Results 11 to 20 of about 14,721 (265)
Rotary-draw-bending using tools with reduced geometries
Procedia Manufacturing, 2018 Abstract The tool sets of rotary-draw-bending are designed according to the geometries of the semi-finished product and the desired bending geometries. For more flexibility, the geometries of the tools must be simplified. Based on the distributions of contact normal stresses determined in finite element simulations, a method to simplify the tools ...
Christopher Heftrich +2 more
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Bending behaviors of large diameter thin-walled CP-Ti tube in rotary draw bending
Progress in Natural Science: Materials International, 2011 AbstractThe rotary draw bending(RDB) of large diameter thin-walled (LDTW) tube needs the strict cooperation of multiple processing parameters to avoid possible multiple defects. Due to the specific properties, the bending behaviors of LDTW commercial pure titanium (CP-Ti) tube are much more complex to achieve precise deformation. With the CP-Ti tube of
ZHANG, Zhi-yong +4 more
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In situ detection and control of wrinkle formation during rotary draw bending
Procedia Manufacturing, 2020 Abstract Rotary draw bending (RDB) is a profile bending process which is preferably used for small wall thicknesses and small bending radii. The limits of the process are cracking on the outside of the arch and wrinkle formation on the inside of the arch. Cracking is predicted by comparing the calculated strains with a forming limit curve.
Linda Borchmann +2 more
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Influence of the stiffness of machine axes on the formation of wrinkles during rotary draw bending
SN Applied Sciences, 2020 This study presents that finite element (FE) simulations of rotary draw bending are improved by taking into account the stiffnesses of the machine axes.
Linda Borchmann +2 more
doaj +1 more source
Experimental and Numerical Investigation on the Heat Treatment Effects of AA6063 Aluminum Alloy Tubes During Rotary Draw Bending [PDF]
Iranian Journal of Materials Science and Engineering, 2022 In this study, the effects of heat treatment of aluminum alloy on the tube bending process were investigated in the rotary draw bending process. As two experimental and numerical simulation methods were used to determine the wall-thinning, ovality, and ...
Hamid Reza Rezaei Ashtiani +1 more
doaj
The way forward in rotary draw bending: a review
, 2023 Presently, Rotary Draw Bending (RDB) process is one of the most common tube bending techniques used in industrial production around the world. The process is executed on a specially designed machine being fitted with specific forming tools. The quality of final products in RDB largely depends on process parameters being selected by the machine operator.
Kaleem, Muhammad Ali +3 more
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Improving Rotary Draw Bending Process by Changing a Geometry of the Pressure Bar [PDF]
Manufacturing Technology, 2021 The paper is focused on an analysis and optimization of the rotary draw bending process to eliminate bent tube ovality by modification of the pressure die geometry. The bending process is realized on Wafios CNC bending machine. A tube that is bent for an automotive application is made of 34MnB5 steel.
Jan Řiháček +2 more
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Materials Research Express, 2020 In order to satisfy the further improvement of new communication equipment, filling the ridge grooves on side walls with fillers is the effective method to improve the quality of double-ridged rectangular bent tube in H-typed rotary draw bending. However,
Chunmei Liu, Yuli Liu
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Analysis of Springback in Rotary Draw Bending Process: Numerical Modelling with Experimental Validation [PDF]
MATEC Web of ConferencesTubular components are widely used in aerospace and automotive industries due to their high strength, rigidity, energy absorption and light weight. Among tube bending techniques, Rotary Draw Bending (RDB) is the most industrially adopted due to its ...
Amaral Rui L. +5 more
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Analytical modeling and vibration analysis of partially cracked rectangular plates with different boundary conditions and loading [PDF]
, 2008 This study proposes an analytical model for vibrations in a cracked rectangular plate as one of the results from a program of research on vibration based damage detection in aircraft panel structures.
Arkadiusz Żak +32 more
core +1 more source