Results 1 to 10 of about 996,801 (261)

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

open access: yesMaterials (Basel), 2022
The final quality of sheet and tube metal–formed components strongly depends on the tribology and friction conditions between the tools and the material to be formed.
Galdos L, Trinidad J, Otegi N, Garcia C.
europepmc   +2 more sources

A New Semi-Analytical Solution for an Arbitrary Hardening Law and Its Application to Tube Hydroforming. [PDF]

open access: yesMaterials (Basel), 2022
The present study consists of two parts. The first part supplies an exact semi-analytical solution for a general model of rigid plastic strain hardening material at large strains. The second part applies this solution to tube hydroforming design.
Strashnov S, Alexandrov S, Lang L.
europepmc   +2 more sources

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   +2 more sources

Improvement of Formability in Parallel Double-Branched Tube Hydroforming Combined with Pre-Forming and Crushing Processes. [PDF]

open access: yesMaterials (Basel)
In hydroforming of parallel double-branch tubes, the material entering the branch zone is obstructed by material accumulation in the main tubes and corners, which decreases the branch height.
Chen M   +10 more
europepmc   +2 more sources

Predicting the forming limits in the tube hydroforming process by coupling the cyclic plasticity model with ductile fracture criteria

open access: yesJournal of Materials Research and Technology, 2023
This study presents a one-surface plasticity constitutive model combined with phenomenological and micromechanical damage models to be applied to the large plastic deformation during tube hydroforming.
Chunmei Liu   +8 more
doaj   +2 more sources

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

open access: yesScientific Reports, 2023
The assembled camshaft is a novel manufacturing product which connects the cam and the mandrel by tube hydroforming (THF) technology after they are processed separately.
Jianping Ma   +7 more
doaj   +2 more sources

Numerical Optimization of the Blank Dimensions in Tube Hydroforming Using Line-Search and Bisection Methods. [PDF]

open access: yesMaterials (Basel), 2020
The change from a consolidated manufacturing practice to a new solution is often a complex problem because of the operative limits of technologies and the strict constraints of industrial parts.
Fiorentino A   +3 more
europepmc   +2 more sources

Improving Material Formability and Tribological Conditions through Dual-Pressure Tube Hydroforming

open access: yesJournal of Manufacturing and Materials Processing, 2023
Dual-pressure tube hydroforming (THF) is a tube-forming process that involves applying fluid pressure to a tube’s inner and outer surfaces to achieve deformation.
Gracious Ngaile, Mauricio Avila
doaj   +2 more sources

Movable Die and Loading Path Design in Tube Hydroforming of Irregular Bellows

open access: yesMetals, 2020
Manufacturing of irregular bellows with small corner radii and sharp angles is a challenge in tube hydroforming processes. Design of movable dies with an appropriate loading path is an alternative solution to obtain products with required geometrical and
Yeong-Maw Hwang, Yau-Jiun Tsai
doaj   +2 more sources

A new method to produce T-shaped tubular fittings with experimental and simulation results. [PDF]

open access: yesPLoS ONE, 2019
A tube is an important structural element for fluid manipulation in piped networks in many industries. Tube branching is achieved using tube fittings of various shapes, including T, Y, X, and L shapes.
Atef M Ghaleb   +5 more
doaj   +2 more sources

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