Results 61 to 70 of about 344 (166)

RF characterization of 1.3 GHz one-cell Nb/Cu full-seamless cavities manufactured by hydroforming

Physical Review Accelerators and Beams
In this study, we employ hydroforming technology to develop a 1.3 GHz one-cell Nb/Cu full-seamless cavity to reduce cost and improve performance. Superconducting radiofrequency (SRF) cavities made of pure niobium are expensive because of the material’s ...
Masashi Yamanaka, Marco Garlaschè, Joanna Sylwia Swieszek, Guillaume Jonathan Rosaz, Hayato Araki, Kristof Brunner, Said Atieh, Carlota P. A. Carlos, Adrià Gallifa Terricabras, Valentin Giglia, Shinichi Iwamoto, Shinichiro Michizono, Yuya Nishi, Kazuki Nishimori, Walter Venturini Delsolaro, Akira Yamamoto   +15 more
doaj   +1 more source

Wrinkling of Toroidal Shells in Free Hydroforming

Journal of Marine Science and Engineering
In this study, we investigated toroidal shell wrinkling in free hydroforming. We specifically focused on toroidal shells with a regular hexagonal cross-section. Membrane theory was used to examine the distribution of stress and yield load in both preform
Xiaobin Liu, Jian Zhang, Ming Zhan, Xilu Zhao, Wenwei Wu, Kaiwei Xu   +5 more
doaj   +1 more source

The Forming Limit Diagram of 2A16 Aluminum Alloy Sheet Based on Hydraulic Bulging Test of Elliptical Die [PDF]

MATEC Web of Conferences
An elliptical die hydraulic bulging test was carried out to explore the forming performance of 2A16 aluminum alloy sheets during hydroforming. By using five groups of elliptical dies with ovality of 1.0, 0.9, 0.8, 0.6, and 0.4, the effects of different ...
Jiao Zhihui, Li Yong, Jiang Peicheng, Li Kui, Lang Lihui   +4 more
doaj   +1 more source

Fully hydroformed RF cavities [PDF]

Proceedings of the 1989 IEEE Particle Accelerator Conference, . 'Accelerator Science and Technology, 2003
Niobium-coated copper cavities are an attractive solution for RF superconducting structures. The copper parts are usually obtained by spinning and subsequent weldings. However, the defects of welded surfaces may create local coating problems. One way to minimize them is to hydroform monolithic cavities starting from OFHC (oxygen-free high-conductivity)
openaire   +1 more source

Springback Estimation in the Hydroforming Process of UNS A92024-T3 Aluminum Alloy by FEM Simulations

Metals, 2018
The production of metal parts manufactured through the hydroforming process is strongly affected by the difficulty in predicting the elastic recovery (springback) of the material. In addition, the formation of wrinkles and crack growth should be avoided.
Cristina Churiaque, Jose Maria Sánchez-Amaya, Francisco Caamaño, Juan Manuel Vazquez-Martinez, Javier Botana   +4 more
doaj   +1 more source

Finite Element Analysis and Experimental Study of Manufacturing Thin-Walled Five-Branched AISI 304 Stainless Steel Tubes with Different Diameters Using a Hydroforming Process. [PDF]

Materials (Basel), 2023
El-Aty AA, Xu Y, Xie W, Xia LL, Hou Y, Zhang S, Ahmed MMZ, Alzahrani B, Ali A, Huang X, Sobh AS.   +10 more
europepmc   +1 more source

Finite-element-analysis of connection strength of assembled camshafts with different cam-bore profiles using tube hydroforming technology. [PDF]

Sci Rep, 2023
Ma J, Jiang Z, Lei J, Huang J, Liu J, Yang L, Wang H, Rong J.   +7 more
europepmc   +1 more source

Computer Modeling of the Process for Manufacturing Spherical Vessels from Sheet Steel by Hydroforming

Journal of Mechanical Engineering
Reliable and safe operation of vessels filled with gas or liquid under high pressure requires compliance with certain requirements for their strength. It is also important to reduce weight and material consumption.
Pavlo P. Hontarovskyi, Natalia V. Smetankina, Nataliia H. Garmash, Iryna I. Melezhyk, Tetiana V. Protasova   +4 more
doaj   +1 more source

Friction Modelling for Tube Hydroforming Processes-A Numerical and Experimental Study with Different Viscosity Lubricants. [PDF]

Materials (Basel), 2022
Galdos L, Trinidad J, Otegi N, Garcia C.
europepmc   +1 more source

Effect of strain state on the surface roughening for hydroforming of aluminum alloy tube based on cross-scale numerical modeling

Journal of Materials Research and Technology
The complex deformation behavior would result in surface roughening such as orange peel defect during the hydroforming process of aluminum alloy tubular parts.
Shiqiang Zhu, Wentao Chen, Jie Zhao, Shijian Yuan   +3 more
doaj   +1 more source