A new technique for the determination of superficial residual stresses associated with machining and other manufacturing processes

Wyatt, John E.; Berry, John T.

doi:10.1016/j.jmatprotec.2005.06.067

Cited by 51 publications

(37 citation statements)

References 7 publications

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“…19 Prism measures surface distortion using laser light (ESPI-electronic speckle pattern interferometry). 20 Images from before drilling are compared with those after each incremental drilling.…”

Section: Residual Stress Measurementsmentioning

confidence: 99%

Effect of Process Parameters on Distortion and Residual Stress of High-Pressure Die-Cast AZ91D Components

2017

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This paper presents a study of distortion and residual stress within a high-pressure die-cast AZ91D component, cast under different processing conditions. The influence of process parameters, i.e., die temperature, cooling time, intensification pressure and first-phase injection speeds, was examined. Distortions were measured using the inhouse standard analog quality control fixture. Residual stress depth profiles were measured using a prism holedrilling method. It was found that the most important process parameter affecting the distortion was intensification pressure and the second most important was temperature difference between the two die halves (fixed and moving side). Tensile residual stresses were found very near the surface. Increasing the intensification pressure resulted in an increased level of tensile residual stresses.

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Section: Residual Stress Measurementsmentioning

confidence: 99%

Effect of Process Parameters on Distortion and Residual Stress of High-Pressure Die-Cast AZ91D Components

2017

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“…The present indentation method consists of introducing a series of spaced indents on the machined surface to be evaluated, for measuring, before and after a distension treatment, the indent coordinates using a UMM [11]. Then, different components of residual strain and stress can be obtained from these coordinates.…”

Section: Indentation Methodsmentioning

confidence: 99%

“…Regarding these techniques, Warren et al [10] conducted a study of nanoindentation focused on understanding the basic relationships between mechanical behaviour, microstructure, and residual stresses introduced in machined components. Later on, Wyatt and Berry [11] developed a micro-indentation method that allows performing different studies of residual stresses in high-speed milled components.…”

Section: Related Workmentioning

confidence: 99%

Evaluation of Residual Stresses Induced by High Speed Milling Using an Indentation Method

Díaz¹,

Mammana²,

Guidobono³

2012

MME

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In this work, a recently developed method based on the change of distance between collinear indents is used to evaluate different states of residual stress, which were generated in samples of AA 6082-T6 and AA 7075-T6 aluminium alloys milled at high speed. One of the advantages of this method, which needs a universal measuring machine, is not requiring neither the use of specific equipment nor highly skilled operators. Also, by integrating an indentation device to the mentioned machine, the absolute error of measurement can be reduced. In results obtained in samples subjected to different cutting conditions it is observed a correlation between the stress values and the depth of cut, showing the AA 6082-T6 alloy higher susceptibility to be stressed. Furthermore, the high sensitivity of the method allowed detecting very small differences in the values reached by different normal components in the zones corresponding to climb and conventional cutting. It is important to note that these differences were similar for both evaluated alloys. Finally, the directions associated with the principal components of residual stress, where maximum local plastic stretching occurs, were found to be strongly dependent on the rolling direction prior to machining.

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“…Dogra et al [9] investigated the effect of cutting tool geometry (tool nose radius, rake angle, groove on rake face, edge geometry) in understanding mechanics of turning and stated that an increase in chamfer angle will improved in tool life up to certain value and after that it will decreases. The size of tool edge, nose radius effect on cutting mechanism, nose radius effect of surface roughness, residual stresses of machined integrity.Bery [10] analysed superficial residual stresses in machining of AA 6061-T6511 bar stock. They used a 63.5 mm diameter face mill at various cutting speeds and observed a consistent pattern of residual stresses which vary between tensile and compressive forces as the cutter rotates.…”

Section: Introductionmentioning

confidence: 99%

Residual Stress Analysis in Orthogonal Cutting of AISI 1020 Steel

Bhatkar¹,

Sakharkar

Mohan³

et al. 2017

Proceedings of the International Conference on Communication and Signal Processing 2016 (ICCASP 2016)

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Abstract:The aim of research work is to analyze residual stresses generated during shaper machining. This paper presents the simulation of single point cutting process by finite element method and compared with experimental work results. Taguchi L9 experimental design is used to obtain effective process parameters of rake angle, depth of cut and cutting speed. High speed cutting tool steel is used for orthogonal cutting of AISI 1020 steel on shaper machine. The residual stresses are measured by X-ray sine 2 ѱ diffraction method and finite element software used to simulate residual stress analysis. In Taguchi designed experimentation rake angle 12 0 , depth of cut 1mm, and cutting speed 220m/min has been found optimum cutting parameter for optimize compressive residual stresses.

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A new technique for the determination of superficial residual stresses associated with machining and other manufacturing processes

Cited by 51 publications

References 7 publications

Effect of Process Parameters on Distortion and Residual Stress of High-Pressure Die-Cast AZ91D Components

Effect of Process Parameters on Distortion and Residual Stress of High-Pressure Die-Cast AZ91D Components

Evaluation of Residual Stresses Induced by High Speed Milling Using an Indentation Method

Residual Stress Analysis in Orthogonal Cutting of AISI 1020 Steel

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