Surface Integrity Change of Ultrasonic Extruded Shaft Parts and Multi-Objective Optimization

Wu Xiong; Zhenyu Liu

doi:10.54097/pbymkq11

Authors

Wu Xiong
Zhenyu Liu

DOI:

https://doi.org/10.54097/pbymkq11

Keywords:

UEP; 304 stainless steel; surface properties; influence laws.

Abstract

In the mechanical industry, ultrasonic extrusion processing (UEP) has been developed to improve the surface properties of 304 stainless steel shaft components. Specifically, variations in processing parameters—including spindle speed, feed rate, extrusion depth, and ultrasonic power—significantly influence surface integrity characteristics such as surface roughness, surface hardness, and residual stress. Firstly a four-factor five-level orthogonal experimental design was first implemented to investigate parameter effects. Then the experimental results were analyzed to explore the influence laws of each process parameter on the surface properties.

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