Experimental investigation of the formability of heat treated AA6063 tubes using hydraulic rotary draw bending process

Authors

1 Associate Professor, Mechanical Engineering Department, Babol Noshirvani University of Technology, Babol, Iran

2 Mechanical Engineering Department, Sirjan University of Technology, Sirjan, Iran

3 Assist. Prof., Mechanical Engineering Department, Semnan University, Semnan, Iran

4 Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran.

Abstract

In this paper, the formability behavior of thin-walled aluminum tubes has been experimentally investigated using the hydraulic rotary draw bending process. At first, AA6063 tubes with a ratio of diameter to thickness of 13.88, outer diameter of 25 mm, and thickness of 1.8 mm were subjected to heat treatment operations; annealing and artificial aging. Then, bending experiments were carried out on as-received and heat-treated samples at fluid pressures of 0, 1, 1.8, 3.2, and 3.6 MPa. After performing the experiments, the amount of thinning and thickening of the bent tubes were measured. By examining the results, it was found that for all samples, the maximum thinning and thickening occur at an angle of 40 degrees to the pressure die. Also, the examination of the formability results of the tubes demonstrated that the heat treatment and the fluid pressure have interaction effects, so the effect of the heat treatment is not very noticeable at the fluid pressure of 0 MPa, but the effect of the heat treatment is remarkable at the maximum fluid pressure of 36 MPa. At maximum fluid pressure, aging heat treatment reduces thinning by 7% and annealing heat treatment increases thinning by 13% compared to the as-received sample. In addition, in comparison to the as-received sample, the thickening of aged tubes increases by 5% and decreases by 16%, respectively.

