Experimental and theoretical study on the hot forming limit of 22MnB5 steel

Li, F. F.; Fu, Ming; Lin, Jianping; Wang, X. N.

doi:10.1007/s00170-013-5468-x

Cited by 43 publications

(20 citation statements)

References 26 publications

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“…The high temperature that can take advantage of the excellent formability is approximately from 600℃ to 800℃, the whole range of contact pressures applied in hot stamping is from 2 MPa to 30 MPa, 22 and the stamping velocities are usually from 30 mm/s to 100 mm/s. 23,24 According to the above analysis, the experimental parameters that need to be tested were chosen as shown in Table 3.…”

Section: Methodsmentioning

confidence: 99%

Investigation on tribological characteristics of boron steel 22MnB5–tool steel H13 tribopair at high temperature

Wang

Huang

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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In the background that the quenchable boron steels have been widely used to manufacture body-in-white by hot stamping because of its ultra-high strength, the understanding of frictional characteristics of the boron steel–tool steel tribopair at high temperature should be deepened. In this work, the friction behaviors of the tool steel H13 against the boron steel 22MnB5 were investigated at different temperatures, sliding velocities, contact pressures, and lubrication conditions by ring-on-disc sliding testing. The tribological characteristics were analyzed through scanning electron microscope and confocal laser scanning. The results show the relationship between the friction coefficient and the hot stamping parameters well. The friction coefficient decreases remarkably with the increasing temperature and contact pressure, but sliding velocity has no noticeable influence on the friction coefficient. The wear mechanism also changes with different process parameters and the main mechanism is a combination of adhesive and abrasive wear. Furthermore, MoS2 lubricant can reduce the friction coefficient effectively and protect the die from severe wear.

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Section: Methodsmentioning

confidence: 99%

Investigation on tribological characteristics of boron steel 22MnB5–tool steel H13 tribopair at high temperature

Wang

Huang

et al. 2016

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…A C C E P T E D ACCEPTED MANUSCRIPT 12 To study the temperature variation in hot stamping process, the sheet specimen is well designed, and five points from point A to point E are pre-designed and marked on the surface of specimen. Fig.6 shows the specimen of HSS B1500HS in this test.…”

Section: A N U S C R I P Tmentioning

confidence: 99%

“…However, the practical FLD test for HSS under thermal circumstance is more convincing than the theoretical analysis in hot stamp simulation [12]. The FLD tests under evaluated temperature are quite challenging.…”

mentioning

confidence: 99%

“…Based on plastic instability theory, such as the M-K model [7], yield criterion [8] and hardening law [9], the theoretical prediction of FLD for HSS under evaluated temperature was achieved [10,11]. However, the practical FLD test for HSS under thermal circumstance is more convincing than the theoretical analysis in hot stamp simulation [12]. The FLD tests under evaluated temperature are quite challenging.…”

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confidence: 99%

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Study on temperature distribution of HSS in hot FLD test

Yuan

et al. 2015

Applied Thermal Engineering

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“…Till now, several researches have studied the delay fracture behavior of high-strength and ultra high strength steel plat [13]. However, we attach less importance to the delay fracture resistance of low-carbon Mn-B steel plate [14], especially the delay fracture performance of low-carbon Mn-B steel plate which has H been processed by hot forming. With the rapid development of hot forming technology, it is urgent to evaluate the delay fracture behavior of hot formed ultra high-strength steel plate.…”

Section: Introductionmentioning

confidence: 99%

Effects of hydrogen induced delay fracture on high-strength steel plate of automobile and the improvement

Liu¹,

Zhao²

2016

Frattura Ed Integrità Strutturale

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Delay fracture is an environmental embrittlement occurring when materials, environment and stress interact with each other and also a form of hydrogen induced material deterioration. It is a leading factor inhibiting the further improvement of strength of steel and iron material. Hence this study analyzed the improved low-carbon Mn-B type ultra-high strength steel plate (1500 MPa) which were processed by conventional heat treatment and heating forming technique and explored the effects of tempering temperature and heating forming technique on the performance of hydrogen induced delay fracture, which provides a reference for the actual application of such kind of steel plate. KEY WORDS: Hydrogen induced delay fracture; Environmental management technology.

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Experimental and theoretical study on the hot forming limit of 22MnB5 steel

Cited by 43 publications

References 26 publications

Investigation on tribological characteristics of boron steel 22MnB5–tool steel H13 tribopair at high temperature

Investigation on tribological characteristics of boron steel 22MnB5–tool steel H13 tribopair at high temperature

Study on temperature distribution of HSS in hot FLD test

Effects of hydrogen induced delay fracture on high-strength steel plate of automobile and the improvement

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