Results 41 to 50 of about 38,938 (306)
Crystals, 2023 To repair or improve the performance of H13 hot working molds through the additive manufacturing process, IN 718 was coated on H13 die steel by high-speed laser cladding followed by an ultrasonic surface rolling process (USRP).
Jingbin Hao +3 more
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Active and passive compliant force control of ultrasonic surface rolling process on a curved surface
Chinese Journal of Aeronautics, 2022 Abstract Ultrasonic surface rolling process (USRP) is one of the effective mechanical surface enhancement techniques. During the USRP, unstable static force will easily do harm to the surface quality. In order to achieve a higher surface quality on the part with a curved surface, an active and passive compliant USRP system has been developed.
Kaiming ZHANG +4 more
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Results in Materials, 2022 The key components of the automatic gun are subjected to the severe working condition of high temperature, transient state and continuous strong impact load in the shooting process, the surface of which using the alloy constructional steel is prone to ...
Dan Liu +6 more
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Journal of Materials Research and Technology, 2023 Static force, ultrasonic amplitude, feed rate, and rolling spacing parameters of 42CrMo steel treated by the ultrasonic surface rolling process (USRP) were optimized by the Grey-Taguchi method. Nine sets of experiments based on an orthogonal array design
Yuhui Yang +5 more
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Experimental study on surface roughness processed by ultrasonic surface rolling process
Journal of Physics: Conference SeriesAbstract In order to explore the formation principle of microscopic morphology of the lower surface of USRP, USRP theoretical analysis and processing experiments are carried out. Firstly, the spatial motion trajectory of tool head by USRP is established to reveal formation principle of surface morphology.
Haojie Wang, Xiaoqiang Wang
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Potential fatigue strength improvement of AA 5083-H111 notched parts by wire brush hammering: Experimental analysis and numerical simulation [PDF]
, 2014 The effects of milling as machining process and a post-machining treatment by wire-brush hammering, on the near surface layer characteristics of AA 5083-H111 were investigated.
SIDHOM, Habib +4 more
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, 2022 The use of the magnesium alloy AZ31 is common in aviation and biomedicine; however, this alloy has poor friction and corrosion resistance. Here, mechanical grinding, ultrasonic rolling, and ultrasonic rolling + ion implantation were performed on the ...
Zhongyu Dou +4 more
core +1 more source
Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley +1 more source
Research on the Influence Law of Ultrasonic Rolling Passes on the Tension-Tension Fatigue Properties of AZ31B Magnesium Alloy [PDF]
Cailiao BaohuIn order to improve the fatigue performance of AZ31B magnesium alloy under high-stress levels and reveal the related mechanism，ultrasonic rolling process was used to roll it for different passes (2/4/6).Subsequently， the fatigue life， surface roughness ...
SUN Xingzi, LI Shunlong, CHEN Qingqiang, SUN Jie, QI Xinchun, LU Laixiao
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Rock Crushing Analysis of TBM Disc Cutter Assisted by Ultra-High-Frequency Loading
Shock and Vibration, 2022 In the construction of mountain tunnels, the increasing proportion of hard rock stratum enhances the difficulty of rock breaking by tunnel boring machine (TBM). As a type of cyclic load with ultrahigh frequency, ultrasonic vibration has the advantages of
Dajun Zhao +6 more
doaj +1 more source