STUDY OF THE EFFECT OF MACHINING-INDUCED RESIDUAL STRESS ON THE DISTORTION OF THIN-WALLED PARTS BY FEM

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ESKINI ALI; ZAMANI EHSAN

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:13 (SUPPLEMENT) Page(s): 12-18

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Title

STUDY OF THE EFFECT OF MACHINING-INDUCED RESIDUAL STRESS ON THE DISTORTION OF THIN-WALLED PARTS BY FEM

Author(s)

ESKINI ALI | ZAMANI EHSAN | Issue Writer Certificate

Keywords

AL7075 ALLOYQ2

DISTORTIONQ2

FEMQ2

MACHINING THIN-WALLED PARTSQ2

RESIDUAL STRESSQ2

Abstract

The main problems in the machining of thin walled parts made of aluminum alloys are the DISTORTION and dimensional instability after machining which lead to an increase in the production costs. In general, DISTORTION in machined parts made of aluminum alloy is a function of the RESIDUAL STRESSes. In this study, a three-dimensional FEM model in Abaqus under orthogonal cutting conditions is used for investigating the correlation between machining induced RESIDUAL STRESSes and the DISTORTION in thin-walled cylinder made of AL7075-T6 alloy. To compare and validate the FEM model with experimental results of other papers, several simulation are carried out under different conditions using K10 and PCD tools. Machining force, temperature and DISTORTION were measured. Correlation between RESIDUAL STRESS and DISTORTION was studied by measurement on some workpieces. The results represented the direct effect of stresses on level of DISTORTION. Unlike experimental, there is no limitation in FEM model to compute amount of RESIDUAL STRESSes in all directions. Results showed a good agreement with experiment. This indicates that the FEM model can be used to simulate machining process to predict its DISTORTION with no limitation with saving of 600 euros for each test considering the equipments limitation in Iran.

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APA: Copy

ESKINI, ALI, & ZAMANI, EHSAN. (2015). STUDY OF THE EFFECT OF MACHINING-INDUCED RESIDUAL STRESS ON THE DISTORTION OF THIN-WALLED PARTS BY FEM. MODARES MECHANICAL ENGINEERING, 15(13 (SUPPLEMENT)), 12-18. SID. https://sid.ir/paper/177892/en

Vancouver: Copy

ESKINI ALI, ZAMANI EHSAN. STUDY OF THE EFFECT OF MACHINING-INDUCED RESIDUAL STRESS ON THE DISTORTION OF THIN-WALLED PARTS BY FEM. MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(13 (SUPPLEMENT)):12-18. Available from: https://sid.ir/paper/177892/en

IEEE: Copy

ALI ESKINI, and EHSAN ZAMANI, “STUDY OF THE EFFECT OF MACHINING-INDUCED RESIDUAL STRESS ON THE DISTORTION OF THIN-WALLED PARTS BY FEM,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 13 (SUPPLEMENT), pp. 12–18, 2015, [Online]. Available: https://sid.ir/paper/177892/en

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