冲头表面毛化形貌参数对板料杯突值影响的试验

发布时间：2018-03-13 13:27

本文选题：激光毛化　切入点：球冠状　出处：《江苏大学学报(自然科学版)》2015年04期 　论文类型：期刊论文

【摘要】：对钢球冲头进行激光毛化处理,在表面得到不同几何参数的球冠状毛化形貌,将其在杯突试验机上进行杯突试验,考察冲头表面不同毛化形貌参数对杯突值的影响规律.结果表明:随着钢球表面毛化形貌参数和分布的改变,板材的杯突值随之变化.经激光毛化处理的钢球冲头,其板材的杯突值减小,最大减小幅度达7.99%;破裂圆的直径增加,破裂关键点远离球顶,向外移动最大距离为2.125 mm;未拉裂杯突试验成形件在球顶和破裂圆之间的厚度大于未造型钢球.球顶板料的厚度随着杯突值的减小而增加,厚度最大增加幅度为8.26%,造型后半球形件最薄处厚度的增加幅度达到2.81%.
[Abstract]:The surface of steel ball punch was treated by laser and the shape of spherical coronal hair was obtained with different geometric parameters. The effect of different texturing parameters on the surface of punching head was investigated. The results showed that with the change of surface texturing parameters and distribution of steel ball, the cupping value of plate changed. The cupping value of the plate decreases and the maximum decrease reaches 7.99. The diameter of the rupture circle increases and the key point of rupture is far away from the top of the ball. The maximum distance of outward movement is 2.125 mm. The thickness of uncracked cup-break test forming parts is larger than that of unshaped steel balls between the top of the ball and the broken circle. The thickness of the spherical top plate increases with the decrease of the cupping value. The maximum increase in thickness is 8.26, and the thickness of the thinnest part of the hemispherical part reaches 2.81 after modeling.
【作者单位】：江苏大学机械工程学院;
【基金】：国家自然科学基金资助项目(51175233) 江苏省科技支撑计划项目(BE2010060) 江苏省科技成果转化专项(BA2010068) 江苏省高校科研成果产业化推进项目(JHB2011-39) 江苏省“六大人才高峰”项目(08-B-04) 高等学校博士学科点专项科研基金资助项目(20113227110016)
【分类号】：TG385

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