Results 61 to 70 of about 19,781 (191)
Index to NASA Tech Briefs, 1975 [PDF]
, 1976 This index contains abstracts and four indexes--subject, personal author, originating Center, and Tech Brief number--for 1975 Tech ...
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MetalsCr8 steel should be Steel containing ~8 wt.% of chromium is widely used in demanding die applications due to its excellent wear resistance; however, conventional shot peening, while enhancing strength, inevitably increases surface roughness, thereby ...
Chen Liang +4 more
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Review and critical analysis: Rolling-element bearings for system life and reliability [PDF]
A ball and cylindrical roller bearing technical specification which incorporates the latest state-of-the-art advancements was prepared for the purpose of improving bearing reliability in U.S. Army aircraft. The current U.S.
Anderson, W. J. +2 more
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, 1980 Requirements for the space fabrication of large space structures are considered with emphasis on the design, development, manufacture, and testing of a machine which automatically produces a basic building block aluminum beam.
Muench, W. K.
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Improving Displacement Measurement for Evaluating Longitudinal Road Profiles [PDF]
, 2018 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Chaychian, Sara +4 more
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Materials & DesignThis study proposes a hybrid process method based on Cryogenic Minimum Quantity Lubrication and Ultrasonic Rolling Strengthening Process (CMQL-URSP) to improve the surface integrity and enhance the mechanical properties of blade surface.
Yang Zheng +5 more
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Methodological peculiarities of defectoscopy of the sortament of the rollers of rolling mill after their restoration [PDF]
, 2018 В работе представлены результаты разработки методики ультразвуковой диагностики состояния дефектности малыхпартий роликов прокатного стана разного сортамента, на разных стадиях их восстановления после разрушения рабочей поверхности в процессе ...
Безымянный, Юрий Георгиевич +4 more
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MetalsThis study introduces a novel gradient dual-phase structure design in brass, achieved through ultrasonic severe surface rolling (USSR) processing, which enables an unconventional asymmetric bilayer structure—comprising a hardened surface layer (>1 mm ...
Jing Han +4 more
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Fenmo yejin jishuTC4 alloys were manufactured by selective electron beam melting (SEBM) and subjected to ultrasonic surface rolling processing (USRP) in this study.
HUANG Lang +3 more
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Auto-calibration of ultrasonic lubricant-film thickness measurements [PDF]
, 2007 The measurement of oil film thickness in a lubricated component is essential information for performance monitoring and design. It is well established that such measurements can be made ultrasonically if the lubricant film is modelled as a collection of ...
Astridge D G +9 more
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