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bearing track grinding parameter surface finish hardness

(PDF) Review on Effects of Input Parameters and Design of ...

A.Gopala Krishna (2011):- cylindrical grinding when grinding carbon steel (AISI 1042) and Multi-objective optimization of cutting parameters for surface effect of three variables (work speed, diameter of work piece and roughness and metal removal rate in surface grinding using depth of cut) towards surface roughness with aluminum oxide as ...

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Surface Roughness, Machining Force and FlankWear in ...

surface roughness significantly. Aouici et al. [9] have applied response surface methodology (RSM) to optimize the effect of cutting parameters at the different levels of workpiece hardness on surface roughness and cutting force components in hard turning of AISI H11 with CBN tool. Results showed that the cutting force components were influenced

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STUDY OF THE MACHINABILITY OF HARDENED 100CR6 …

of hardened 100Cr6 bearing steel. The evolution of surface roughness (Rz), cutting forces and tool flank wear has been investigated according to the cutting parameters. Experimental results reveals that the feed rate, workpiece hardness and cutting speed have significant effects in reducing the surface roughness; whereas the

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Effect of Newly Developed Ball Burnishing Tool on Surface ...

improve surface roughness, hardness and wear resistance of the material. The ball burnishing tool developed can be used on conventional lathe machine. It is observed that tool is giving satisfactory results to improve surface finish of AA6351. By using the designed tool Surface finish of 0.069 micrometer is achieved.

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JMMP | Free Full-Text | New Abrasive Coatings: Abraded ...

This action generates heat, and it evolves in time as a function of both the ball surface parameters (roughness) and the grinding wheel surface condition (abrasive particles removal). Given the complexity of these phenomena, the bearing manufacturing industry is demanding improvements in materials, geometry, and process parameters calibration.

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Experimental study on the performance of superfinish hard ...

In this study, specimens of AISI 52100 with hardness of 62-63 Rc were hard turned using different cutting parameters. Surface roughness, residual stress, and micro-hardness were measured. The workpieces were then tested for the rolling contact fatigue life under several maximum Hertzian contact stresses.

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Effect of process parameters on surface roughness during ...

Table II: Process parameters with their values at 3 levels. Figure I: Surface roughness machine Parameters designations Process parameters Level-1 Level-2 Level-3 A Wheel Conditioning Dry Wet Gas B Wheel speed (rpm) 1000 1500 2000 C Feed Rate (mm/min) 5 …

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Optimization of Grinding Parameters for Minimum Surface ...

Table 3.5 S/N ratio table for surface roughness Low Medium High H Material Hardness (sH) -4.01 -3.4 -4.04 W Workpiece speed (sW) -4.41 -4.41 -2.64 G Grinding wheel (sG) -6.31 -2.43 -2.72 Average Roughness for each parameter at three levels Tabl 3.6 mean response table for surface roughness S. No Parameter Surface roughness Low Medium High H

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Effect of Surface Roughness and Lubrication on Scuffing ...

lubricant. The specimens were machined by finish grinding, medium grinding, and milling processes. The surface roughness was measured by WYKO 3D surface profiler. Three locations on both sides of the specimen were measured and the average roughness values were calculated. The surface roughness parameters are shown in Table 1. Table 1.

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Surface quality in axial ultrasound plunging-type grinding ...

12%The influence of common grinding and ultrasonic grinding on the surface roughness, residual compressive stress, surface hardness of workpiece, and machining efficiency of the bearing inner raceway under different processing parameters was studied by a single-factor variable control method, and the correctness of the theoretical model was verified.

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STUDY OF THE SURFACE FINISH WHEN TURNING …

surface, prior to the actual machining tests. After each test, the surface finish was measured with the marl type of style surface measurement. 2.2. Experimental design An orthogonal array and ANOVA were applied to investigate the influence of process parameters on the …

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REDUCED IMPROVED CYCLE TIME PART QUALITY WHEEL LIFE

CASE STUDY #1 OD GRINDING - BEARING MARKET APPLICATION Bearing OD track MATERIAL 100Cr6 HARDNESS 62 HRc PART DIMENSIONS Æ110 x 28 mm SURFACE FINISH Ra 0.5 COOLANT Emulsion WHEEL DIMENSIONS 610 x 35 x 203 WHEEL SPEED 80 m/s COMPETITION Previous generation ceramic wheel NORTON SPEC 3NQN120/6 L8 VS3 Grinding Performance Previous …

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Honing and Superfinishing stones for the perfect finish

improved. The surface finish attained produces a high bearing surface essential for components used under high loads. workpiece Superfinishing cup- wheel Superfinishing stone Oscillation movement Honing Axial speed Va Peripheral speed Vu Cutting speed VS Cross - hatch angle αα 30° 45° 60° 90° Stroke speed 1 1 1 1 Peripheral speed 3.7 2.4 ...

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(PDF) Effect of Process Parameters on Surface Roughness ...

Feed Speed The response parameters i.e. surface roughness (Ra µm) and (X2)mm/rev (X3)m/min surface hardness (HRB) burnished specimen measured. With Std.Ord Coded Real Coded Real Coded Real S.R S.H model-TR 110 TIME group instrument and its specification 1 -1 40 -1 0.08 -1 20.8 0.84 88.67 shown in. and SMS machine measure hardness on 100 kgf.

