Analysis of process forces and geometrical correlations for open-die forging with superimposed manipulator displacements

Wolfgarten, Martin; Rudolph, Fridtjof

doi:10.1016/j.jmatprotec.2019.116408

Cited by 7 publications

(2 citation statements)

References 8 publications

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“…Large steel products produced by complex open-die forging processes are widely used in industries with high quality demands on structural and mechanical properties. One of the key fields is undoubtedly power engineering, especially renewable sources, where heavy and long forgings are used, for example, for rotor shafts of wind turbines [10][11][12][13][14]. The input semifinished product for the production of these shafts is heavy steel ingots, in which there may be problems with achieving the required internal quality due to the occurrence of a very inhomogeneous and coarse-grained structure [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Rare Earth Metals Alloying on the Internal Quality of Industrially Produced Heavy Steel Forgings

Jonšta

Brožová

et al. 2021

Materials

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The paper presented the findings obtained by industrial research and experimental development on the use of rare earth metals (REMs) in the production of heavy steel ingots and their impact on the internal quality of the 42CrMo4 grade steel forging. REMs alloying was carried out after vacuuming the steel. A relatively large melting loss of cerium (about 50%) and its further decrease in casting due to reoxidation were observed. Refinement of structure and better mechanical properties of forged bar containing about 0.02 wt.% of Ce compared to that of the standard production were not achieved. The wind power shaft with content of about 0.06 wt.% of Ce showed high amount of REM inclusions, which were locally chained, and in some cases, initiated cracks. Four stoichiometrically different types of REM inclusions were detected in forgings, namely (La-Ce)2O2S + (La-Ce)O2 + SiO2 (minority); oxygen, phosphorus, arsenic, and antimony bound to lanthanum and cerium probably bonded with iron oxides La + Ce, MgO, Al2O3 a SiO2; (La-Ce)2O2S, FeO, SiO2, and CaO or CaS.

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Section: Introductionmentioning

confidence: 99%

The Effect of Rare Earth Metals Alloying on the Internal Quality of Industrially Produced Heavy Steel Forgings

Jonšta

Brožová

et al. 2021

Materials

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“…Forging was one of the oldest and most important metal forming processes due to the waxy deformation of metal [8]. In the forging process, the die walls control the flow of materials, the mechanical properties of the workpiece were significantly improved [9].…”

Section: Introductionmentioning

confidence: 99%

Investigation Experimental and Finite Element Method of Mechanical Properties of Hot Forging on Ti6Al4V Alloy

Tagimalek

Maraki

Mahmoodi

et al. 2021

IJEE

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Forging is one of the oldest and the most important processes of metal forming. The process occurs due to the waxy deformation of metal. In the forging process, the die walls control the material flow and the mechanical properties of the workpiece are significantly improved. Today's world industries, financing costs play a leading role in production. These categories have entered the industry to create a variety of simulation and numerical modeling methods to eliminate this problem. Simulation and experimental test, mechanical properties in the hot forging process in high-cost materials are of great interest to researchers. In this paper, the mechanical properties of hot forging in Ti6Al4V alloy are investigated. According to the obtained results, it can be found that a very close agreement has been made on experiments reported in literature and the simulation. Depending on the results, the strain rate Z-axis showed the shear bands appeared exactly on the 45-degree plates and in the sample center. In fact, the intersection of the band's sample center is the max strain applied to the die. This area has been created with an effective strain and stress at all depths of the workpiece and gradually expands.

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Vision Paper: Leveraging Industrial Big Data – Past, Present, and Future of the World Wide Lab

Behery,

Glawe,

Koren

et al. 2023

2023 IEEE International Conference on Big Data (BigData)

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Analysis of process forces and geometrical correlations for open-die forging with superimposed manipulator displacements

Cited by 7 publications

References 8 publications

The Effect of Rare Earth Metals Alloying on the Internal Quality of Industrially Produced Heavy Steel Forgings

The Effect of Rare Earth Metals Alloying on the Internal Quality of Industrially Produced Heavy Steel Forgings

Investigation Experimental and Finite Element Method of Mechanical Properties of Hot Forging on Ti6Al4V Alloy

Vision Paper: Leveraging Industrial Big Data – Past, Present, and Future of the World Wide Lab

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