Masters Theses


"Laser micromachining using ultrashort pulses plays a vital role in today’s commercial and industrial applications. The laser surface texturing is a laser micromachining technique to create array of bumps/holes/grooves. The laser surface texturing is a novel technique to improve the surface tribology. In this paper the laser surface texturing was done using a Q-switched pulsed laser with 30ns FWHM pulse duration and 355nm wavelength on AISI 304 grade stainless steel samples. The samples are tested for the tribology using a pin-on disk tribometer. The comparison study was done between the textured and untextured samples for friction reduction. The results show that there is a significant reduction in the friction and increase in material lifetime and lubricant rheology with the textured samples. The samples are also tested for rectangular and circular grooving texture patterns. The results show that the circular pattern has reduced more friction than the rectangular groove pattern which implies that the oil retention was efficient in the former one. The application of laser surface texturing is extended to improve the cooking efficiency. The stainless steel pans are textured with rectangular/circular/hole pattern to overcome the cooking problem of pan stickiness. The textured sample shows significant reduction in stickiness compared to the untextured sample"--Abstract, page iii.


Tsai, Hai-Lung

Committee Member(s)

Liou, Frank W.
Le, Vy Khoi


Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering


University of Missouri--Rolla

Publication Date

Fall 2005


viii, 34 pages

Note about bibliography

Includes bibliographical references (pages 32-33).


© 2005 Krishnathejan Akumalla, All rights reserved.

Document Type

Thesis - Restricted Access

File Type




Subject Headings

Stainless steel -- Surfaces
Lasers -- Industrial applications

Thesis Number

T 8889

Print OCLC #


Link to Catalog Record

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