the effect of grinding machine stiffness on surface integrity

the effect of grinding machine stiffness on surface integrity

The Effect of Grinding Machine Stiffness on Surface ...

2000-8-1 · A theoretical model based on mechanics and machine dynamics is presented to describe the effect of machine stiffness on surface integrity of ground silicon nitride. The model accounts for both the static and dynamic structural loop stiffnesses of a precision-grinding machine. Experimental results are also presented to verify the model.

The effect of grinding parameters and gas nitriding depth ...

2019-7-13 · The present contribution aims to study the combination effects of pre- and post-nitriding grinding and gas nitriding parameters (depth of cut, abrasive type, cooling mode, and nitriding depth) on the material grindability and generated surface integrity of AISI D2 tool steel. As a result, it is shown that grinding with sol-gel abrasive type increases AISI D2 surface hardness before gas ...

Calculation of the Contact Stiffness of Grinding Wheel ...

This paper presents the effect of grinding wheel contact stiffness on the plunge grinding cycle. First, it proposes a novel model of the generalized plunge grinding system.

Effect of grinding wheel spindle vibration on surface ...

2015-4-1 · The effects of workpiece speed, grinding speed and initial grinding depth on surface roughness and subsurface damage are analyzed in detail. Firstly, we set the wheel vibration amplitude A =1 μm, coefficient of vibration frequency c f = 2 (where c f = f v / f w ) and initial phase Φ 0 = 30 ° , the other related parameters and simulated ...

Surface Integrity - an overview | ScienceDirect Topics

Surface integrity of the fabricated samples were tested using surface roughness analysis tester (Mitutoyo surf test SJ-210). The test was conducted on FSPed Al7075/CCSA, as well as FSPed Al7075. In order to ascertain the surface finish of the produced samples and textural characteristics is maintained, this test was measured out at three points on a fabricated sample and this was done to ...

Frequency domain identification of grinding stiffness and ...

Since the simulation uses a time-domain model, it can accommodate non-linearities caused by the effect of machine stiffness on grinding forces and actual wheel depth of cut, workpiece regeneration ...

Grinding Machines - an overview | ScienceDirect Topics

Grinding machines, like broaching machines, operate over a range of speeds depending on the type of machine being used.These range from approximately 1250 to 2000m min −1, although in high-speed grinding speeds of up to 5400m/min are achievable (Schey, 1987).The two most common grinding applications are cylindrical grinding and surface grinding.

An Advanced Ultraprecision Face Grinding Machine |

Tetraform is a new design of machine tool that has been developed for the ultra precision grinding of brittle materials where nanometre surface finish and minimum surface and sub-surface damage ...

Research on surface integrity in milling Inconel718 ...

2017-3-13 · Inconel718 has a wide application in aviation and space industry due to its superb comprehensive performance, and surface integrity is directly responsible for evaluating the quality of the components. In this paper, a series of experiments in milling Inconel718 superalloy with small diameter tools were conducted under the sustainable minimum quality lubricant (MQL) condition and the effects ...

Effects of Grinding Parameters on Surface Quality in High ...

2002-5-13 · Grinding is a precision machining process that is widely used to achieve good surface integrity and inish. In order to study and reveal the influence of grinding process parameters such as grinding depth, feed speed, and wheel linear speed on the surface quality of the slider raceway, a series of single-factor grinding experiments under different grinding parameters are carried out on high ...

Study of the effect of process parameters in high-speed ...

2008-11-25 · Study of the effect of process parameters in high-speed grinding on surface integrity by Barkhausen noise analysis M Vashista and S Paul Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 2008 222 : 12 , 1625-1637

Using specially designed high-stiffness burnishing tool to ...

2012-9-18 · This paper is focused on the process of ball burnishing. The influence of tool stiffness on surface roughness parameters was considered theoretically, while experimental investigation was conducted to establish the influence of initial surface roughness (previous machining) on the effects of ball burnishing as the finishing process. Experimental investigations were conducted over a wide ...

Using specially designed high-stiffness burnishing tool to ...

Furthermore, some papers demonstrated positive effects of high-stiffness burnishing tool on surface roughness [21, 22], surface hardness [23], and residual stresses in the workpiece surface layer ...

Effect of speed ratio and grit size on vibration and ...

Many factors affect the surface roughness, such as the shape and size of contact roller, abrasive morphology, grinding method, the stiffness of machine tool and workpiece, abrasive wear and ...

Study to Improve the Spindle Bearing Stiffness of

2021-4-26 · condition of the external grinding machine with a stable speed of rotation. One of the important technical requirements of external cylindrical grinding machines is the stiffness of the spindle unit. hemispherical joints, which wear o. Fig. 1. Cross section of a self-aligning hydrodynamic bearing on an external cylindrical grinding machine [1].

