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Study of Friction and Wear Effects in Aluminum Parts Manufactured via Single Point Incremental Forming Process Using Petroleum and Vegetable Oil-Based Lubricants

机译：用石油和植物油润滑剂通过单点增量成型过程制造的铝部件摩擦磨损效应研究

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This paper focuses on studying how mineral oil, sunflower, soybean, and corn lubricants influence friction and wear effects during the manufacturing of aluminum parts via the single point incremental forming (SPIF) process. To identify how friction, surface roughness, and wear change during the SPIF of aluminum parts, Stribeck curves were plotted as a function of the SPIF process parameters such as vertical step size, wall angle, and tool tip semi-spherical diameter. Furthermore, lubricant effects on the surface of the formed parts are examined by energy dispersive spectroscopy (EDS) and scanning electron microscope (SEM) images, the Alicona optical 3D measurement system, and Fourier-transform infrared spectroscopy (FTIR). Results show that during the SPIF process of the metallic specimens, soybean and corn oils attained the highest friction, along forces, roughness, and wear values. Based on the surface roughness measurements, it can be observed that soybean oil produces the worst surface roughness finish in the direction perpendicular to the tool passes (Ra =1.45 μm) considering a vertical step size of 0.25 mm with a 5 mm tool tip diameter. These findings are confirmed through plotting SPIFed Stribeck curves for the soybean and corn oils that show small hydrodynamic span regime changes for an increasing sample step-size forming process. This article elucidates the effects caused by mineral and vegetable oils on the surface of aluminum parts produced as a function of Single Point Incremental Sheet Forming process parameters.
机译：本文着重于研究通过单点增量成形（SPIF）工艺制造的铝部件期间矿物油，向日葵，大豆和玉米的润滑剂影响的摩擦和磨损的效果如何。为了识别的铝部件的SPIF期间如何摩擦，表面粗糙度，以及磨损的变化，曲线斯特里贝克描绘为SPIF工艺参数的函数，例如垂直步长大小，壁的角度，和刀尖半球形的直径。此外，通过能量色散谱（EDS）和扫描电子显微镜（SEM）图像检查所形成的部件的表面上的润滑剂影响，Alicona光学三维测量系统，和傅里叶变换红外光谱（FTIR）。结果表明，在金属试样的SPIF过程，大豆和玉米油得到最高的摩擦，沿着力，粗糙度和磨损值。基于表面粗糙度测量中，可以观察到，大豆油产生垂直的方向上最坏的表面粗糙度精加工到工具通行证（RA = 1.45微米）考虑与一个5毫米的工具尖端直径为0.25mm的垂直步长。这些发现是通过绘制SPIFed斯特里贝克曲线为大豆和玉米油，显示对于增加的样品步长形成处理小液力跨度制度的变化证实。本文阐明引起的作为单点增量板成形过程参数的函数产生的铝部件表面上矿物油和植物油的影响。

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