使用无涂层和有 CrAlSiN 涂层的 WC 刀具,以热硬法对 IN625 合金进行激光辅助车削的研究

IF 2.3 4区 工程技术 Q2 ENGINEERING, MECHANICAL
Amarendhar Rao, Manish Tak, Narasimha Rao, Krishna Vallleti, Ravi Bathe
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引用次数: 0

摘要

本文研究了使用未涂层和 CrAlSiN 纳米复合涂层硬质合金刀具对 IN625 超合金进行激光辅助车削的效果。对 IN625 材料进行了热硬度测试,结果表明材料在 850 °C 以上出现明显软化。这一实验为后续的激光辅助车削实验选择激光功率提供了指导。对计划实验中的切削力(径向/推力,Fx;轴向/进给,Fy;切向/切削,Fz)、最大侧面磨损(VBBmax)和表面粗糙度(Ra)进行了测量和分析。结果表明,在 2500 W 激光功率下,未涂层刀具的切削力在 Fx、Fy 和 Fz 方向上分别降低了 9%、70% 和 59%,CrAlSiN 涂层刀具的切削力则分别降低了 31%、77% 和 69%。在 2250 W 激光功率下,未涂层工具的 VBBmax 降低了 33% (433-289 µm),Ra 降低了 28% (1.8-1.3 µm)。在 2500 W 激光功率下,CrAlSiN 涂层工具的改进更为显著,VBBmax 降低了 46%(365-232 µm),Ra 降低了 56%(1.4-0.8 µm)。这些结果凸显了激光辅助车削在减少切削力和刀具磨损方面的改进性能,以及在使用 CrAlSiN 涂层刀具时表面光洁度的提高。本文介绍了激光辅助加工作为加工 IN625 等难加工材料的一种可行方法的潜力,它具有巨大的生产效率和刀具寿命优势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Investigations on laser-assisted turning of IN625 alloy with hot hardness approach using uncoated and CrAlSiN coated WC tools
This paper presents an investigation into the effect of laser-assisted turning of the IN625 superalloy using uncoated and CrAlSiN nanocomposite-coated tungsten carbide tools. A hot hardness test was conducted for IN625 material, which showed there was a pronounced softening of the material above 850 °C. This exercise guided the choice of laser power for the subsequent laser-assisted turning experiments. The cutting forces (radial/thrust, Fx; axial/feed, Fy; and tangential/cutting, Fz), maximum flank wear (VBBmax), and surface roughness ( Ra) were measured and analyzed for the planned experiments. The results demonstrated that at 2500 W laser power, a 9%, 70%, and 59% reduction of cutting forces for uncoated tools, and a 31%, 77%, and 69% reduction for CrAlSiN coated tools were observed in the Fx, Fy, and Fz directions respectively. At 2250 W laser power, the uncoated tools exhibited a 33% (433–289 µm) reduction in VBBmax and a 28% (1.8–1.3 µm) reduction in Ra. The CrAlSiN-coated tools, at 2500 W laser power, showed even more significant improvements, with reductions of 46% (365–232 µm) in VBBmax and 56% (1.4–0.8 µm) in Ra. The results underline the improved performance of laser-assisted turning for cutting-force and tool-wear reduction and improved surface finish with CrAlSiN-coated tools. This paper presents the potential of laser-assisted machining as a viable method for machining difficult-to-machine materials like IN625, which offers enormous manufacturing productivity and tool life benefits.
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来源期刊
CiteScore
3.80
自引率
16.70%
发文量
370
审稿时长
6 months
期刊介绍: The Journal of Process Mechanical Engineering publishes high-quality, peer-reviewed papers covering a broad area of mechanical engineering activities associated with the design and operation of process equipment.
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