Computer Simulation of Residual Stresses/Distortion and Structural Change in the Course of Scanning Induction Hardening.

Ikuta, Fumiaki; Arimoto, Kyozo; Inoue, Tatsuo

doi:10.2472/jsms.47.892

Cited by 5 publications

(3 citation statements)

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“…For example, Fig. 17 shows a comparison between experiments and simulations for axial and tangential residual stresses along the axis at a moving speed of 10 mm/s, and there is a reasonable agreement between the two outcomes [25]. Mailänder [26] performed experiments on nitriding phenomena in cylindrical specimens of 1% Al-1.3% Cr steel.…”

Section: Figure 11: Shape and Dimension Of Tanaka's Cylindrical Specimensmentioning

confidence: 92%

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A Brief Review on Validation for Heat Treatment Simulation

Arimoto¹

2021

Heat Treating Conference

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Heat treatment simulation has progressed to the stage where several commercial software are available. Validations of simulation functions using experimental results contributed to this realization. Organizing information on the validations may be effective for maintaining the functions and educating users about the nature of the phenomena. For this reason, the author here briefly reviews mainly his validation cases. Since experiments using specimens having relatively simple shapes can reveal the essence of complex phenomena, the results have been used in the validations. When the basic functions such as heat transfer, phase transformation, latent heat, and hardness prediction were comprehensively validated in the early stages of software development, the author used experimental results of the inverse hardening in quenched steel cylinders. After that, his validations of the software at the stage where adding stress and strain analysis functions, used effectively measurement data of length and diameter changes, and residual stress distributions in normally quenched steel cylinders. While, it was also worth to validate curving in long specimens cooled unevenly, which included a case of specimens with a similar cross-section to the Japanese sword. In addition, the author validated distortions and residual stresses in carburized and quenched, induction hardened, and also nitrided specimens.

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Section: Figure 11: Shape and Dimension Of Tanaka's Cylindrical Specimensmentioning

confidence: 92%

“…Ikuta et al [24,25] conducted a scanning induction quenching on a JIS S 55C steel cylinder with the 23 mm diameter and the 440 mm length using the experimental system shown in Fig. 16.…”

Section: Figure 11: Shape and Dimension Of Tanaka's Cylindrical Specimensmentioning

confidence: 99%

A Brief Review on Validation for Heat Treatment Simulation

Arimoto¹

2021

Heat Treating Conference

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“…In the field of heat treatment, there are many studies on the relationship between heating-cooling methods and residual stress. [25][26][27][28] As described above there are many studies about heat and residual stress. However, there is no study about controlling residual stress by actively generated temperature gradients during plastic working.…”

Section: Introductionmentioning

confidence: 99%

Residual Stress Control in Drawn Bar and Wire by Heating-Cooling-Drawing Process

et al. 2021

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We investigated the drawing process with a temperature gradient in the radial direction of the bar to achieve flexible control of the residual stress in the drawn bar with only the drawing process. The obtained results are as follows: (1) A heating-cooling-drawing process was developed to generate a temperature gradient in the radial direction of the bar. The optimum cooling time was determined by heat conduction analysis. A cooling time of 0.54 s is optimal for a steel bar with a diameter of 10 mm. (2) We experimentally confirmed that the proposed method is extremely effective for controlling the residual stress in a bar or wire. (3) The residual stress decreased by increasing the heating temperature up to 400°C. Above 400°C, the control of stress was small. (4) The combination of the proposed method and extremely small reduction drawing is effective for obtaining strong compressive residual stress in the surface layer. For a 0.4% or 0.6% reduction rate of the section area, residual stress reduction of 900 MPa was obtained. ( 5) It was confirmed that residual stress is reduced when the material is cooled down after drawing by finite element analysis considering thermal strain. The mechanism of residual stress reduction by the proposed method is the loss of thermal stress due to the drawing process and the thermal contraction at the center during cooling.

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Flying Debris — Elastic Scattering Approach

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Computer Simulation of Residual Stresses/Distortion and Structural Change in the Course of Scanning Induction Hardening.

Cited by 5 publications

References 0 publications

A Brief Review on Validation for Heat Treatment Simulation

A Brief Review on Validation for Heat Treatment Simulation

Residual Stress Control in Drawn Bar and Wire by Heating-Cooling-Drawing Process

Flying Debris — Elastic Scattering Approach

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