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

Abstract

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.

Keywords

Friction coefficient boron steel tool steel hot stamping wear mechanisms

Get full access to this article

View all access options for this article.

References

Turetta

Bruschi

Ghiotti

. Investigation of 22MnB5 formability in hot stamping operations. J Mater Process Technol 2006; 177: 396–400.

Figueiredo

Ramalho

Oliveira

. Experimental study of friction in sheet metal forming. Wear 2011; 27: 1651–1657.

Al-Mayah

Soudki

Plumtree

. FEM and mathematical models of the interfacial contact behaviour of CFRP-metal couples. Compos Struct 2006; 73: 33–40.

Podgornik

Hogmark

Pezdirnik

. Comparison between different test methods for evaluation of galling properties of surface engineered tool surfaces. Wear 2004; 257: 843–851.

Figueiredo

Ramalho

Oliveira

. Experimental study of friction in sheet metal forming. Wear 2001; 271: 1651–1657.

Fratini

Lo Casto

Lo Valvo

. A technical note on an experimental device to measure friction coefficient in sheet metal forming. J Mater Process Technol 2006; 172: 16–21.

Gong

Lou

Zhang

. Studies on the friction and lubrication characteristics in the sheet steel drawing process. J Mater Process Technol 2004; 151: 328–333.

Cora

Koc

. Experimental investigations on wear resistance characteristics of alternative die materials for stamping of advanced high-strength steels (AHSS). Int J Mach Tool Manuf 2009; 49: 897–905.

Ghiotti

Sgarabotto

Bruschi

. A novel approach to wear testing in hot stamping of high strength boron steel sheets. Wear 2013; 302: 1319–1326.

10.

Azushima

Uda

Yanagida

. Friction behavior of aluminum-coated 22MnB5 in hot stamping under dry and lubricated conditions. J Mater Process Technol 2012; 212: 1014–1021.

11.

Yanagida

Azushima

. Evaluation of coefficients of friction in hot stamping by hot flat drawing test. CIRP Ann Manuf Technol 2009; 58: 247–250.

12.

Tian

Zhang

. Investigation on tribological behavior of advanced high strength steels: Influence of hot stamping process parameters. Tribol Lett 2012; 45: 489–495.

13.

Ghiotti

Bruschi

Sgarabotto

. Tribological performances of Zn-based coating in direct hot stamping. Tribol Int 2014; 78: 142–151.

14.

Geiger

Merklein

Lechler

. Determination of tribological conditions within hot stamping. Prod Eng Res Develop 2008; 2: 269–276.

15.

Hardell

Prakash

. High-temperature friction and wear behaviour of different tool steels during sliding against Al-SI-coated high-strength steel. Tribol Int 2008; 41: 663–671.

16.

Hardell

Kassfeldt

Prakash

. Friction and wear behaviour of high strength boron steel at elevated temperatures of up to 800℃. Wear 2008; 264: 788–799.

17.

Pelcastre

Hardell

Prakash

. Investigations into the occurrence of galling during hot forming of Al-Si-coated high-strength steel. Proc IMechE, Part J: J Engineering Tribology 2011; 225: 487–498.

18.

Tomala

Hernandez

Rodriguez Ripoll

. Tribological performance of some solid lubricants for hot forming through laboratory simulative tests. Tribol Int 2014; 74: 164–173.

19.

Cora

Agcayazi

Namiki

. Die wear in stamping of advanced high strength steels – Investigations on the effects of substrate material and hard-coatings. Tribol Int 2012; 52: 50–60.

20.

Skare

Krantz

. Wear and frictional behaviour of high strength steel in stamping monitored by acoustic emission technique. Wear 2003; 255: 1471–1479.

21.

Donnet

Erdemir

. Solid lubricant coatings: Recent developments and future trends. Tribol Lett 2004; 17: 3.

22.

Abdulhay

Bourouga

Dessain

. Experimental study of heat transfer in hot stamping process. Int J Mater Form 2009; 1: 255–257.

23.

Shi

Ying

. The finite element analysis of ductile damage during hot stamping of 22MnB5 steel. Mater Des 2015; 69: 141–152.

24.

Lin

. Experimental and theoretical study on the hot forming limit of 22MnB5 steel. Int J Adv Manuf Technol 2014; 71: 297–306.

25.

Ghiotti

Bruschi

Borsetto

. Tribological characteristics of high strength steel sheets under hot stamping conditions. J Mater Process Technol 2011; 211: 1697–1700. .

26.

Kohli

Prakash

. Contact pressure dependency in frictional behavior of burnished molybdenum disulphide coatings. Tribol Trans 2001; 44: 147–151.

27.

Morales Srianna T. Method to improve solid lubricant film tribological performance and adhesion to hot forming material. Patent No. US8250890 B2, 28 August 2012.