Research on Lightweight Design and Indirect Hot Stamping Process of the New Ultra-High Strength Steel Seat Bracket

Tang, Ziming; Gu, Zhongwei; Jia, Lei; Li, Xin; Zhu, Lijuan; Hong, Xu; Yu, Ge

doi:10.3390/met9080833

Cited by 8 publications

(6 citation statements)

References 18 publications

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“…Then the preformed blank was put into a furnace sufficiently heated to 930 • C and held at this temperature for 5 min to guarantee a complete austenitization. The parameters were carried out following the experiments in [16]. After heating, the heated blank was removed from the furnace and transferred to the lower die to form the final shape of the product and then quenching.…”

Section: Finite Element Modelmentioning

confidence: 99%

General Research on the Process of the Indirect Hot Stamping Ultra-High-Strength Steel

Tang

et al. 2020

Metals

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Aiming at the need for lightweight requirements of the components in the bus, combined with the advantages of the hot stamping ultra-high-strength steel, a new television (TV) bracket was proposed. The finite element (FE) simulation of the beam part in the TV bracket during the indirect hot stamping process was discussed. After two-stages of pre-forming, the blank was in good formability and without visible cracks. According to the FE simulation results, the punch speed, quenching force, and quenching time significantly affected the temperature, microstructure, hardness, and mechanical properties of the beam part during hot stamping. With the increase of the quenching force and quenching time, the martensite fraction of the beam part was increased. For the beam part, the punch speed should be at least 80 mm/s during the forming stage. For complete quenching, the quenching force should be above 1000 kN and quenching time should be up to 10 s. Based on the parameters from the FE simulation, the forming experiment of the beam part was discussed. Microstructure analyses and microhardness tests as well as tensile tests of the hot stamping beam part were performed. The results confirmed that the FE simulation of the beam part was reliable.

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Section: Finite Element Modelmentioning

confidence: 99%

General Research on the Process of the Indirect Hot Stamping Ultra-High-Strength Steel

Tang

et al. 2020

Metals

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“…In this paper, structural steel is used as the base material, and the parts are processed and welded into a whole frame by pressing steel, cutting, and punching [18]. Many scholars have also conducted research in this area; Ziming Tang et al proposed a new type of seat bracket structure based on the lightweight requirements of electric bus components and the performance advantages of hot-rolled ultra-high-strength steel [19][20][21]. By altering the material, the entire vehicle can be made lighter.…”

Section: Introductionmentioning

confidence: 99%

Study on Sustainable Lightweight Design of Airport Waiting Chair Frame Structure Based on ANSYS Workbench

Zhang,

Xu,

et al. 2024

Sustainability

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The airport waiting chair frames, as an important part of the overall seating, must be designed to provide comfort, safety, and aesthetic appeal. While the airport furniture industry has made progress in terms of sustainability, more efforts are needed to improve material selection, manufacturing processes, and supply chain management to support the development of sustainable furniture. This study proposes innovative ideas for the lightweight design of the frame, based on the limitations of the existing design. Firstly, structural innovations are discussed, non-traditional mesh panels and curved rounded designs are discussed, and non-introduced mesh panels and curved designs are used to enhance the strength and stability of airport waiting chairs and enhance their overall performance. Secondly, innovations in lightweighting have focused on adjusting the thickness dimensions to enhance comfort, material utilization, and sustainability as well as to achieve a lightweight and thin appearance effect. In order to determine the optimal ranges of values for the thickness of the seat surface support strip (P5), the thickness of the backrest strip (P3), and the thickness of the seat panel (P1), nine groups of chairs with different frame sizes were tested using an orthogonal experimental method. Based on the experimental results for size and topology optimization, NX2312 software modeling will be imported into ANSYS Workbench for static analysis. Using the optimized results, the use of 2.842 kg of steel was successfully reduced by 34.8% to ensure the seat’s stability. This provides a reference and idea for the digital and standardized innovative design of airport waiting chair furniture structure in the future. Through digital design and lightweight optimization, material savings and effective use of resources can be achieved, promoting the goal of sustainable development.

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“…This paper mainly studied the ferrite and pearlite under different annealing temperature change and different influence on mechanical properties, morphology research result explains the changes of the microstructure under different annealing temperature effect on the mechanical properties, has practical guiding significance to make annealing process, in order to reduce the intensity of the hot rolled steel plate after laid a solid foundation to meet the user's special demand [9,10].…”

Section: Introductionmentioning

confidence: 99%

Influence of Annealing Temperatures on Microstructure and Mechanical Properties of 22MnB5 Hot Stamping Steel

Yang¹,

Liu²,

Jing³

et al. 2023

Atlantis Highlights in Materials Science and Technology

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In this paper, the relationship between microstructure and mechanical properties of 22MnB5 hot stamping steel at different annealing temperatures was studied by optical microscope, scanning electron microscope and universal tensile test machine. The results showed that the tensile strength and yield strength decreased with the increasing of annealing temperature. When the pearlite was not spheroidized, the strength decline was due to the growth of grains caused by the diffusion of metal atoms during heating. When the pearlite was spheroidized, the solid solution atoms in the ferritic matrix of spheroidized pearlite were diffused and precipitated at grain boundaries. The solid solution atoms in the ferritic matrix were reduced and the effect of solid solution strengthening was reduced, which leads to the decreasing of the overall strength of the material.

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Research on Lightweight Design and Indirect Hot Stamping Process of the New Ultra-High Strength Steel Seat Bracket

Cited by 8 publications

References 18 publications

General Research on the Process of the Indirect Hot Stamping Ultra-High-Strength Steel

General Research on the Process of the Indirect Hot Stamping Ultra-High-Strength Steel

Study on Sustainable Lightweight Design of Airport Waiting Chair Frame Structure Based on ANSYS Workbench

Influence of Annealing Temperatures on Microstructure and Mechanical Properties of 22MnB5 Hot Stamping Steel

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