Masters Theses

Keywords and Phrases

Carbon Fiber Reinforced Polymer; Fiber Reinforced Polymer; Laser Machining; Manufacturing Technology

Abstract

“Laser machining countersinks with a frequency doubled Q-switched diode pumped Nd:YAG laser is demonstrated. Tests were conducted in 0.100" thick IM7 prepreg CFRP with [0,90]3S orientation. The HAZ is minimized to avoid stress concentrations in the epoxy matrix. A chamber and filtration system was designed and built to contain the byproducts produced in the machining process. The variables investigated are the number of repetitions in the offset path, the plunge rate, and the line energy. The research was performed over one baseline study, one parameter space exercise, two full factorial experiments, and one repeatability study. Assessment was done under an optical microscope converting pixels to micrometers. The minimum HAZ was 137μm with a line energy of 63.9 J/m, a plunge rate of 2.86 mm/min, and 10 repetitions per pass”--Abstract, page iii.

Advisor(s)

Liou, Frank W.

Committee Member(s)

Chandrashekhara, K.
Krishnamurthy, K.

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Manufacturing Engineering

Comments

The author thanks the Manufacturing Engineering Department at Missouri S&T for the financial aid allowing pursuit of this research.

Publisher

Missouri University of Science and Technology

Publication Date

Spring 2019

Pagination

x, 40 pages

Note about bibliography

Includes bibliographic references (pages 38-39).

Rights

© 2019 Leon James Neely Hill, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 12082

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