Characterization of the surface condition in AA6061 resulting from deep rolling as a function of common industrial parameters

Author

Andrew Kenneth Layer

Keywords and Phrases

Burnishing; Characterization; Hole Drill; Residual Stress; Surface Roughness

Abstract

"Roller burnishing is widely used in industry to improve the surface finish and fatigue life of components. As weight reduction continues to grow in the automotive and transportation industries, deep rolling can help maintain product performance by mitigating the increase in component stresses resulting from lower weight systems. Deep rolling parameters such as tool, applied angle, feed rate, spindle speeds, and relative tool direction all affect cycle time, product performance, and appearance. The effects of common industrial parameters on the resultant surface roughness and residual stress profiles were studied in this investigation. The samples were manufactured on a CNC lathe using industry standard tooling. Surface roughness was measured by use of a contact profilometer. The components residual stresses were measured using the Hole Drill Method (ASTM E837). The compressive stress magnitudes, depths, and orientation of the residual stress were characterized. The results suggest that the type/mechanism of the burnishing tool was the most statistically significant contributor toward surface roughness and compressive residual stress. Feed rate was the second most significant experimental parameter. Additionally, a correlation between roughness and residual stress was found when using a constant burnishing tool"--Abstract, page iii.

Advisor(s)

Dharani, Lokeswarappa R.

Committee Member(s)

Stutts, Daniel S.
Nanninga, Nicholas N.

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Publisher

Missouri University of Science and Technology

Publication Date

Fall 2019

Pagination

xi, 74 pages

Note about bibliography

Includes bibliographical references (pages 71-73).

Rights

© 2019 Andrew Kenneth Layer, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 11631

Electronic OCLC #

1139525633

Recommended Citation

Layer, Andrew Kenneth, "Characterization of the surface condition in AA6061 resulting from deep rolling as a function of common industrial parameters" (2019). Masters Theses. 7917.
https://scholarsmine.mst.edu/masters_theses/7917