Experimental study on the effect of dies on wall thickness distribution in NC bending of thin-walled rectangular 3A21 aluminum alloy tube

2013 ◽  
Vol 68 (5-8) ◽  
pp. 1867-1874 ◽  
Author(s):  
Kuanxin Liu ◽  
Yuli Liu ◽  
He Yang
2020 ◽  
Vol 4 (2) ◽  
pp. 56 ◽  
Author(s):  
Ali Talebi-Anaraki ◽  
Mehdi Chougan ◽  
Mohsen Loh-Mousavi ◽  
Tomoyoshi Maeno

Hot metal gas forming (HMGF) is a desirable way for the automotive industry to produce complex metallic parts with poor formability, such as aluminum alloys. A simple hot gas forming method was developed to form aluminum alloy tubes using flame heating. An aluminum alloy tube was heated by a flame torch while the tube was rotated and compressed using a lathe machine and simultaneously pressurized with a constant air pressure. The effects of the internal pressure and axial feeding on expansion and wall thickness distribution were examined. The results showed that the proposed gas forming method was effective for forming aluminum alloy tubes. It was also indicated that axial feeding is a vital parameter to prevent reductions in wall thickness by supplying the material flow during the forming process.


2014 ◽  
Vol 722 ◽  
pp. 50-55
Author(s):  
Bao Peng Bi ◽  
Yong Wang ◽  
Radik R. Mulyukov ◽  
M.V. Markushev

Based on Backofen constitutive equation of 5A06 aluminum alloy at high temperature tensile test, get 5A06 aluminum alloy best superplastic constitutive equation parameters: when T= 400°C,m=0.39, K=270.34.5A06-O aluminum alloy cup gas bulging forming process is simulated with using the method of MARC finite element analysis .By designing a variety of shapes of bilge preform die, to align the bulging parts first post mode when carries on the different effects of the thinning deformation, and analyzes its influence on cup final thickness distribution of the rule.The superplastic test and positive and negative bulging simulation study results of 5A06-O aluminium alloy plate for commercial supply condition (the original thickness of 2 mm) show that the optimized blow the thinning deformation is greatly improve the cylindrical pieces of the final wall thickness distribution, the most in thin wall thickness from the simple was blowing bulging of increased by 0.94 mm, 0.65 mm Wall thickness distribution index is 0.079.


2013 ◽  
Vol 26 (1) ◽  
pp. 230-241 ◽  
Author(s):  
Li Heng ◽  
Yang He ◽  
Zhang Zhiyong ◽  
Wang Zekang

2017 ◽  
Vol 11 (3) ◽  
pp. 139-142
Author(s):  
Sencer Karabeyoglu ◽  
Olcay Ekşi ◽  
Ertuğrul Erdoğan

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