Surface Hardening: Hard Turning or Grinding? | Gear ...

2007-10-1 · Hard turning and grinding are competing finishing processes for the manufacture of precision mechanical components such as bearings, gears, cams, etc. Surface hardening at gentle machining conditions has often been reported and is attributed to strain/strain rate hardening and size effect.

An Advanced Ultraprecision Face Grinding Machine, The ...

2002-10-29 · The impact of servo compliance in B- and X-axes as indi- cated by the displacement measurements for spindle balance 8.2 Monitoring of Surface Integrity During Grinding (Figs 6–9) suggest that improvements in servo dynamic stiff- ness and improvements to spindle balance can have immediate The aim of this programme is to optimise the grinding ...

Research on surface integrity in milling Inconel718 ...

2017-3-13 · Inconel718 has a wide application in aviation and space industry due to its superb comprehensive performance, and surface integrity is directly responsible for evaluating the quality of the components. In this paper, a series of experiments in milling Inconel718 superalloy with small diameter tools were conducted under the sustainable minimum quality lubricant (MQL) condition and the effects ...

The influence of screw omission on construction stiffness ...

The application of bone plates using certain patterns of screw omission did not significantly effect the stiffness of the final construction whilst inherent bone surface strain was increased. It was concluded that the omission of screws in certain defined patterns for a given plate-bone construction may meet the criteria for 'biological fixation'.

Effects of Grinding Parameters on Surface Quality in High ...

2002-5-13 · Grinding is a precision machining process that is widely used to achieve good surface integrity and inish. In order to study and reveal the influence of grinding process parameters such as grinding depth, feed speed, and wheel linear speed on the surface quality of the slider raceway, a series of single-factor grinding experiments under different grinding parameters are carried out on high ...

Study of the effect of process parameters in high-speed ...

2008-11-25 · Study of the effect of process parameters in high-speed grinding on surface integrity by Barkhausen noise analysis M Vashista and S Paul Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 2008 222 : 12 , 1625-1637

Ultra-precision grinding of PZT ceramics – Surface ...

2020-6-17 · a controlling influence on finished surface integrity (Inasaki, 2004). 2. Background. In grinding processes, relative displacement in the loop distance, which can be defined for machine tool structures as the distance between the tool and the workpiece, leads to a variation of the actual depth of cut. For ceramic materials this can cause

An Advanced Ultraprecision Face Grinding Machine, The ...

2002-10-29 · The impact of servo compliance in B- and X-axes as indi- cated by the displacement measurements for spindle balance 8.2 Monitoring of Surface Integrity During Grinding (Figs 6–9) suggest that improvements in servo dynamic stiff- ness and improvements to spindle balance can have immediate The aim of this programme is to optimise the grinding ...

Surface Hardening: Hard Turning or Grinding? | Gear ...

2007-10-1 · Hard turning and grinding are competing finishing processes for the manufacture of precision mechanical components such as bearings, gears, cams, etc. Surface hardening at gentle machining conditions has often been reported and is attributed to strain/strain rate hardening and size effect.

Effect of stretch on structural integrity and ...

Effect of stretch on structural integrity and micromechanics of human alveolar epithelial cell monolayers exposed to thrombin Am J Physiol Lung Cell Mol Physiol . 2006 Jun;290(6):L1104-10. doi: 10.1152/ajplung.00436.2005.

Effect of machining parameters on the mechanical ...

2019-3-2 · The machinability of polymer matrix composites with fibers strongly depends on the type of fiber and dosage in question, having a high influence on the selection of tools and cutting parameters. The cutting temperature depends of rotation and feed cutting tools and is significantly influencing on the quality of the machined surfaces and tool life.

The Influence Factors of Grain Integrity under the ...

2021-8-16 · To investigate the influence factors of propellant grain integrity under the internal pressure, the cylindrical grain was equivalent to a thick-wall cylinder and its three-dimension stress-strain problem was solved. Under the internal and external pressure, the strain and displacement equations of the inside thick-wall cylinder were expressed, and then, the stress and strain expressions of ...

The Effects of Increased Midsole Bending Stiffness of ...

2020-2-7 · Individual compliances of the foot-shoe interface have been suggested to store and release elastic strain energy via ligamentous and tendinous structures or by increased midsole bending stiffness (MBS), compression stiffness, and resilience of running shoes. It is unknown, however, how these compliances interact with each other when the MBS of a running shoe is increased.

"Role of contamination on the bondline integrity of ...

This dissertation focuses on assessing the contaminates effect on the adhesive bondline integrity. A combined experimental and numerical framework is developed to study the contamination effect on the adhesive mechanical properties and adhesive joint strength. The bondline integrity were examined for a system of adhesive (EA9394) and the carbon ...