Optimization of preform part for hot forging process of axle shaft

Name: Vachiraphan Sukjantha.

LCSH: Axles -- Heat treatment.

LCSH: Steel forgings.

Abstract: The main objective of this research is to design an optimized preform of axle shaft by modifying the geometry (preform profile), which can reduce underfill defect and lower the maximum forming load. A geometrically parametric approach based on backward simulation method was applied to determine the optimal preform shape before final hot forging process. Sensitivity analysis on different dimensions of the preform has been conducted to investigate the effect of the geometry on the material flow to the specified part dimensions by using isothermal visco-plastic Finite Element Modelling (FEM), DEFORM-3DTM. The underfilled defects and the maximum forming load were used an indicator justify the feasible design of the optimum preform geometry. The purpose is to minimize the maximum forming load, because the advantage was to improve and enhance the die life by reducing minimum fatigue strength acting on the die at the final forging step. The simulation results indicate that the axle shaft had been successfully formed by using the optimized preform shape and the maximum forming load could reduce approximately 35% that obtained from the original preform.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Name: Yingyot Aue-u-lan

Role: Thesis advisor.

Email : yingyot.a@tggs.kmutnb.ac.th

Created: 2012

Modified: 2021-02-24

Issued: 2021-02-24

วิทยานิพนธ์/Thesis

application/pdf

eng

DegreeName: Master of science

Level: Master's Degree

Descipline: Materials and Production Engineering (International Program)

Grantor: King Mongkut's University of Technology North Bangkok

©copyrights King Mongkut's University of Technology North Bangkok

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