3D Finite Element Analysis of Spider Non-isothermal Forging Process

Niu, Ling; Wei, Wei; Alexandrov, Igor; Hu, Jing

doi:10.1007/s11665-016-2108-2

Cited by 3 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The average grain size in different deformation stages is listed in Table 3. The measured deformation temperature is about 400 ℃ in the cold forging of 20Cr steel spider [19]. In the local part of spider, the deformation temperature may be much higher, some recrystallization occurs.…”

Section: Simulation Control Of Spider Forging Processmentioning

confidence: 92%

Microstructure evolution of 20Cr steel spider during cold forging using cellular automaton method

Wei

Niu

Wei

et al. 2018

Acta Metall. Slovaca

Self Cite

View full text Add to dashboard Cite

<p class="AMSmaintext"><span lang="EN-GB">The microstructure evolution of 20Cr steel spider in the cold forging process was simulated and analyzed by CA method, and verified by the experimental results. The CA simulation results show that the grain size becomes smaller with an increase of forging reduction. When the reduction is 60%, the grain size is the smallest. After that, the microstructure is inhomogeneous. At the same forging reduction, the microhardness at the root of the pin is higher than that at the head of the pin. It is well agreed with the distribution of the effective strain. The CA results agree well with the experimental data in terms of microstructure evolution and microhardness distribution, suggesting that the CA model is a reliable numerical approach for predicting microstructure evolution during cold forging for 20Cr steel spider.</span></p>

show abstract

Section: Simulation Control Of Spider Forging Processmentioning

confidence: 92%

Microstructure evolution of 20Cr steel spider during cold forging using cellular automaton method

Wei

Niu

Wei

et al. 2018

Acta Metall. Slovaca

Self Cite

View full text Add to dashboard Cite

show abstract

“…Heat transfer is carried out by convective and radiative exchange with the environment from the free surface of a workpiece. A heat convection coefficient to the environment equal to 20 W/(m 2 K) and the emissivity 0.7 N/(s mm K 4 ) were assumed in order to reproduce the thermal gradient due to the deformation material cooling time [ 28 ]. The characteristics of the properties such as: density, specific heat, and thermal conductivity, were assumed upon the basis of experimental data, and set as the functions of temperature.…”

Section: Methodsmentioning

confidence: 99%

Analysis of Deformation, the Stressed State and Fracture Predictions for Cogging Shafts with Convex Anvils

Kukuryk

2021

Materials

View full text Add to dashboard Cite

In this article, a new manner of cogging a forging (type: shaft), consisting in the application of a two-stage process composed of preliminary shaping in convex anvils, and also principal forging in flat or shaped anvils, is presented. A new manner of forging brought about the formation of favorable conditions for achieving the maximum values of the effective strain in the central part of a forging, accompanied by a simultaneous absence of tensile stresses, which was exerting a favorable influence upon reforging the axial zone of an ingot. What was determined, was the effective geometric shapes of convex anvils; the efficiency of different technological parameters in the case of the intensity of reforging the axial zone of an ingot was analyzed as well. The investigations were complemented by means of predicting the formation of ductile fractures in the course of forging with the application of three different ductile fracture criteria. The comparison of theoretical and experimental outcomes of investigations indicates a good level of being commensurate.

show abstract

A Fully Coupled Thermomechanical Damage Analysis of Hot Closed Die Forging Using Finite Element Modeling

Nytra

Kubík

Petruška

et al. 2020

J. of Materi Eng and Perform

View full text Add to dashboard Cite

3D Finite Element Analysis of Spider Non-isothermal Forging Process

Cited by 3 publications

References 7 publications

Microstructure evolution of 20Cr steel spider during cold forging using cellular automaton method

Microstructure evolution of 20Cr steel spider during cold forging using cellular automaton method

Analysis of Deformation, the Stressed State and Fracture Predictions for Cogging Shafts with Convex Anvils

A Fully Coupled Thermomechanical Damage Analysis of Hot Closed Die Forging Using Finite Element Modeling

Contact Info

Product

Resources

About