Numerical modelling of Direct Hot Tube Rotary Draw Bending of 22MnB5 High Strength Steel

Simonetto, Enrico; Ghiotti, Andrea; Bruschi, Stefania

doi:10.1016/j.cirpj.2022.03.003

Cited by 8 publications

(3 citation statements)

References 29 publications

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“…In [19], it was noted that the DHTRDB process experiences varying contact conditions between the tools and the workpiece due to kinematics, which impacts the cooling thermal paths. Without additional cooling, a thermal gradient arises between the bent intrados and extrados, leading to uneven microstructure and mechanical property distribution as shown in Figure 9.…”

Section: Hot Bending Of Steel Tubesmentioning

confidence: 99%

Review on sheet and tube forming at elevated temperature of third generation of high-strength steels

Bruschi¹,

Ghiotti²,

Simonetto³

2023

Mechanics & Industry

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The paper intends to review the most recent research works carried out in the framework of forming processes carried out at elevated temperature on steel sheets and tubes. The increasing demand of high strength-to-weight ratio components in different sectors, such as the automotive and aerospace ones, has recently pushed a more and more remarkable development of forming processes that involve the heating of the sheet at such temperatures to assure not only enhanced formability characteristics, but also microstructural features that can improve the component in-service properties. The focus of the paper will be on variants of the hot stamping process carried out on high strength-to-weight steel sheets and tubes to tailor the part characteristics.

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Section: Hot Bending Of Steel Tubesmentioning

confidence: 99%

Review on sheet and tube forming at elevated temperature of third generation of high-strength steels

Bruschi¹,

Ghiotti²,

Simonetto³

2023

Mechanics & Industry

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“…This 22MnB5 steel has the advantages of high strength and excellent collision resistance. The use of HF steel plates can meet the performance requirements and achieve lightweight automobiles [6][7][8]. Therefore, it has become the preferred material for automobile structural parts of many automobile enterprises [9].…”

Section: Introductionmentioning

confidence: 99%

Investigation into the Hot-Forming Limit for 22MnB5 Hot-Forming Steel under a Stamping Process

He,

Yang,

Zhang

et al. 2024

Metals

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Hot-forming technology for 22MnB5 hot-forming steel (22MnB5 HF steel) plates has been widely used in the automobile manufacturing industry in recent years. Physical simulation and numerical modeling were carried out in order to determine the forming limit of a 22MnB5 steel plate for the stamping process. The deformation experiments were performed in a temperature range of 600~900 °C and a strain rate range of 0.1~10 s−1. In the uniaxial tensile tests, it was found that at the forming temperature of 600 °C, the condition of dynamic recrystallization was not fully reached, and thus the corresponding tensile strength was much larger than that at other deformation temperatures. In the numerical simulation of bulging experiments, it was found that 22MnB5 steel had good formability when the initial deformation temperature was high and the forming speed was low by using the instability criterion, combining the maximum punch force and strain path transition. The forming limit diagram of 22MnB5 steel at a temperature of 700 °C and tool speed of 25 mm/s was obtained by means of simulation and a hot stamping experiment. The establishment of the forming limit of the 22MnB5 steel plate can provide theoretical and technical guidance for the hot-forming process.

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“…Among them, with the increase in initial spinning temperature and roll fillet radius, the degree of damage gradually decreases, which is beneficial for forming. To overcome the limits of traditional room temperature processes, an innovative rotary draw bending process carried out at high temperatures is proposed to increase the material's formability and obtain the target microstructure in the final part [9]. On this basis, Chen et al [10] further explored the effects of the laves phase on the burst behavior of GH3625 nickel-base superalloy pipe during hot extrusion.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Current Intensity and Feed Speed in Electrically Assisted Necking and Thickening of 5A02 Aluminum Alloy Tubes

Fan,

Xu,

Tao

et al. 2024

Materials

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In order to further explore the forming limits of thin-wall tube necking and thickening, and obtain sufficient thickness of the tube in the thickening area, local electric pulse-assisted forming experiments were carried out to study the effects of current intensity and feed speed on the necking and thickening forming of thin-wall tube. The experimental results show that with the increase in current intensity, the temperature in the forming area of the tube increases, and the forming load for necking and thickening decreases. However, with the increase in feed speed, the overall forming load for necking and thickening increases in general, and the smaller feed speed is more conducive to forming. Taking into account the forming efficiency and electrode loss, the corresponding forming process window is obtained for the manufacturing of good parts. That is, during the necking stage, the current intensity shall not be less than 300 A, and the feed speed shall not exceed 10 mm/min. During the thickening stage, the current intensity should not be less than 1400 A, and the feed speed should not exceed 1 mm/min. The target part is finally formed, with an average wall thickness of 5.984 mm in the thickening zone and a thickening rate of 303.2%.

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Numerical modelling of Direct Hot Tube Rotary Draw Bending of 22MnB5 High Strength Steel

Cited by 8 publications

References 29 publications

Review on sheet and tube forming at elevated temperature of third generation of high-strength steels

Review on sheet and tube forming at elevated temperature of third generation of high-strength steels

Investigation into the Hot-Forming Limit for 22MnB5 Hot-Forming Steel under a Stamping Process

Experimental Investigation of Current Intensity and Feed Speed in Electrically Assisted Necking and Thickening of 5A02 Aluminum Alloy Tubes

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