scholarly journals Exploration of Rotary Friction Welding Technique

2021 ◽  
Vol 71 (2) ◽  
pp. 53-60
Author(s):  
Chatha Jagjeet Singh ◽  
Kohli Prabhsharan Singh ◽  
Handa Amit
Keyword(s):  
Solid State ◽  
Welded Joints ◽  
Friction Welding ◽  
Welding Parameters ◽  
Welding Method ◽  
Rotary Friction Welding ◽  
Friction Pressure ◽  
Welding System ◽  
Welding Technique

Abstract Friction welding is a solid-state welding system which welds materials without authentic melting it. This study explores papers of different researchers on the friction welding method and it has been observed that the welding parameters like friction time; friction pressure, forge time and forge pressure highly affect properties of welded joints. The reason for this investigation is to exhort industry and the insightful world regarding advantages of revolving friction welding so the technique may be utilized in an ideal manner.

Influence of Rotary Friction Welding Parameters on Tensile Strength and Length of TMAZ of Dissimilar Welded Joints from 32G2 and 40KhN Steels

2021 ◽  
Vol 410 ◽  
pp. 299-305
Author(s):  
Artem S. Atamashkin ◽  
Elena Y. Priymak ◽  
Elena A. Kuzmina
Keyword(s):  
Tensile Strength ◽  
Base Metal ◽  
Process Parameters ◽  
Welded Joints ◽  
Friction Welding ◽  
Tensile Tests ◽  
Welding Parameters ◽  
Rotary Friction Welding ◽  
Study Results ◽  
Friction Pressure

In this work, pipe billets with a diameter of 73 mm and a wall thickness of 9 mm from steels 32G2 and 40KhN are friction welded with an aim to optimize the process parameters. The friction pressure, the forging pressure and the length of the fusion varied. After the implementation of various welding modes, tensile tests and metallographic studies were carried out. The optimal welding parameters have been established, which make it possible to obtain tensile strength at the level of the 32G2 base metal. The study results of the microstructure and SEM fractographs after the optimal welding mode are presented.

scholarly journals Influence of Friction Pressure at a Given Burn-off Length on the Mechanical and Microstructural Properties of Welded Joints from Medium-Carbon Alloyed Steels in Rotaty Friction Welding

2018 ◽  
Vol 7 (4.36) ◽  
pp. 978
Author(s):  
Elena Priymak ◽  
Nadezhda Firsova ◽  
Elena Bashirova ◽  
Svetlana Sergienko ◽  
Elena Kuzmina ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Welded Joints ◽  
Friction Welding ◽  
Thermal Deformation ◽  
Tensile Tests ◽  
Welding Parameters ◽  
Microstructural Properties ◽  
Medium Carbon ◽  
Friction Pressure ◽  
Mechanical And Microstructural Properties

This study investigates the influence of friction pressure at a given  burn-off length on the microhardness, tensile properties and microstructure of the welded joints from steel 32-2-Mn and 40-Cr-Ni. Phase transformations occurring in the materials to be welded as a result of thermal deformation effects are analyzed. The change in the length of the thermomechanical affected zone (TMAZ) depending on the friction pressure is shown. The results of the distribution of microhardness in the weld, clearly illustrating the formation of hardened and weakened areas. The results of tensile tests of welded joints are given. Analyzed the place of fracture at various welding parameters. The necessity of studying the distribution of internal residual stresses to explain the mechanism of fracture of welded joints is shown.  

Influence of the rotary friction welding parameters on the microhardness and joint strength of Ti6Al4V alloys

2020 ◽  
pp. 095440542097254
Author(s):  
Ho Thi My Nu ◽  
Nguyen Huu Loc ◽  
Luu Phuong Minh
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Friction Welding ◽  
Welded Joint ◽  
Welding Parameters ◽  
High Tensile Strength ◽  
Axial Pressure ◽  
Grain Structures ◽  
Rotary Friction Welding ◽  
Friction Pressure

In this study, Ti6Al4V rods were butt-welded by rotary friction welding. The experimental results show that the weld quality, in terms of the tensile strength and hardness, decreases radially. Therefore, the radius of the welded parts that are viable for rotating friction welding is limited because the areas located far from the centre of the axis have poor mechanical properties. The parameter that impacts the tensile strength and microhardness the most during rotary friction welding of Ti6Al4V is the axial pressure, which includes the friction pressure and forging pressure. A high forging pressure produces fine, equiaxed, and recrystallized grain structures in the welded joint, resulting in a high tensile strength and microhardness. In addition, an increased forging pressure can be used in rotary friction welding to reduce the radial differences in the mechanical properties of the welded joints.

scholarly journals The Optimum Process Parameter of Dissimilar Metal AA6061 – AISI304 Continuous Drive Friction Welding

2020 ◽  
Vol 55 (2) ◽  
Author(s):  
Totok Suwanda ◽  
Rudy Soenoko ◽  
Yudy Surya Irawan ◽  
Moch. Agus Choiron
Keyword(s):  
Tensile Strength ◽  
Response Surface ◽  
Process Parameters ◽  
Friction Welding ◽  
Welding Parameters ◽  
Optimum Process ◽  
Dissimilar Metals ◽  
Maximum Tensile Strength ◽  
Friction Pressure ◽  
Welding Processes

