Controlling and Monitoring of Welding Parameters for Micro-Alloyed Steel Pipes Produced by High Frequency Electric Welding

2014 ◽  
Vol 1036 ◽  
pp. 464-469 ◽  
Author(s):  
Petru Simion ◽  
Vasile Dia ◽  
Bogdan Istrate ◽  
Corneliu Munteanu
Keyword(s):  
Efficient Method ◽  
High Frequency ◽  
Welding Process ◽  
Welding Parameters ◽  
Main Process ◽  
Electric Resistance ◽  
Electric Welding ◽  
Steel Pipes ◽  
Electric Resistance Welding ◽  
Micro Alloyed Steel

Manufacture of steel pipes micro-alloyed with Ti, V, Nb by high frequency electric resistance welding (HF-ERW) is a modern and efficient method, but requires a good knowledge and adjustment of various parameters influencing the welding process. This study aims to determine the influence of the main process parameters (electrical and mechanical) and establish correlations between them, in order to optimize the welding process. This was possible only by controlling and monitoring the welding parameters used and conducting experiments and tests on welded pipes in different conditions.

Using Taguchi Grey Relational Analysis Multi-Object of Process Parameters in Electric Resistance Welding of Wire to Recovery AISI1045 Steell Shaft

2021 ◽  
Vol 872 ◽  
pp. 39-44
Author(s):  
Minh Tan Nguyen ◽  
Van Thoai Le ◽  
Thanh Phu Nguyen ◽  
Van Nhat Nguyen
Keyword(s):  
Taguchi Method ◽  
Grey Relational Analysis ◽  
Welding Process ◽  
Resistance Welding ◽  
Welding Parameters ◽  
Electric Resistance ◽  
Welding Joint ◽  
Relational Analysis ◽  
Electric Resistance Welding ◽  
Grey Relational

This study focuses on the multi-objective optimization of the welding joint of AISI 1045 steel shafts with AISI 1070 filler wire 1.8 mm in diameter by electric resistance welding method. During the welding process, welding parameters input are important because it determines the quality of the welding joint. Therefore, in this study, Taguchi method was used in combination with grey relational analysis to select the welding parameters suitable for this welding process. The experiments were performed according to the orthogonal array L9 designed by the Taguchi method. The input welding mode parameters used in this study include welding current (Ih), force (F), welding speed (Vh). The output characteristics for the selected weld quality target are minimum tensile strength and micro hardness. Grey analyzes were conducted to optimize for the input parameters, the analysis results show that the set of input parameters suitable for the output quality are Ih = 7.5 KA; F = 1.7 KN; Vh = 1.5 cm/s. This is followed by the process of assessing the significance of the factors to all qualities of the welded joint using the ANOVA analysis process.

scholarly journals Mechanism of Grooving Corrosion Resistance in Cu-Ti Added High Frequency Electric Resistance Welded Steel Pipes

2000 ◽  
Vol 49 (3) ◽  
pp. 150-158 ◽  
Author(s):  
Takuya Hara ◽  
Ryuzi Uemori ◽  
Hiroshi Tamehiro ◽  
Chuichi Kato
Keyword(s):  
Corrosion Resistance ◽  
High Frequency ◽  
Electric Resistance ◽  
Welded Steel ◽  
Steel Pipes

Successive Strain Aging Effects on Member Strength and Ductility

1989 ◽  
Vol 4 (2) ◽  
pp. 81-88
Author(s):  
L.C. Schmidt ◽  
P.R. Morgan
Keyword(s):  
Strain Hardening ◽  
Strain Aging ◽  
Welding Process ◽  
Resistance Welding ◽  
Electric Resistance ◽  
Aging Effects ◽  
Secondary Importance ◽  
Cyclic Patterns ◽  
Electric Resistance Welding ◽  
Strength And Ductility

Tubular test specimens were fabricated by an electric resistance welding process from a rimmed steel with a low strain hardening ratio (1.16). These specimens were tested in tension with the purpose of highlighting the effects on member strength and ductility of successive cycles of straining and aging on the same specimen. The results from the various tests, which had different cyclic patterns, were used to indicate the importance of these effects. The overall effect is that successive straining and strain aging cycles incrementally increase strength and reduce ductility up to a limit. The pattern of the cycles is of secondary importance.

scholarly journals Technology and Properties of Peripheral Laser-Welded Micro-Joints

Materials ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3213
Author(s):  
Szymon Tofil ◽  
Hubert Danielewski ◽  
Grzegorz Witkowski ◽  
Krystian Mulczyk ◽  
Bogdan Antoszewski
Keyword(s):  
Dendritic Structure ◽  
Welding Process ◽  
Structure Characteristic ◽  
Welding Parameters ◽  
Steel Pipes ◽  
Beam Focusing ◽  
Joint Properties ◽  
Distribution Of Elements ◽  
316L Steel ◽  
Pulse Welding

This article presents the results of research on the technology and peripheral properties of laser-welded micro-couplings. The aim of this research was to determine the characteristics of properly made joints and to indicate the range of optimal parameters of the welding process. Thin-walled AISI 316L steel pipes with diameters of 1.5 and 2 mm used in medical equipment were tested. The micro-welding process was carried out on a SISMA LM-D210 Nd:YAG laser. The research methods used were macroscopic and microscopic analyses of the samples, and assessment of the distribution of elements in the weld, the distribution of microhardness and the tear strength of the joint. As a result of the tests, the following welding parameters are recommended: a pulse energy of 2.05 J, pulse duration of 4 ms and frequency of 2 Hz, beam focusing to a diameter of 0.4 mm and a rotation speed of 0.157 rad/s. In addition, the tests show good joint properties with a strength of more than 75% of the thinner pipe, uniform distribution of alloying elements and a complex dendritic structure characteristic of pulse welding.

scholarly journals Manufacture of alloy steel tube by high frequency electric resistance welding.

1986 ◽  
Vol 26 (5) ◽  
pp. 468-475 ◽  
Author(s):  
Hirohisa ICHIHARA ◽  
Daigo SUMIMOTO ◽  
Tsurugi KIMURA ◽  
Yasuo KIMIYA ◽  
Mitsuo YOSHIZAWA
Keyword(s):  
Alloy Steel ◽  
High Frequency ◽  
Steel Tube ◽  
Resistance Welding ◽  
Electric Resistance ◽  
Electric Resistance Welding

Simulation of Stress Field in High-Frequency Welded Pipe of Composite Aluminum Alloy

2017 ◽  
Vol 748 ◽  
pp. 259-263
Author(s):  
Zhi Wei Wang ◽  
Xuan Li ◽  
Hong Chen
Keyword(s):  
Finite Element ◽  
Aluminum Alloy ◽  
Tensile Stress ◽  
High Frequency ◽  
Weld Zone ◽  
Welding Process ◽  
Welding Parameters ◽  
Residual Tensile Stress ◽  
Element Analysis ◽  
Welded Pipe

Based on the finite element model of high frequency welded pipe welded of composite aluminum alloy, the stress-time variation curves of welded pipe in different welding parameters were obtained. The analysis shows that the residual tensile stress in the weld zone is largest. At the same time, the weld tensile test and hydrostatic burst test were conducted. When the residual tensile stress in the weld zone is high, the blasting pressure which the weld can withstand is small, and the cracking position is often in the welded seam zone. To a certain extent, the change of the thermal stress in the welding process and the residual stress in the cooling process can be accurately reflected by the finite element analysis method.

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