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Effect of burnishing parameters on the surface quality and ...

In industrial manufacturing applications to improve the surface quality of cylindrical parts such as valves, pistons of hydraulic or pneumatic cylinders, pump shafts and bearing bores, some surface-finishing processes such as grinding, super finishing and honing are applied.

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Influence of surface integrity on fatigue life of bearing ...

As main results, precision hard turning can achieve low surface roughness 0.1 μm Ra with respect to the required 0.2 μm Ra obtained by grinding. Both processes introduce microstructural changes.

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» New test methods on ceramic rolling elements

This is a general term that encompasses material removal rate, chipping, grinding force, surface finish, tolerances and subsurface integrity [4]. Statistical evaluation of different silicon nitride materials by scratch testing enables classifying them according to their average chip size as a function of applied load at the diamond tip, as ...

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Understanding the role of surface roughness on the ...

Shape adaptive grinding (SAG) is a flexible finishing process that can be used to attain nanoscale surface finish on hard materials . In an earlier study, SAG was conducted on ground coating and thereafter, chemical assisted SAG (CA-SAG) was performed to attain nanoscale (i.e., 53 nm ( S a )) surface roughness of the WC-Co coating [ 20 ].

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Cutting parameters optimization for surface roughness ...

Response Table 5 gives average S/N Ratios values of each parameter and difference between the maximum and minimum average values which decides the parameter which has significant effect on the surface roughness of the bearing bush. It is clear from the Table that the difference between the maximum and minimum average value of S/N Ratios is higher for the feed (9.156) …

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Effect of Process Parameters on Surface Roughness and ...

Keywords: Roller burnishing, Surface roughness, Surface hardness, C-20, RSM 1. Introduction In present in the era of globalization the performance of machine depend on accuracy, tolerance and surface finish of component. During achieve good accuracy with perfectly matching any parts without tolerance for require good surface finish.

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Investigation of Surface hardness, bearing ratio and ...

cylindricity, surface hardness etc. This paper presents the results of an experimental investigation to find effects of grinding parameters on micro-hardness, roundness and bearing ratio in cylindrical grinding. There are various grinding variables including the wheel morphology, grinding machine stiffness, cutting parameters, work

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Optimization of Surface Roughness in Cylindrical Grinding ...

parameters of a cylindrical grinding machine include depth of cut, material hardness, work piece speed, grinding wheel grain size, and grinding wheel speed. The input process parameters considered are material hardness, work piece speed and depth of cut. The main objective is to predict the surface roughness and achieve optimal operating ...

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19 The CBN wheel in bearing grinding|Newdiamondtools

2.1 The effect of individual grinding parameters on surface roughness. There are many factors that affect the surface roughness, and the most obvious is the abrasive grain size. Fig.2 shows the relationship that the effect of the abrasive grain size …

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Lapping Basics: Characteristics And Application Methods ...

1. Characteristics of lapping. Lapping has the following characteristics: 1) The surface roughness of the workpiece can reach Ra = 0.006 ~ 0.1 μm, and micro-cutting with Ra = 0.1 μm can be carried out.. 2) It can make the mating surface of the couple to get a very precise fit.

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Surface characterization of austenitic stainless steel ...

2012). Significant improvements in surface roughness and surface defects have been reported by the applica-tion of cryogenic cooling when grinding austenitic stain-less steel 316 (Manimaran et al. 2014). High tensile residual stresses have shown to be introduced during grinding of austenitic stainless steel 304 (Turnbull et al.

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Effect of cutting parameters on the dimensional accuracy ...

level. The best surface roughness of 0.312 μm was obtained at 0.08 mm/rev feed rate, 0.5 mm depth of cut, 2000-rpm speed, and 1.2 mm insert nose radius, which is comparable wit h the surface finish obtained by the grinding operation. Keywords: Cutting parameters, Surface finish, Dimensional accu racy, Expert system, Cutting force, Optimal ...

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Counter-surface finish properties | SKF | SKF

Counter-surface finish properties. The surface properties of the cylinder bore and the piston rod have a great influence on the function and service life of the seal. Parameters for specifying a surface finish are defined by ISO 4287:1997. The most common surface roughness parameter specified is R a (in units μm or μin.), i.e. the arithmetic ...

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Influence of rail grinding process parameters on rail ...

Uhlmann et al. [9] studied the influence of rail grinding process parameters on rail surface roughness and surface layer hardness. Furthermore, many assumptions and simulation models were ...

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CASE STUDY: Grinding Bearing Tracks with HPL – The Meister ...

Part: Outer ring double track Component: Bearing Material: SS 440C Hardness: 62 HRC Machine: Studer S110 Coolant: Neat Oil Stock removal: 0.2mm on diameter Surface finish: 0.15 ra max Dressing: 0.008mm (rad) every 15 parts Wheel: Meister Vit CBN – HPL Bonding

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Influence of Ball-Burnishing Process on Surface Topography ...

The ball-burnishing process is a particular finishing treatment that can improve selected properties of different materials. In the present study, the ball-burnishing technique was used to investigate the effect of input parameters of processes on selected surface layer features like surface roughness and residual stresses of the 42CrMo4 steel surfaces.

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