Results 1 to 10 of about 2,667 (209)

Internal Hydroforming of Large Stainless-Steel Eggshells from Stepped Preforms

open access: yesMetals, 2023
The internal hydroforming of large stainless-steel eggshells from a stepped preform is investigated in this paper. The nominal major and minor axes of the eggshell were 1537 and 1070 mm, respectively.
Yinhui Tang   +5 more
doaj   +2 more sources

The optimization of a hydroformed tube [PDF]

open access: yesMATEC Web of Conferences, 2019
The shaping by hydroforming process involves several complex phenomena and presents several types of nonlinearities (geometric, material,...). The development of a hydroforming operation requires a lot of testing to determine with precision the optimum ...
Mohammed Nassraoui, Bouchaib Radi
doaj   +2 more sources

Less-loading hydroforming process for large-size hollow components of aluminum alloy

open access: yesJournal of Materials Research and Technology, 2021
To overcome the problem of welding distortion on conventional multiple segment structures, and the problem of requiring large-scale forming equipment and severe thinning occurs in high-pressure hydroforming process, a novel less-loading hydroforming ...
Xiao-Lei Cui   +4 more
doaj   +1 more source

Buckling of Hydroformed Toroidal Pressure Hulls with Octagonal Cross-Sections

open access: yesMetals, 2022
This paper is devoted to the hydroforming performances of toroidal pressure hulls with octagonal cross-sections, together with the buckling performances of hydroformed hulls.
Xiaobin Liu   +4 more
doaj   +1 more source

Repairing Damaged Screen Pipes with Tube Hydroforming: Experiments and Feasibility Analysis

open access: yesMachines, 2022
During oil-well production, there are often cracks, breaks, and perforation corrosion on the screen pipe that can significantly deteriorate sand control and pipe strength. To repair damaged screen pipes, we developed a technique originating from the tube
Shufeng Liu   +5 more
doaj   +1 more source

Deep octopod habitat in the western North Atlantic characterized by Standard Ecological Classification from videos

open access: yesEcosphere, Volume 14, Issue 12, December 2023., 2023
Abstract Habitat characterization is important to assess fully the niches of different organisms. There is a large knowledge gap regarding habitat use by deep‐sea benthic incirrate octopods, partly due to their assumed preference for hard‐to‐sample rocky substrata. This study uses observations from in situ videos recorded by remotely operated vehicles (
Abigail Pratt   +2 more
wiley   +1 more source

Effects of thermoforming operation and tooling on the thermoformability of plastic‐coated fibre‐based materials

open access: yesPackaging Technology and Science, Volume 36, Issue 10, Page 855-871, October 2023., 2023
This study evaluated the impact of the thermoforming process operation and tooling on the thermoformability of plastic‐coated paperboards. Design recommendations were provided for the future development of thermoforming lines, followed by guidelines for tooling design to improve the performance of materials.
Sanaz Afshariantorghabeh   +3 more
wiley   +1 more source

Hydroforming of elliptical cavities [PDF]

open access: yesPhysical Review Special Topics - Accelerators and Beams, 2015
Activities of the past several years in developing the technique of forming seamless (weldless) cavity cells by hydroforming are summarized. An overview of the technique developed at DESY for the fabrication of single cells and multicells of the TESLA cavity shape is given and the major rf results are presented.
Singer, W.   +3 more
openaire   +3 more sources

Hot Sheet Metal Forming Strategies for High‐Strength Aluminum Alloys: A Review—Fundamentals and Applications

open access: yesAdvanced Engineering Materials, Volume 25, Issue 16, August 2023., 2023
Following an overview on the metallurgical background of aluminum alloys, this article reviews recent developments in forming processes for aluminum alloys. The focus is on process variants at room temperature and at higher temperatures and on a new hot forming technique promising considerable improvements in formability.
Emad Scharifi   +5 more
wiley   +1 more source

Ceramic Open Cell Foams Featuring Plasmonic Hybrid Metal Nanoparticles for In Situ SERS Monitoring of Catalytic Reactions

open access: yesAdvanced Materials Interfaces, Volume 10, Issue 18, June 27, 2023., 2023
Ceramic open cell foams coated with bifunctional hybrid metallic nanoparticles are designed for real‐time and sensitive in situ catalytic reaction monitoring via surface‐enhanced Raman scattering and tested with the reduction of 4‐nitrothiophenol to 4‐aminothiophenol.
Tongwei Guo   +3 more
wiley   +1 more source

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