Experimental and numerical studies on the influence of formability of AISI 316L tailor-welded blanks at different weld line orientations

Kannan, A. Rajesh; Sankarapandian, S.; Pramod, R.; Shanmugam, N. Siva

doi:10.1007/s40430-021-02896-8

Cited by 12 publications

(3 citation statements)

References 47 publications

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“…However, due to the irrationality of the symmetry assumption and the oversimplification, the research and analysis scope is limited, and only the influence of process changes on the pipeline stress in a fixed cross-section can be obtained. This limitation makes it difficult to effectively guide the process optimization and stress and deformation control of conventional pipe fitting welding production [16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on Welding Residual Stress of 316L Stainless Steel Pipe

Jiang,

Wang,

et al. 2024

Materials

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316L stainless steel pipes are widely used in the storage and transportation of low-temperature media due to their excellent low-temperature mechanical properties and corrosion resistance. However, due to their low thermal conductivity and large coefficient of linear expansion, they often lead to significant welding residual tensile stress and thermal cracks in the weld seam. This also poses many challenges for their secure and reliable applications. In order to effectively control the crack defects caused by stress concentration near the heat-affected zone of the weld, this paper establishes a thermal elastoplastic three-dimensional finite element (FE) model, constructs a welding heat source, and simulates and studies the influence of process parameters on the residual stress around the pipeline circumference and axial direction in the heat-affected zone. Comparison and verification were conducted using simulation and experimental methods, respectively, proving the rationality of the finite element model establishment. The axial and circumferential residual stress distribution obtained by the simulation method did not have an average deviation of more than 30 MPa from the numerical values obtained by the experimental method. This study also considers the effects of welding energy, welding speed, and welding start position on the pipe’s circumferential and axial residual stress laws. The results indicate that changes in welding energy and welding speed have almost no effect on the longitudinal residual stress but have a more significant effect on the transverse residual stress. The maximum transverse residual stress is reached at a welding energy of 1007.4~859.3 J/mm and a welding speed of 6.6 mm/s. Various interlayer arc-striking deflection angles can impact the cyclic phase angle of the transverse residual stress distribution in the seam center, but they do not alter its cyclic pattern. They do influence the amplitude and distribution of the longitudinal residual stress along the circumference. The residual stress distribution on the surface of the pipe fitting is homogenized and improved at 120°.

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Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on Welding Residual Stress of 316L Stainless Steel Pipe

Jiang,

Wang,

et al. 2024

Materials

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“…Numerous exploration projects are underway in tailor-welded blanks for the benefits of various welding processes. Because of innovation is given by the application in marine, aerospace, railroad and transport industries [15][16][17]. Jagathesh et al investigated the AA2024 and AA6061 dissimilar weld joints using friction stir welding for aerospace, marine and automotive sectors.…”

Section: Introductionmentioning

confidence: 99%

Tensile, Impact and Non-Destructive Analysis of 316 L Stainless Steel for Marine Applications

Vinoth V,

Sathiyamurthy S,

Prabhakaran J

et al. 2023

JME

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Welding is an age-old method used for joining the metals permanently. The marine industry is a major user of sheet metal components that benefit from custom welded blanks (TWBs). These advantages encompass weight, cost, and noise savings, as well as increases in crash safety, improved efficacy, and oxidation resistance. However, machinability issues are prevalent as a result of the welding process. These benefits and drawbacks are explored, as well as TWB forming techniques, welding procedures, and materials utilized in the marine sector. In this study two different thickness 316L stainless steel grade plate welded using manual and automatic TIG Welding process. The process parameters are chosen for this study is welding current, voltage, welding speed, shielding gas & filler diameter. The manual TIG welded specimen was than compared with automatic TIG welded specimen in terms of Liquid Penetration test, tensile and impact test. The result and discussion are briefly explored.

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“…Corrosion-resistant austenitic chromium-nickel steels of the types have high corrosion resistance in many corrosive environments and are most widely used in industry due to the possibility of successful use in various operating conditions. They have high corrosion resistance in a number of liquid media, are resistant to intergranular corrosion after welding heating, relatively little embrittlement as a result of prolonged exposure to high temperatures and can be used as a heat-resistant material at temperatures of ~ 600 °C [1,2]. Being highly plastic in deep cold conditions, these steel is used in installations for the production of liquid oxygen, and also have excellent weldability.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Nature of Damage to Welded Flexible Compensating Elements Made of Austenitic Stainless Steels

Ivanov

Morgay

Lavrova

et al. 2022

SSP

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Welded flexible compensating elements made of austenitic stainless steels, such as metal hoses and bellows expansion joints, operate in a complex stress state; therefore, almost all corrosion damage of these products occurs in a stressed state. In addition, in welded joints, defects are possible associated with elastic-plastic deformations and stresses arising in the manufacturing process. Paper considers the defects of welded joints of multilayer bellows expansion joints made of stainless steels AISI 304 and AISI 316 types. The influence of the parameters of the argon tungsten electrode welding mode, with or without filler wire, on the mechanical characteristics of welded joints was studied. Mechanical tests of samples of welded joints were carried out on a tensile testing machine. The optimal range of variation of the parameters of the welding mode has been established, in which the plastic characteristics of the welded joints have maximum values. A metallographic study of the microstructure of welded joints of metal hoses and bellows expansion joints was carried out. The influence of the content of nonmetallic inclusions in the material of products on the conditions of melting and crystallization of the weld pool, contributing to the appearance of pores and hot cracks in the metal of the weld and the heat affected zone, has been established. To reduce the influence of the content of non-metallic inclusions in the weld metal and the heat-affected zone on the conditions of melting and crystallization of the weld pool, it is recommended to carry out preliminary heat treatment of the austenitic steel strip.

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Experimental and numerical studies on the influence of formability of AISI 316L tailor-welded blanks at different weld line orientations

Cited by 12 publications

References 47 publications

Effect of Process Parameters on Welding Residual Stress of 316L Stainless Steel Pipe

Effect of Process Parameters on Welding Residual Stress of 316L Stainless Steel Pipe

Tensile, Impact and Non-Destructive Analysis of 316 L Stainless Steel for Marine Applications

Investigation of the Nature of Damage to Welded Flexible Compensating Elements Made of Austenitic Stainless Steels

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