Keywords

Main Subjects


[1] Imhan KI, Baharudin BT, Zakaria A, Ismail MI, Alsabti NM, Ahmad AK (2017) Investigation of material specifications changes during laser tube bending and its influence on the modification and optimization of analytical modeling. Opt & Las Tech 95:151-156.
[2] Modanloo V, Elyasi M, Talebi Ghadikolaee H, Ahmadi Khatir F, Akhoundi B (2023) The use of MCDM techniques to assess fluid pressure on the bending quality of AA6063 heat-treated tubes. J Eng Res.
[3] Razali NA, Chung SH, Chung WJ, Joun MS (2022) Implicit elastoplastic finite element analysis of tube-bending with an emphasis on springback prediction. The Int J Adv Manu Tech 120(9-10):6377-6391.
[4] Nakajima K, Utsumi N, Yoshida M (2013) Suppressing method of the cross section deformation for extruded square tubes in press bending. Int J Prec Eng and Manu 14:965-970.
[5] Song HW, Xie W, Zhang SH, Jiang W, Lăzărescu L, Banabic D (2021) Granular media filler assisted push bending method of thin-walled tubes with small bending radius. Int J Mech Sci 198:106365.
[6] Wang A, Xue H, Saud S, Yang Y, Wei Y (2019) Improvement of springback prediction accuracy for Z-section profiles in four-roll bending process considering neutral layer shift. J Manu Proc 48:218-227.
[7] Safari M (2020) A study on the laser tube bending process: Effects of the irradiating length and the number of irradiating passes. Iran J Mater Form 7(1):46-53.
[8] Garcia PS, Pardal JM, Tavares SS, de Souza LR, Meireles AM, Souza MC, Areiza MC, de Brito Martins TR (2022) Induction bending effects on mechanical properties and corrosion resistance of duplex stainless steel UNS S31803 pipes. The Int J Adv Manu Tech 121(11-12):8329-8340.
[9] Safdarian R (2019) Failure prediction of superheater tubes in rotary tube bending process using GTN damage model. Trans the India Inst Met 72(2):475-486.
[10] Elyasi M, Paluch M, Hosseinzadeh M (2017) Predicting the bending limit of AA8112 tubes using necking criterion in manufacturing of bent tubes. The Int J Adv Manu Tech 88:3307-3318.
[11] Zardoshtian A, Sabet H, Elyasi M (2018) Improvement of the rotary draw bending process in rectangular tubes by using internal fluid pressure. The Int J Adv Manu Tech 95:697-705.
[12] Roein M, Elyasi M, Mirnia MJ (2021) Introduction of a new method for bending of AISI 304L stainless steel micro-tubes with micro-wire mandrel. J Manu Proc 66:27-38.
[13] Vesenjak M, Duarte I, Baumeister J, Göhler H, Krstulović-Opara L, Ren Z (2020) Bending performance evaluation of aluminium alloy tubes filled with different cellular metal cores. Comp Struc 234:111748.
[14] Baghdadi AH, Rajabi A, Selamat NF, Sajuri Z, Omar MZ (2019) Effect of post-weld heat treatment on the mechanical behavior and dislocation density of friction stir welded Al6061. Mater Sci and Eng: A 754:728-734.
[15] Baruah M, Borah A (2020) Processing and precipitation strengthening of 6xxx series aluminium alloys: A review. Int J Mater Sci 1(1):40-48.
[16] Fiocchi J, Tuissi A, Biffi CA (2021) Heat treatment of aluminium alloys produced by laser powder bed fusion: A review. Mater & Des 204:109651.
[17] Hua L, Hu X, Han X (2020) Microstructure evolution of annealed 7075 aluminum alloy and its influence on room-temperature plasticity. Mater & Des 196:109192.
[18] Emadi M, Beheshti H, Heidari-Rarani M, Aboutalebi FH (2019) Experimental study of collapse mode and crashworthiness response of tempered and annealed aluminum tubes under axial compression. J Mech Sci and Tech 33:2067-2074.
[19] Reza-E-Rabby M, Wang T, Canfield N, Roosendaal T, Taysom BS, Graff D, Herling D, Whalen S (2022) Effect of various post-extrusion tempering on performance of AA2024 tubes fabricated by shear assisted processing and extrusion. CIRP J Manu Sci and Tech 37:454-463.
[20] Zhang L, Li K, He H, Li LX (2021) Influence of prolonged natural aging followed by artificial aging on tensile properties and compressive behavior of a thin-walled 6005 aluminum alloy tube. J Centr South Uni 28(9):2647-2659.
[21] Taghizadeh Rami F, Elyasi M (2022) Improvement of rotary draw bending of commercial pure titanium tubes with resistance deformation and using steel ball. Modares Mech Eng 22(6):371-380.
[22] Ashtiani HR, Moghaddam S (2022) Experimental and Numerical Investigation on the Heat Treatment Effects of AA6063 Aluminum Alloy Tubes during Rotary Draw Bending. Iran J Mater Sci and Eng 19(1):1-14.
 
[23] Elyasi M, Modanloo V, Talebi Ghadikolaee H, Ahmadi Khatir F, Akhoundi B (2023) Investigating the effect of heat treatment in hydraulic rotary draw bending of AA6063 tubes. Modares Mech Eng 23(4):257-264.
[24] Tronvoll SA, Ma J, Welo T (2023) Deformation behavior in tube bending: a comparative study of compression bending and rotary draw bending. The International J Adv Manu Tech 124(3-4):801-816.
[25] Sert A, Gürgen S, Çelik ON, Kuşhan MC (2017) Effect of heat treatment on the bending behavior of aluminum alloy tubes. J Mech Sci and Tech 31:5273-5278.
[26] Aryayi M, Basti A (2018) An overview of the role of effective parameters on the tube rotary draw bending. Mech Eng 27(1):7-14.
[27] Sun H, Li H, Gong F, Liu Y, Li G, Fu M (2022) Filler parameters affected wrinkling behavior of aluminum alloy double-layered gap tube in rotary draw bending process. The International J Adv Manu Tech :1-6.
[28] Radyantho KD, Londen BI, Febritasari R (2021) Experimental study of Mandrel’s effect on rotary draw bending process of aluminium 6061 pipe. InAIP Conf Proc 2384(1):060005.
[29] Soleimani J, Elyasi M, Hosseinzadeh M (2018) An analytical model and numerical simulations to predict process parameters in the tube bending under internal fluid pressure. Amirkabir J Mech Eng 50(3):447-466.