Residual Stresses in Tool Ceramics and Their Influence on Tool Life

Brinksmeier, E.; Wobker, H.-G.

doi:10.1007/978-94-009-1143-7_44

Cited by 2 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To reduce the possibility of crack initiation, a variety of mechanical surface treatments (e.g. cold-rolling and shot-peening) are applied in practice to introduce purposely a compressive residual stress state in the surface layers of metallic components (Brinksmeier et aL, 1994). In components formed by joining of dissimilar materials, there are internal interfaces.…”

Section: Introductionmentioning

confidence: 99%

“…In the past, X-ray diffraction combined with electro-polishing has been used to determine the residual stress distribution in the surface layers of metallic components. With this method, considerable progress has been made towards the understanding of residual stresses generated by mechanical surface treatments (Brinksmeier et al, 1994;Scholtes, 1993). Unfortunately, because X-rays do not penetrate beyond the surface layers, X-ray diffraction cannot be used to probe residual stresses in the vicinity of an internal interface.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theory of the Peak Shift Anomaly due to Partial Burial of the Sampling Volume in Neutron Diffraction Residual Stress Measurements

Wang¹,

Spooner²,

Hubbard³

1998

J Appl Cryst

View full text Add to dashboard Cite

A theory is presented to describe the anomalous peak shift encountered in neutron diffraction residual stress measurements as the specimen is translated into and out of the sampling volume, which is defined by a pair of masking slits inserted before and after the specimen. Analytical formulae for the anomalous peak shift were obtained for both position-sensitive-detector-based diffractometers and conventional scanning diffractometers. The results indicate that the observed peak shift is a complex function of many variables, including the in-pile collimation, slit widths, slit-to-axis distances, mosaic spread of the monochromating crystal, and mismatch in lattice spacing between the sample and the monochromator. Calculations based on the derived analytical formulae are in good agreement with experimental observations. It is shown that by the choice of appropriate experimental conditions, this peak shift anomaly can be suppressed or, in some cases, eliminated altogether.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Theory of the Peak Shift Anomaly due to Partial Burial of the Sampling Volume in Neutron Diffraction Residual Stress Measurements

Wang¹,

Spooner²,

Hubbard³

1998

J Appl Cryst

View full text Add to dashboard Cite

show abstract

“…The increase in temperature of the work item will also impact dimensional tolerances. (Brinksmeier E, Minke E, 2003) It has also been observed that the component of Inconel 718 has a thermal expansion coefficient of 13 µm/m⋅K, and a length of 100 mm has increased to approx 102 µm on the rise in workpiece temperature by 100°C approximately. Most dies and moulds require high accuracy with less than 50 µm by an increase in workpiece temperature of more than 100°C, and their accuracy may be compromised.…”

Section: Introductionmentioning

confidence: 99%

Multi-response Optimization of Machining Parameters in Inconel 718 End Milling Process Through RSM-MOGA

Kalra

Gupta

2022

The Scientific Temper

View full text Add to dashboard Cite

Most of the time, thin walls may be developed during milling operations to manufacturecomplicated dies and moulds. In current high-speed machining, bending these thin wallsis expected owing to thermal expansion, making it a common source of dimensional error.Workpiece temperature (WT) with a response Machine time has been considered outputresponses. By adopting a unique technique, the response surface methodology during 2.5 Dmilling of Inconel 718, an anti-corrosive material, we could reach the best process parameterscombination for minimizing workpiece temperature. The workpiece’s temperature wasdetermined by three sets of combinations of k-type thermocouples while the surface testermeasured surface quality. Box–Behnken design has been used to conduct 26 trials to determinethe best combinations of parameters. Several process variables were examined, includingcutting speed, feed per tooth, depth of cut, and tool nose radius, and ANOVA has been usedto quantify the impact of these variables. A multi-objective genetic algorithm based on theregression model has been applied to optimize the parameters. Five structural experiments werealso conducted to verify this optimized process parameters combination, which was provenmore successful.

show abstract

Residual Stresses in Tool Ceramics and Their Influence on Tool Life

Cited by 2 publications

References 1 publication

Theory of the Peak Shift Anomaly due to Partial Burial of the Sampling Volume in Neutron Diffraction Residual Stress Measurements

Theory of the Peak Shift Anomaly due to Partial Burial of the Sampling Volume in Neutron Diffraction Residual Stress Measurements

Multi-response Optimization of Machining Parameters in Inconel 718 End Milling Process Through RSM-MOGA

Contact Info

Product

Resources

About