Effect of AlTiN-coating oblique guillotine tools on their performance when shearing electrical steel sheets
- 44 Downloads
An AlTiN coating was deposited onto a cemented carbide oblique guillotine tool using arc ion plating technology to improve its shearing performance and wear resistance. Shearing experiments were subsequently conducted using sheets of electrical steel to study the performance of the coated and uncoated tools. Other important aspects, such as the quality of the shearing fracture surface, edge radius, shear force, and degree of tool wear, were also investigated as a function of shearing time. The results show that the performance of the AlTiN-coated tool is greatly superior to that of the uncoated tool. During the normal shear stage, the shear force of the coated tool was 14.7% less than that of the uncoated tool. The coated tool also suffered smaller amounts of tool wear and change in edge radius compared to the uncoated tool. Moreover, the electrical steel sheet sheared using the coated tool was found to have fracture surfaces of significantly higher quality than that sheared using the uncoated tool. Evidence of this can be seen in the larger sheared zones, lower fracture zones, shorter burrs, and much-reduced degree of work hardening obtained using the coated tool. The uncoated cemented carbide tool was mainly subjected to cobalt-loss induced wear, abrasive wear, and oxidative wear. The results indicate that the AlTiN coating is able to significantly improve the shear performance and service life of shearing tools.
KeywordsAlTiN coating Oblique guillotine tool Electrical steel sheets Shearing performance Wear
Unable to display preview. Download preview PDF.
The authors would like to thank the National Natural Science Foundation of China (no. 51575112) and Guangdong Provincial Science and Technology Project (no. 2016A050503043) for their financial support. At the same time, the authors would like to thank Professor Qimin Wang from Guangdong University of Technology for his help in the preparation of coatings.
- 2.Wisselink HH (2000) Analysis of guillotining and slitting, finite element simulations. Dissertation, University of TwenteGoogle Scholar
- 4.Gao ZH, Lu JB, Yan QS, Xie ZP, Li ZR (2016) Research on the wear and regrinding process of carbide alloy disc cutter. J Plasticity Eng 23(5):202–208. https://doi.org/10.3969/j.issn.1007-2012.2016.05.034 (In Chinese)CrossRefGoogle Scholar
- 5.Lu JB, Li S, Yan QS, Xie ZP, Ouyang J, Li ZR (2014) Wear of carbide alloy disc cutter and its effect on the slitting quality in the disc slitting process. J Plasticity Eng 21(6):117–123. https://doi.org/10.3969/j.issn.1007-2012.2014.06.022 (In Chinese)CrossRefGoogle Scholar
- 6.Chowdhury MSI, Chowdhury S, Yamamoto K, Beake BD, Bose B, Elfizy A, Cavelli D, Dosbaeva G, Aramesh M, Fox-Rabinovich GS, Veldhuis SC (2017) Wear behaviour of coated carbide tools during machining of Ti6Al4V aerospace alloy associated with strong built up edge formation. Surf Coat Technol 313:319–327. https://doi.org/10.1016/j.surfcoat.2017.01.115 CrossRefGoogle Scholar
- 14.Ilyuschenko AP, Feldshtein EE, Lisovskaya YO, Markova LV, Andreyev MA, Lewandowski A (2015) On the propepties of PVD coating based on nanodiamond and molybdenum disulfide nanolayers and its efficiency when drilling of aluminum alloy. Surf Coat Technol 270:190–196. https://doi.org/10.1016/j.surfcoat.2015.03.004 CrossRefGoogle Scholar
- 29.Xu YC, Chen KH, Wang SQ, Zhu C, Xie CQ, Chen XM (2011) Oxidation and cutting properties of TiN and TiAlN coated cemented carbide. Mater Sci Eng Powder Met 16(3):425–430. https://doi.org/10.3969/j.issn.1673-0224.2011.03.019 (In Chinese)CrossRefGoogle Scholar
- 31.Zeilinger A, Todt J, Krywka C, Müller M, Ecker W, Sartory B, Meindlhumer M, Stefenelli M, Daniel R, Mitterer C (2016) In-situ observation of cross-sectional microstructural changes and stress distributions in fracturing TiN thin film during nanoindentation. Sci Rep 6:1–14. https://doi.org/10.1038/srep22670 CrossRefGoogle Scholar