during sliding contact, resulting in unacceptable changes in the load bearing surface of the guide. Therefore, a post process to milling must be implemented to mitigate these features. This paper investigates the use of a spindle mounted abrasive disk filament tool for producing a functional surface similar to the ground surfaces. The optimal process parameters were investigated using 2D profile measurements, followed by comparison using areal analysis of ground, milled, and polished surfaces. It was found that polishing reduces both the height and volume of asperities on the milled surface, leading to contact characteristics which were more similar to those of the conventional ground surfaces currently used for sliding guideways.

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Section: Surface Polishing Mechanismmentioning

confidence: 99%

Section: Surface Polishing Mechanismmentioning

confidence: 99%

Section: Surface Polishing Mechanismmentioning

confidence: 99%

See 1 more Smart Citation

Characterization of surface polishing with spindle mounted abrasive disk-type filament tool for manufacturing of machine tool sliding guideways

Raymond

Hill

Soshi

2016

Int J Adv Manuf Technol

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“…remove undesirable burrs resulting from the milling, etc., or the changes in the condition of the edges of the objects in a form of rounding, chamfering, blunting [1,8,9,11]. Taking into account the fact that most elements after machining have burrs, the application of brushes in the machining centres creates a possibility of processing involving the removal of burrs directly after machining without dismantling the parts from the area of the treatment machine.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Machining Conditions on the Forces in the Process of Roller Brush Machining

Matuszak¹

2017

Adv. Sci. Technol. Res. J.

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Brushing is one of the mechanical processing methods of the surface, which involves the effect of a rotating tool on the workpiece. There are many design solutions for brushes, and the basic division is related to the arrangement of working elements and divides the processing into cylindrical and front brush. The more detailed division concerns the materials used to fill brushes, which can be natural, artificial, composite in a form of sunken abrasive grains into plastic fibers. In addition, individual fibers can be found in a simple, crimped or knot form. Brushes with knot fibers are more rigid and are thus used for more aggressive applications. Fibers can also be characterized by chemical and temperature resistance.By analysing the brushing process and the effects obtained after this treatment, it is difficult to clearly identify this process into a particular surface treatment method. At the intersection of the cylindrical surface of the fibre with the front one, an edge is formed, which can be treated as the cutting edge of the tool, which is present in typical machining tools. While brushing, the material removal nature of this process can be seen, however, the brushing products are comparable to those produced in abrasive processing. In turn, taking into account the kinematics of the treatment, individual fibres, while hitting the surface, perform the burnishing task analogous to the dynamic burnishing process [13,14]. The study results of the hardening of the surface layer and its favourable properties are presented in [2]. The study results on the increase of fatigue strength due to the favourable effect of brushing on the state of stresses and the hardening of the surface layer were presented. Considering various ways of impact of the brushing process on the surface and the surface layer, the brushing treatment can be treated as one of the hybrid processing methods. In practice, brushing is used to change the topography of the surface, remove corrosion products, paint coatings. The change of topography of the surface may be related to the decorative aspect or it may affect the surface development, the increase of free surface energy, which is of key importance in adhesion material bonding [4]. However, the most beneficial effects can be obtained by using the brush-cleaning treatment to Research Article ABSTRACT Because of its advantages, brushing processing has many uses. The main ones include the removal of corrosion products, surface cleaning, deburring and shaping the properties of the surface layer. The intensity of these processes depends on the degree of impact of brush fibres on the work surface. In the case of tools, in which the resilient fibres are the working elements, forces in the brushing process, apart from the machining parameters, depend on the characteristics and overall dimensions of individual fibres. The paper presents the results of studies of the influence of technological parameters and type of fibres on the radial force in the brushing process. THE EFFECT OF MACHINING CONDITIONS...

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“…Nylon/abrasive brushing tools are used in surface finishing processes for a wide range of applications, such as blending, polishing, and edge-radii (Overholser et al, 2003). These flexible brushing tools can easily be adopted in milling, turning or grinding machines so that there is no necessity to invest in new machinery.…”

Section: Introductionmentioning

confidence: 99%

Elimination of surface spiral pattern on brake discs

Rodríguez

Lacalle

Fernández

et al. 2014

J. Zheijang Univ.-Sci.

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Nowadays, brake disc manufacturers are seeking new finishing techniques to offer economical solutions to their customers and so become more competitive. The elimination of the surface spiral pattern after turning operation is a challenge to avoid braking problems at the early life of the component. This paper presents a practical low-cost solution to finishing this kind of component. Concretely, a detailed study of the brushing process as an alternative solution to the conventional grinding process is performed. The limited literature regarding this topic implies the necessity of a full study of the process prior to any industrial application. The influence of process variables on the final surface was analyzed in this work. In addition, the tool wear and tool life behavior, the influence of the abrasive type used and the originating forces during the process were taking into account. Once the process was established, various prototypes were finished in order to check the feasibility of the process and to pass the required quality control. Results show that brushing is a feasible and economical alternative for brake disc finishing. The surface quality obtained was shown to be equal or better than grinding, with reduced costs and manufacturing time.

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Morphology of metal surface generated by nylon/abrasive filament brush

Cited by 20 publications

References 6 publications

Characterization of surface polishing with spindle mounted abrasive disk-type filament tool for manufacturing of machine tool sliding guideways

Characterization of surface polishing with spindle mounted abrasive disk-type filament tool for manufacturing of machine tool sliding guideways

The Effect of Machining Conditions on the Forces in the Process of Roller Brush Machining

Elimination of surface spiral pattern on brake discs

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