Results 41 to 50 of about 309,917 (203)

Cyclic plastic behavior and springback prediction of QP980 high strength steel in roll forming

Cailiao gongcheng
In the roll forming， the sheet metal will experience multiple bending processes. The nonlinear hardening behavior and cyclic plastic behavior of high strength steel during multiple bending deformation， such as Bauschinger effect and cyclic hardening ...
HAN Fei, MU Sichao, LI Shu
doaj   +1 more source

Evidence for parallel elongated structures in the mesosphere [PDF]

, 1983
The physical cause of partial reflection from the mesosphere is of interest. Data are presented from an image-forming radar at Brighton, Colorado, that suggest that some of the radar scattering is caused by parallel elongated structures lying almost ...
Adams, G. W., Brosnahan, J. W., Walden, D. C.   +2 more
core   +1 more source

The Mechanism of Forming Hollow Shafts with Constant Wall Thickness by Three-Roll Skew Rolling

Metals
To solve the problem of the long forming process for hollow shafts with constant wall thickness (HSCWT), a new process for forming HSCWT, namely three-roll skew rolling, has been proposed.
Song Zhang, Xuedao Shu, Jitai Wang, Zixuan Li, Haijie Xu, Yingxiang Xia, Zbigniew Pater, Janusz Tomczak, Tomasz Bulzak   +8 more
doaj   +1 more source

Electromagnetic Forming of Longitudinal Strengthening Ribs in Roll Formed Automotive Profiles [PDF]

, 2010
In the automotive industry, increasing ecological concerns and demands for higher performance have become lightweight construction a key aspect. Due to the gradual introduction of high strength materials on the one side, and greater consideration with ...
Eguia, I., Gutiérrez, Ma. A., Iturbe, R., Mangas, A.   +3 more
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Modern methods of roll bending [PDF]

, 2009
Projekt vypracovaný v rámci bakalářského studia B2339-00 Strojní inženýrství předkládá přehled moderních metod zakružování. Na základě literární studie problematiky plošného tváření a internetového průzkumu je v práci představena problematika zakružování,
Fišar, Luboš
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RESEARCH ON THE IMPACT OF FRICTION COEFFICIENT TO SCALE IN COLD ROLL-BEATING FORMING

Jixie qiangdu, 2017
Scale of forming surface in cold roll-beating forming process is a major defect. Controlling scaly defects is an important method to improve forming surface quality.
FENG JingMin, LI Yan, YANG MingShun, LIANG XiaoMing   +3 more
doaj  

Study on roll-cutting forming method of conical end blank for cross wedge rolling (CWR) without stub bar

Metalurgija, 2020
Using conical end blanks is an effective method to improve the concave defects of cross wedge rolling, while the common method to get conical end blanks is machining, still causing material loss.
R. Wang, Y. Wang, H. Wang, J. Y. Chen, X. D. Shu   +4 more
doaj  

Development of a beam builder for automatic fabrication of large composite space structures [PDF]

The composite material beam builder which will produce triangular beams from pre-consolidated graphite/glass/thermoplastic composite material through automated mechanical processes is presented, side member storage, feed and positioning, ultrasonic ...
Bodle, J. G.
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FEM analysis of forming roll in railway-wheel mill [PDF]

, 2008
В работе проработаны некоторые методические аспекты расчёта напряжённо-деформированного состояния и анализа прочностных характеристик наклонного валка колёсопрокатного стана с применением CAE-системы ANSYS.
Juravlev, E. Yu., Ogorodnikova, O. M., Журавлев, Э. Ю., Огородникова, О. М.   +3 more
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Effect of hot forming temperature on the microstructure and mechanical properties of high strength square tubes

工程科学学报, 2016
To overcome the challenge of traditional roll forming process and equipment on high strength square tubes at room temperature,hot roll forming process using local induction heating was proposed to produce high strength square tubes.A series of tests ...
PENG Xue-feng, HAN Jing-tao, YAN Pei-jie, WANG Yu   +3 more
doaj   +1 more source