Effect of heat treatment of preform on the mechanical properties of flow formed AISI 4130 Steel Tubes—a theoretical and experimental assessment

Rajan, K. M.; Deshpande, P.U; Narasimhan, K.

doi:10.1016/s0924-0136(02)00305-9

Cited by 49 publications

(33 citation statements)

References 10 publications

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“…They propose an ideal combined heat treatment cycle, based on ideal combination of strength and toughness. [10] agree with the previous statement, including normalizing in the tested heat treatments for steels. The annealing improves steel formability and decreases working stresses and forces but do not provide enough tensile strength to final part, differently from other hardening treatments.…”

Section: Mechanics Of Flow Formingsupporting

confidence: 90%

“…[9] investigate the insurgence of defects in flow forming steel tubes production. [10] perform different test on flow formed pressure vessels in AISI 4130 steel in order to evaluate the effect of the heat treatments. [11] investigate the cracks propagation mechanism for Niobium alloys.…”

Section: Investigative Methodologiesmentioning

confidence: 99%

“…Generally, increasing carbon content and increasing amount of alloying elements decrease spinnability as well as inclusion and precipitates. Generally, low carbon alloys should not be used [10]. For hard to deform material, [6] notice no valuable changes in the micro-hardness, for dissimilar reductions ratio.…”

Section: Mechanics Of Flow Formingmentioning

confidence: 99%

See 2 more Smart Citations

A Review of Flow Forming Processes and Mechanisms

Marini

Cunningham²,

Corney

2015

KEM

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Abstract. After years of purely academic interest and niche applications, today the flow forming process is increasing demand in aerospace, automotive and defense industries. This review surveys academic paper of last fifty years, in order to evaluate the current state-of-the-art for academic and practitioner. Theoretical and experimental approaches are collected and compared by evaluating their prediction models. As a result, several knowledge gaps are identified, for example stress and strain tensors evolutions are not determined for workpiece, due to high computational cost and uncertainty about the correct finite elements approach to adopt. Similarly although, the final microstructure is often evaluated for specific cases, study of its evolution during plastic deformation has not been reported. Residual stress and final material proprieties, such as corrosion behavior, have been not studied numerically or experimentally. Tool path impact and alternative geometries are not deeply explored. Particular attention is given to process experimental optimization and characterization through Design of Experiment, which is still limited to a few papers and sometimes not well developed. The results of this review will help define a research agenda for future developments.

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Section: Mechanics Of Flow Formingsupporting

confidence: 90%

Section: Investigative Methodologiesmentioning

confidence: 99%

See 1 more Smart Citation

A Review of Flow Forming Processes and Mechanisms

Marini

Cunningham²,

Corney

2015

KEM

View full text Add to dashboard Cite

show abstract

“…Several researches on the 4130 steel have been done 13–15. Some mechanical behaviors of 4130 steel have been investigated in different researches but hot deformation behavior of this alloy has not been studied yet.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Mechanical Characteristics in Hot Deformation of 4130 Steel

Sajadifar

Ketabchi

Nourani

2011

steel research int.

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In this investigation, hot compression tests were performed at 900 °C − 1100 °C and strain rate of 0.001 − 0.1 s−1 to study hot deformation behavior and flow stress model of 4130 steel. Based on the classical stress–dislocation relations and the kinematics of the dynamic recrystallization, the flow stress constitutive equations of the work hardening‐dynamical recovery period and dynamical recrystallization period were established for 4130 steel, respectively. The validity of the model was demonstrated by comparing the experimental data with the numerical results. The agreement of this comparison is quite reasonable.

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“…K.M. Rajan and K. Narasimhan [8] presented effect of heat treatment of preform material on the mechanical properties of the flow formed part and the validity of using empirical relations in predicting the properties of the flow formed components.…”

Section: Introductionmentioning

confidence: 99%

Investigation of effective parameters on surface roughness in thermomechanical tube spinning process

Fazeli

Ghoreishi

2009

Int J Mater Form

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Tube spinning process is recognized as an effective process for fabricating of thin wall cylindrical parts, with precision tolerances, high surface quality and desired mechanical property. In this research, the influences of major parameters of thermomechanical tube spinning process such as preform thickness, percentage of thickness reduction, mandrel rotational speed, feed rate of rollers, solution treatment time and aging treatment time on surface roughness for fabricating of 2024 aluminum spun tubes using design of experiments are studied. Experimental data are analyzed by analysis of variance (Anova) and empirical models of surface roughnesses are developed. It is found that deeper percentage of thickness reduction with thicker preform thickness, slower feed rate of rollers and mandrel rotational speed and higher solution treatment time and aging treatment time are advantageous for obtaining smoother surface.

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Effect of heat treatment of preform on the mechanical properties of flow formed AISI 4130 Steel Tubes—a theoretical and experimental assessment

Cited by 49 publications

References 10 publications

A Review of Flow Forming Processes and Mechanisms

A Review of Flow Forming Processes and Mechanisms

Modeling of Mechanical Characteristics in Hot Deformation of 4130 Steel

Investigation of effective parameters on surface roughness in thermomechanical tube spinning process

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