The Influence of Thermal Conductivity of Die Material on the Efficiency of Hot-Stamping Process

Li, Shuang; Zhou, Luhai; Wu, Xiaochun; Zhang, Yun; Li, Junwan

doi:10.1007/s11665-016-2332-9

Cited by 11 publications

(1 citation statement)

References 27 publications

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“…Despite these achievements, the range of applications of such cooling systems is inevitably restricted by their complex design and the high costs of manufacturing and maintenance. In a different approach, Li et al [40] recently experimentally and numerically investigated the influence of thermal conductivity of dies on the cooling behaviour and final product performance, using five dies with different thermal conductivities. Their results showed that the cooling performance and formability were significantly improved by increasing the thermal conductivity of the die, showing the feasibility of this approach.…”

Section: Advanced Stamping and Die Quenching Technologiesmentioning

confidence: 99%

New Developments and Future Trends in Low-Temperature Hot Stamping Technologies: A Review

Tong

Rong

Yardley

et al. 2020

Metals

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Improvement of the hot stamping process is important for reducing processing costs and improving the productivity and tensile properties of final components. One major approach to this has been to conduct all or part of the process at lower temperatures. The present paper reviews the state of the art of hot stamping techniques and their applications, considering the following aspects: (1) conventional hot stamping and its advanced developments; (2) warm stamping approaches in which complete austenitisation is not attained during heating; (3) hot stamping with a lower forming temperature, i.e., low-temperature hot stamping (LTHS); (4) advanced medium-Mn steels with lower austenitisation temperatures and their applicability in LTHS. Prospects for the further development of LTHS technology and the work required to achieve this are discussed.

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Section: Advanced Stamping and Die Quenching Technologiesmentioning

confidence: 99%

New Developments and Future Trends in Low-Temperature Hot Stamping Technologies: A Review

Tong

Rong

Yardley

et al. 2020

Metals

View full text Add to dashboard Cite

show abstract

Review on additive manufacturing of tooling for hot stamping

Chantzis

Liu

Politis

et al. 2020

Int J Adv Manuf Technol

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Sustainability is a key factor in an automotive OEMs' business strategy. Vehicle electrification in particular has received increased attention, and major manufacturers have already undertaken significant investments in this area. However, in order to fully confront the sustainability challenge in the automotive industry, lightweight design in additional to alternative propulsion technologies is also required. Vehicle weight is closely correlated with fuel consumption and range for internal combustion and electrified vehicles, respectively, and therefore, weight reduction is a primary objective. Over the past decades, advanced steel and aluminium-forming technologies have seen considerable development, resulting in significant weight reduction of vehicle components. Hot stamping is one of the most established processes for advanced steel and aluminium alloys. The process offers low-forming loads and high formability as well as parts with high strength and minimal springback. However, the high temperatures of the formed materials over numerous cycles and the significant cooling required to ensure desirable component properties necessitate advanced tooling designs. Traditionally, casting and machining are used to manufacture tools; although in recent years, additive manufacturing has gained significant interest due to the design freedom offered. In this paper, a comprehensive review is performed for the state-of-the-art hot-forming tooling designs in addition to identifying the future direction of Additive Manufactured (AM) tools. Specifically, material properties of widely used tooling materials are first reviewed and selection criteria are proposed which can be used for the transition to AM tools. Moreover, key variables affecting the success of hot stamping, for example cooling rate of the component, are reviewed with the various approaches analysed by analytical and numerical techniques. Finally, a number of future directions for adopting additive manufacturing in the production of hot stamping tools are proposed, based on a thorough analysis of the literature.

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Mechanical Properties and Microstructure of High-Strength Steel Controlled by Hot Stamping Process

Zhang

et al. 2018

J. of Materi Eng and Perform

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The Influence of Thermal Conductivity of Die Material on the Efficiency of Hot-Stamping Process

Cited by 11 publications

References 27 publications

New Developments and Future Trends in Low-Temperature Hot Stamping Technologies: A Review

New Developments and Future Trends in Low-Temperature Hot Stamping Technologies: A Review

Review on additive manufacturing of tooling for hot stamping

Mechanical Properties and Microstructure of High-Strength Steel Controlled by Hot Stamping Process

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