Influence of process parameters on impact toughness and hardness of dissimilar AISI 4140 and AISI 304 continuous drive friction welds

Chander, GopiN; Reddy, G. Madhusudhan; Tagore, G.R.N.

doi:10.1007/s00170-012-4114-3

Cited by 16 publications

(7 citation statements)

References 10 publications

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“…This is one of the main reason why alloyed steels are more subjected to metal expulsion than plain and low carbon steels, welded in similar conditions. In this context, lower welding current, higher electrode force and welding times are usually required to widen welding range and to limit the effect of metal expulsion during the RSW of HSSs …”

Section: Introductionmentioning

confidence: 99%

Investigation on Resistance Spot Welding of TWIP Steel Sheets

Spena

Maddis

Lombardi

et al. 2015

steel research int.

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A widespread usage of new advanced high strength TWIP steels in the automotive industry is conditional on proper assembly operations by welding. Therefore, the effects of the main important process parameters on the mechanical and microstructural properties of resistance spot welded TWIP sheets are examined here. The welding parameters used were the welding current, clamping force, and welding time. An L‐9(33) orthogonally array was used to design the experimental tests. The mechanical response of the welded joints was assessed by tensile shear tests and Vickers microhardness measurements. The effects of the welding parameters on the fracture mode of the tensile shear specimens were also investigated. Some combinations of the welding process parameters guarantee acceptable tensile shear strengths for the automotive industry. The tensile shear samples mainly failed by interfacial fracture mode, while partial thickness with pull out fractures were observed in the samples when a high welding current and clamping force were used. Improper clamping force and welding current promoted excessive metal expulsions and, in turn, the formation of welding defects in the weld spots.

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Section: Introductionmentioning

confidence: 99%

Investigation on Resistance Spot Welding of TWIP Steel Sheets

Spena

Maddis

Lombardi

et al. 2015

steel research int.

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“…Also the stress increases with the increase in axial pressure up to 105 MPa pressure, a start declining with the further increases in pressure but the difference is marginal although there was drastic decline in the strain values, they marginally increase up to 105 MPa, reaches almost up to 0.01 at 135 MPa axial pressure. Minimum time has been taken by the machine to fracture the specimen welded at 1600 rpm and at 135 MPa axial pressure which was 11 s. This was due to that, under high friction force and high rotational speeds, peak temperatures are attained in very short time, compared to low friction force conditions (Chander et al 2012). Under these conditions higher heat input rates and low weld times results in the rapid cooling of the material.…”

Section: Tensile Testingmentioning

confidence: 99%

“…The growing availability of new materials and higher requirement being placed on materials creates a greater need for joints of dissimilar metals (Satyanarayana et al 2005). Dissimilar joints between austenitic stainless steel and low alloy steel are extensively used in many high temperature applications in the energy conversion system (Chander et al 2012). There is a comprehensive need for dissimilar metal joints in power plant components, due to the severe gradients in mechanical and thermal loading.…”

Section: Introductionmentioning

confidence: 99%

“…Thus it is difficult to obtain good quality weld joints using conventional welding techniques and some defects and intermetallic phases can occur during the process because of significant difference in mechanical and chemical properties (Kurt et al 2011). The specific problems associated with welding of austenitic stainless steel are formation of delta ferrite, sigma phase, stress corrosion cracking, and sensitization at the interface (Chander et al 2012). Friction welding is one such solid state welding process widely employed in such situations (Meshram et al 2008;Sathiya et al 2007).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of tensile strength and fracture behavior of friction welded dissimilar steels under different rotational speeds and axial pressures

Handa

Chawla²

2015

Sadhana

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In the present study an attempt was made to join austenitic stainless steel (AISI 304) with low alloy steel (AISI 1021) at five different rotational speeds ranging from 800 to 1600 rpm and at as many different axial pressures ranging from 75 MPa to 135 MPa and then determining the strength of the joint by means of tensile strength. Furthermore scanning electron microscope analysis was performed to evaluate the pattern of failure at the fractured locations, also the micro hardness was checked at the weld interface and at distances on either side of the weld joint to evaluate the effect of heat. The highest tensile strength achieved by the welded specimens was 1.8% higher than the AISI 1021 steel and the lowest tensile strength obtained was 20% lower than the parent AISI 1021.

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“…This method can also be used to join the different shapes like components of cylindrical or non-cylindrical workpieces. A lot of studies presented on friction welding of similar and dissimilar materials [4][5][6][7][8][9][10] ; however, study based on friction welding of dissimilar austenitic and ferritic stainless steel is scanty.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Mechanical Properties of Friction-welded AISI 304 with AISI 430 Dissimilar Steels

et al. 2019

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In this paper, standard SS304 austenitic stainless steel and SS430 ferritic steel cylindrical rods were fabricated by friction welding process by varying the frictional pressure and forge pressure in order to understand the effect of process parameter. The tensile strength and Vickers micro hardness tests were conducted for each fabricated joint to evaluate the mechanical properties of the welded specimen. It was found that sample S5 with friction pressure of 90 MPa and forging Pressure of 120 MPa has the high tensile strength value of 637 MPa and 372HV at the interface region. A detailed microstructural analysis was performed at the interface to reveal interconnecting of dissimilar metals.

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Influence of process parameters on impact toughness and hardness of dissimilar AISI 4140 and AISI 304 continuous drive friction welds

Cited by 16 publications

References 10 publications

Investigation on Resistance Spot Welding of TWIP Steel Sheets

Investigation on Resistance Spot Welding of TWIP Steel Sheets

Evaluation of tensile strength and fracture behavior of friction welded dissimilar steels under different rotational speeds and axial pressures

Investigation of Mechanical Properties of Friction-welded AISI 304 with AISI 430 Dissimilar Steels

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