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A Novel Fluorescence Based Method of Assessing Subsurface Damage in Optical Materials
Title
A Novel Fluorescence Based Method of Assessing Subsurface Damage in Optical Materials
Author
Williams, Wesley
Date Created
2009
Subjects--Topical
Mechanical engineering, Materials science, Optics
Description
Lapping and polishing are loose abrasive finishing processes that have been used to achieve critical surface parameters in optical materials for centuries. These processes remove material from the surface through a variety of mechanical and chemic...
Characterization of the Dynamic Performance of Machine Spindles
Title
Characterization of the Dynamic Performance of Machine Spindles
Author
Ganguly, Vasishta
Date Created
2014
Subjects--Topical
Mechanical engineering
Description
Machine spindle dynamics and (axis of rotation) error motions may vary as a function of spindle speed due to gyroscopic effects, changes in bearing preload, centrifugal forces, and thermals effects. It is necessary to characterize these changes in...
Manufacture of Infrared Optics in Brittle Materials
Title
Manufacture of Infrared Optics in Brittle Materials
Author
Owen, Joseph
Date Created
2015
Subjects--Topical
Mechanical engineering
Description
Infrared optics are manufactured for many different applications including: thermal imaging, surveillance, night vision, medical, laser machining, laser surgery, etc. Most infrared transparent materials are hard, brittle, or both. Unless special c...
Time Domain Approach to Stability in Machining Operations
Title
Time Domain Approach to Stability in Machining Operations
Author
Berglind, Luke
Date Created
2015
Subjects--Topical
Mechanical engineering
Description
Machine tool chatter is a common occurrence in machining environments which can lead to undesirable part outcomes and can even cause damage to the machine. Chatter is a result of regenerative dynamic forces inherent in the machining process which ...