Surface finishing of die and tool steels via plasma-based electron beam irradiation

Yu, Zhanjiang; Wang, Zhigang; Yamazaki, Kazuo; Sano, Sadao

doi:10.1016/j.jmatprotec.2006.06.014

Cited by 25 publications

(12 citation statements)

References 6 publications

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“…The heat source models for the laser beam should be different from those used for electron beam due to differing physics. One of the primary differences between the interaction of a [15] laser beam applied to a substrate material and its electron beam counterpart is that most of the photons are deflected rather than absorbed into the material. However, for powderbased additive manufacturing methods, such as selective laser melting (SLM), photons could reach deep into the powder bed because of multi-deflection between particles.…”

Section: Resultsmentioning

confidence: 99%

Multiscale modeling of electron beam and substrate interaction: a new heat source model

Yan

Smith

et al. 2015

Comput Mech

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An electron beam is a widely applied processing tool in welding and additive manufacturing applications. The heat source model of the electron beam acts as the basis of thermal simulations and predictions of the microstructures and mechanical properties of the final products. While traditional volumetric and surface heat flux models were developed previously based on the observed shape of the molten pool produced by the beam, a new heat source model with a physically informed foundation has been established in this work. The new model was developed based on Monte Carlo simulations performed to obtain the distribution of absorbed energy through electron-atom collisions for an electron beam with a kinetic energy of 60 keV hitting a Ti6Al-4V substrate. Thermal simulations of a moving electron beam heating a solid baseboard were conducted to compare the differences between the new heat source model, the traditional surface flux model and the volumetric flux model. Although the molten pool shapes with the three selected models were found to be similar, the predicted peak temperatures were noticeably different, which will influence the evaporation, recoil pressure and molten pool dynamics. The new heat source model was also used to investigate the influence of a static electron beam on a substrate. This investigation indicated that the new heat source model could scientifically explain phenomena that the surface and volumetric models cannot, such as eruption and explosion during electron beam processing.

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Section: Resultsmentioning

confidence: 99%

Multiscale modeling of electron beam and substrate interaction: a new heat source model

Yan

Smith

et al. 2015

Comput Mech

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“…One example is SKD11 steel which only has a hardness of 58-60 HV [13]. Though SKD11 steel is widely used as dies, forming, and cutting so it requires high hardness performance [13,14].…”

Section: акумуляторнI вIдходи -це вIдходи якI можуть завдати шкоди нmentioning

confidence: 99%

The effect of LFG plasma sputtering power on hardness of carbon thin films on SKD11 steel using target material from battery carbon rods

Purkuncoro

Soenoko

Santjojo

et al. 2020

EEJET

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“…The electron beam finished the metal surface without a focus electron beam; this beam irradiated the metal surface directly, which can reduce the roughness of metal surface from Ra 3.2μm to 0.17μm [4][5][6]. This method can finish the metal surface from a rough surface to be a smooth one in a few seconds, but each kinds of metal should selected new parameters for them; an inappropriate parameter will produce craters in finishing surface, which increase the roughness of the metal surface [4,7]. Instead, the mechanism of ion beam used for metal surface finishing is just the opposite with the electron beam [8,9].…”

Section: Introductionmentioning

confidence: 99%

Surface Finishing by Atmospheric Pressure Micro Plasma Beam Irradiation

Dai

Zheng

et al. 2015

Materials and Manufacturing Processes

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A metal surface finishing method by micro plasma beam irradiation was examined and presented in this study. Grey cast iron was used as the experimental material to examine the finishing effect by the micro plasma beam. This experimental setup consists of a compressed air system, a plasma torch and a power supply. The compressed gas was ignited by high voltage direct current pulsed gas discharge and facilitated the generation of plasma, as well as a plasma beam with a maximum diameter of 0.6 mm was used for finishing the metal surface instantly. The experimental results show that it was possible to remove the peak points which exist on the metal surface. It was showed clearly that after the irradiation by the micro plasma beam, the initial rusty and rough surface becomes a clean and smooth surface under a proper finishing condition.

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Surface finishing of die and tool steels via plasma-based electron beam irradiation

Cited by 25 publications

References 6 publications

Multiscale modeling of electron beam and substrate interaction: a new heat source model

Multiscale modeling of electron beam and substrate interaction: a new heat source model

The effect of LFG plasma sputtering power on hardness of carbon thin films on SKD11 steel using target material from battery carbon rods

Surface Finishing by Atmospheric Pressure Micro Plasma Beam Irradiation

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