Analysis of Deformation and Damage Evolution in Hot Elongation Forging

Kukuryk, M.

doi:10.2478/v10172-012-0041-4

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…As can be seen from the Figure 3, the elongated black lines are found in the microstructure. Obviously pearlitic lines are elongated in this case [12].…”

Section: Discussionmentioning

confidence: 81%

Development of technology for production of hot forged brackets made of S355 J2 +(N) steel bars

Cvetkovski¹

2016

Metall Mater Eng

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Preliminary investigation of forged brackets produced of S355 J2+(N) steel is presented in this research work. Performed investigation was intended to approve predicted production technology. First, all stages in the complex production process chain were defined, starting from the construction of the forging die, heating of the pieces of raw material, preforming, forging of the piece, frying and stress relieving. Confirmation of the proposed production parameters was performed with an application of appropriate computer program DEFORM F3 Ver10. After performing the forging process, mechanical and microstructural investigations of the produced forging parts were done. These investigations confirmed that preliminary proposed forging process meets all requirements concerning quality of the forged brackets. It means that undesirable forging defects were not detected and mechanical properties (tensile strength and hardness) of the forgings are in accordance with standard requirements.

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“…As can be seen from the Figure 3, the elongated black lines are found in the microstructure. Obviously pearlitic lines are elongated in this case [12].…”

Section: Discussionmentioning

confidence: 81%

Development of technology for production of hot forged brackets made of S355 J2 +(N) steel bars

Cvetkovski¹

2016

Metall Mater Eng

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“…The following constant parameters were introduced to the dynamic simulation of the hydraulic forging press: m = 90,000 kg, b = 25,000 Nsm -1 , Ft = 200,000 N, pSmax = 32 MPaD1 = 0.6 m, D2 = 0.5 m, Avimax = 0,01 m 2 , K = 2,210 9 Pa, V10 = 0.3 m 3 , kw1 = 810 -13 m 3 s -1 Pa -1 , kw2 = 1410 -14 m 3 s -1 Pa -1 , V20 = 0.1 m 3 . Simulation tests were carried out for single-pass forging, during which the forging height is reduced by Δh = h0-h1 = 0.1 m. The characteristics of the degree of opening of the directional control valve are shown in Figure 8.…”

Section: Elementmentioning

confidence: 99%

“…Ref. [3] describes the analysis of the three-dimensional stress and strain state for the process of elongation forging of X37CrMoV51 die steel using the finite element method. Ref.…”

Section: Introductionmentioning

confidence: 99%

Energy-Saving Hot Open Die Forging Process of Heavy Steel Forgings on an Industrial Hydraulic Forging Press

Dindorf

Woś

2020

Energies

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The study deals with the energy-saving process of hot open die elongation forging of heavy steel forgings on an 80 MN industrial hydraulic forging press. Three innovative energy-saving power supply solutions useful for industrial hydraulic forging presses were analyzsed. The energy-saving power supply of hydraulic forging presses consists in reducing electricity consumption by the electric motor driving the pumps, reducing the noise emitted by pumps and reducing leaks in hydraulic piston cylinders. The predicted forging force as a function of heavy steel forging heights for various deformation temperatures and strain rates was determined. A simulation model of the 80 MN hydraulic forging press is presented, which is useful for determining the time-varying parameters during the forging process. An energy-saving control for the hydraulic forging press based on the forging process parameters’ prediction has been developed. Real-time model predictive control (MPC) was developed based on multiple inputs multiple outputs (MIMO), and global predictive control (GPC). The GPC has been implemented in the control system of an 80 MN industrial hydraulic forging press. The main advantage of this control system is the repeatability of the forging process and minimization of the size deviation of heavy large steel forgings

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On the effect of deformation conditions on the metal flow behavior during upsetting process using finite element simulation DEFORM 3D software

Obiko,

Shongwe,

Malatji

2024

Int J Interact Des Manuf

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The study reports on the metal flow behaviour during upsetting or forging using the finite element method. Forging simulation studied the metal flow behaviour of a laboratory-sized specimen and a cylindrical engine connecting rod specimen of AISI 52100 high-chromium steel specified in the software database. The focus was to study the effect of deformation conditions (temperature and die velocity) on metal flow behaviour during forging. The simulation results showed heterogeneous metal flow behaviour during forging. Hence, this indicates that effective flow stress and flow strain, particle flow velocity, effective strain rate, damage and temperature distribution exhibited inhomogeneous deformation behaviour. As the temperature increased, the forging load decreased, thus a decrease in deformation resistance. The simulation of the engine connecting rod further confirmed inhomogeneous deformation during forging. Damage coefficient results show that the crack pin end had a higher damage probability during forging. This study clearly showed that finite element simulation can predict metal flow behaviour during the forging of AISI 52100 steel. The study output provides a basis for analysing and optimising most industrial metal forming processes using a numerical simulation approach. Hence, this method is effective in predicting flow behaviour.

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Analysis of Deformation and Damage Evolution in Hot Elongation Forging

Cited by 8 publications

References 6 publications

Development of technology for production of hot forged brackets made of S355 J2 +(N) steel bars

Development of technology for production of hot forged brackets made of S355 J2 +(N) steel bars

Energy-Saving Hot Open Die Forging Process of Heavy Steel Forgings on an Industrial Hydraulic Forging Press

On the effect of deformation conditions on the metal flow behavior during upsetting process using finite element simulation DEFORM 3D software

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