Results 101 to 110 of about 10,110 (227)
Friction pull plug welding: top hat plug design [PDF]
Friction Pull Plug Welding is a solid state repair process for defects up to one inch in length, only requiring single sided tooling, or outside skin line (OSL), for preferred usage on flight hardware.
Cantrell, Mark A., Coletta, Edmond R.
core +1 more source
Effect of tool geometry on friction stir spot welding of polypropylene sheets [PDF]
The effects of tool geometry and properties on friction stir spot welding properties of polypropylene sheets were studied. Four different tool pin geometries, with varying pin angles, pin lengths, shoulder diameters and shoulder angles were used for ...
M. K. Bilici
core +2 more sources
This study investigates laser metal deposition of aluminum alloys EN AW‐7075 and EN AW‐5083, using powder blending to compensate zinc and magnesium evaporation. In situ alloying and ex situ alloying with ZnAl12 and AZ91 preserve near‐standard compositions and improve mechanical properties.
Finn Bendixen +3 more
wiley +1 more source
Index to 1984 NASA Tech Briefs, volume 9, numbers 1-4 [PDF]
Short announcements of new technology derived from the R&D activities of NASA are presented. These briefs emphasize information considered likely to be transferrable across industrial, regional, or disciplinary lines and are issued to encourage ...
core +1 more source
Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives
A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim +2 more
wiley +1 more source
Kata kunci: waktu gesek, las gesek, tekanan tempa, baja karbon rendah, pipa air Abstract The welding process of the carbon steel pipe will be abit difficult since during welding it is needed rotary movement of the pipe in order to the operator easily to ...
Budi Luwar Sanyoto +3 more
doaj
A Si anode comprising entangled networks of cellulose and SWCNT (C‐CNT) nanocomposites as an anode electrode for a high‐performance LIB is realized by fully utilizing the generated microstructure of a novel conductive 3D scaffold via a low‐temperature and eco‐friendly process. Additionally, localized heating via photo‐thermal conversion can be utilized
Boeun Ryu +5 more
wiley +1 more source
Novel Functional Materials via 3D Printing by Vat Photopolymerization
This Perspective systematically analyzes strategies for incorporating functionalities into 3D‐printed materials via Vat Photopolymerization (VP). It explores the spectrum of achievable functionalities in recently reported novel materials—such as conductive, energy‐storing, biodegradable, stimuli‐responsive, self‐healing, shape‐memory, biomaterials, and
Sergey S. Nechausov +3 more
wiley +1 more source
Evaluation of a high-torque backlash-free roller actuator [PDF]
The results are presented of a test program that evaluated the stiffness, accuracy, torque ripple, frictional losses, and torque holding capability of a 16:1 ratio, 430 N-m (320 ft-lb) planetary roller drive for a potential space vehicle actuator ...
Steinetz, Bruce M.
core +4 more sources
Rotary friction welding is widely utilized in similar and dissimilar welding of alloys such as magnesium and aluminum alloys, steels, and superalloys. The maximum temperature of the joint and welding defects in this method are lower than in any fusion ...
Mojtaba Farbakhti +5 more
doaj +1 more source