This article explains the use of the response surface method to produce the optimum tensile strength for the joining of dissimilar metals with the continuous drive friction welding method. The joining of dissimilar metals is one of the biggest challenges in providing industrial applications. Continuous drive friction welding has been extensively used as one of the important solid-state welding processes. In this study, the optimization of the friction welding process parameters is established to achieve the maximum tensile strength in AA6061 and AISI304 dissimilar joints via the response surface methodology. The effect of continuous drive friction welding parameters, which are friction pressure, friction time, upset pressure, and upset time, are investigated using response surface analysis. The design matrix factors are set as 27 experiments based on Box-Behnken. The 3D surface and the contour is plotted for this model to accomplish the tensile strength optimization. The optimization model of the tensile strength was verified by conducting experiments on the optimum values of the parameters based on the experimental data results. It can be denoted that the optimum process parameters settings were friction pressure = 25 MPa, friction time = 6 seconds, upset pressure = 140 MPa, and upset time = 8 seconds, which would result in a maximum tensile strength of 228.57 MPa.

scholarly journals Upset Prediction in Friction Welding Using Radial Basis Function Neural Network

2013 ◽  
Vol 2013 ◽  
pp. 1-9
Author(s):  
Wei Liu ◽  
Feifan Wang ◽  
Xiawei Yang ◽  
Wenya Li
Keyword(s):  
Neural Network ◽  
Finite Element ◽  
Radial Basis Function ◽  
Basis Function ◽  
Welded Joints ◽  
Friction Welding ◽  
Rbf Neural Network ◽  
Finite Element Simulations ◽  
Welding Parameters ◽  
Radial Basis

This paper addresses the upset prediction problem of friction welded joints. Based on finite element simulations of inertia friction welding (IFW), a radial basis function (RBF) neural network was developed initially to predict the final upset for a number of welding parameters. The predicted joint upset by the RBF neural network was compared to validated finite element simulations, producing an error of less than 8.16% which is reasonable. Furthermore, the effects of initial rotational speed and axial pressure on the upset were investigated in relation to energy conversion with the RBF neural network. The developed RBF neural network was also applied to linear friction welding (LFW) and continuous drive friction welding (CDFW). The correlation coefficients of RBF prediction for LFW and CDFW were 0.963 and 0.998, respectively, which further suggest that an RBF neural network is an effective method for upset prediction of friction welded joints.

scholarly journals Influence of welding method on microstructural creation of welded joints  

2011 ◽  
Vol 57 (Special Issue) ◽  
pp. S50-S56 ◽  
Author(s):  
P. Čičo ◽  
D. Kalincová ◽  
M. Kotus
Keyword(s):  
Welded Joints ◽  
Arc Welding ◽  
Welded Joint ◽  
Gas Metal Arc Welding ◽  
Structural Phase ◽  
Welding Parameters ◽  
Welding Method ◽  
Welding Technology ◽  
Metal Arc Welding

This paper is focused on the analysis of the welding technology influence on the microstructure production and quality of the welded joint. Steel of class STN 41 1375 was selected for the experiment, the samples were welded by arc welding including two methods: a manual one by coated electrode and gas metal arc welding method. Macro and microstructural analyses of the experimental welded joints confirmed that the welding parameters affected the welded joint structure in terms of the grain size and character of the structural phase.

Effect of friction welding parameters and heat treatment on the quality of welded joints in creep-resisting deformable nickel alloys

2012 ◽  
Vol 26 (9) ◽  
pp. 728-731 ◽  
Author(s):  
V. I. Lukin ◽  
V. G. Koval'chuk ◽  
M. L. Samorukov ◽  
Yu. M. Gridnev ◽  
I. P. Zhegina ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Welded Joints ◽  
Friction Welding ◽  
Nickel Alloys ◽  
Welding Parameters

scholarly journals Effect of Rotary Friction Welding Parameters on the Mechanical Behavior ABS/PE Polymers

2018 ◽  
Vol 7 (4) ◽  
pp. 104
Author(s):  
Gailan I. Hassan ◽  
Younis Kh. Khdir
Keyword(s):  
Tensile Strength ◽  
Friction Welding ◽  
Mechanical Energy ◽  
Acrylonitrile Butadiene Styrene ◽  
Processing Parameters ◽  
Welding Parameters ◽  
Chemical Formula ◽  
Dissimilar Joints ◽  
Rotary Friction Welding ◽  
Butadiene Styrene

This study deals with the Rotary Friction Welding, (RFW) as a variation of friction welding in which the energy required to make the weld is supplied primarily by the stored rotational kinetic energy of the welding machine. The mechanical energy generated in overcoming friction is continuously transformed into heat. In most circumstances the thermal energy generated is regarded as undesirable, but under controlled conditions it can be used to join materials, as in the case of rotary friction welding. In this paper, similar and dissimilar joints of Acrylonitrile butadiene styrene (ABS) (chemical formula (C8H8)x· (C4H6)y· (C3H3N)z) and Polyethylene (PE) or polyethene or poly(methylene)) are studied. The effects of different rotational rates, plunge depths, and traverse speeds on the microstructure and tensile strength of joints were investigated. Some defects such as pores and cracks were found at inappropriate processing parameters. The tensile test was carried out as the mechanical properties of joints. Different significant parameters were discussed. The maximal and minimal tensile strength indicated and evaluated.

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