The Influence of Milling Parameters on Surface Integrity under Different Processing Methods

Jun Wei

doi:10.62051/ijmee.v5n1.07

Authors

Jun Wei

DOI:

https://doi.org/10.62051/ijmee.v5n1.07

Keywords:

Selective Laser Melting, TA15, Feed Per Tooth

Abstract

Ultrasonic assisted milling technology has shown significant effects in improving the quality of machined surfaces, but its specific mechanism of action on the surface and near surface of the workpiece when applied to SLM forming TA15 titanium alloy still needs to be further explored. Under the premise of keeping other cutting conditions constant, as the feed rate of each tooth increases, the machining area covered by the tool expands accordingly, which has a direct impact on the formation of surface microstructure. Based on the above reasons, different microstructures of the machined surface can be obtained by changing the feed rate of each tooth. This article mainly uses surface morphology, roughness, and hardness as key indicators to evaluate the integrity of the machined surface. It systematically analyzes the trend and law of the influence of each tooth feed rate on surface morphology, roughness, and surface hardness during ultrasonic vibration milling of SLM formed TA15 titanium alloy.

References

[1] Boban, J; Ahmed, A. (2022)Electric discharge assisted post-processing performance of high strength-to-weight ratio alloys fabricated using metal additive manufacturing. Manuf. Sci.Technol.39,159-174. https://doi.org/ 10.1016/ j. cirpj.2022.08.002.

[2] Umbrello, D; Bordin, A; Imbrogno,S.; Bruschi,S.(2017) 3D finite element modelling of surface modification in dry and cryogenic machining of EBM Ti6Al4V alloy.CIRP .Manuf.Sci.Technol.18,92-100. https://doi.org/10. 1016/ j. cirpj.2016.10.004.

[3] Parry, L; Ashcroft, I.A;Wildman,R.D.(2016)Understanding the effect of laser scan strategy on residual stress in selective laser melting through thermo-mechanical simulation.Addit.Manuf.12,1-15. https://doi.org/ 10. 1016/ j.addma.2016.05.014.

[4] Prasad, A.V.S.R;Ramji,K;Datta,G.L.(2014)An experimental study of wire EDM on Ti-6Al-4V alloy. Proc. Mater. Sci.5, 2567-2576.https://doi.org/10.1016/j.mspro.2014.07.517.

[5] Gupta, R.K; Kumar,V.A;Mathew,C;Rao,G.S.(2016)Strain hardening of titanium alloy Ti-6A1-4V sheets with prior heat treatment and cold working.Mater. Sci. Eng A, 662, 537-550. https://doi.org/10.1016/j.msea.2016.03.094.

[6] Formanoir, C;Brulard,A;Vivès,S;Martin,G;Prima,F;Michatte,S;Riviere,E;Dolimont,A.;Godet,S.(2017)A strategy to improve the work-hardening behavior of Ti-6Al-4V parts produced by additive manufacturing. Mater.Res. Lett. 5,201-208.https://doi.org/10.1080/21663831.2016.1245681.

[7] Ercetin, A; Ozgun, O; Aslantas,K.(2023)Powder metal Al2O3 reinforced Mg5Sn matrix composites:Production and characterization.Fac.Eng. Archit. Gazi Univ.38,1003-1011. http://dx.doi.org/10.17341/gazimmfd.947051.

[8] Ercetin, A.(2021)A novel Mg-Sn-Zn-Al-Mn magnesium alloy with superior corrosion properties. Metall.Res. Technol. 118,504. https://doi.org/10.1051/metal/2021064.

[9] Liu,S; Shin,Y. C.(2019)Additive manufacturing of Ti-6Al-4V alloy:A review. Mater.Des. 164,107552. https:// doi. org/ 10.1016/j.matdes.2018.107552.