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辊锻孔型设计图解法的改进与简化
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英文标题： |
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作者：Dr. A. Thomas 张士宏 |
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出版年,卷(期):页码：1989,14(5):7-13 |
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摘要：
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<正> 一、前言锻造压力机越来越多地用于生产长轴类零件,而这类零件一般还需要预锻成形。因而导致了辊锻机的应用相应增加,通过连续辊锻预制毛坯。图1用图解法说明了辊锻的原理。图1表明,通过一系列的“椭圓道次—方孔道次”或“椭圓道次—圆孔道次”辊锻加工。压下量一定时,选择使每道次坯料恰好充满孔型的孔口形状很重要。如果填充过量则会出现飞边,而在以后的辊锻道次中这些飞边金属将被滚进坯料而产生裂纹之类缺陷。
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参考文献：
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[1] Eumuco trade literature.
[2] National Machinery Ltd. trade literature.
[3] "Le travail sur laminoirs de forge". ADETIEF.
[4] V A Shivlof et al. "Systems of automated calculations of optimum pass design for simple cross sections-Report 1． " Izv. VUZ Chernaya Metall. 1982(4) 50-55． BISI Translation 21289．
[5] P Braun-Angott & E Neuschutz "Determination of lateral spread and deformation perfmance for rolling operations in groove rolling, using a new calculation method." 2nd. Int.Conf.on Steel Rolling. Dusseldorf June 1984． BISI Translation 23167
[6] D J Joyce & A T homas "Reducer rolling theory and practise." MFT Forging Handbook. Materials Forming Technology Ltd. Shepherd Street, Sheffield S3 7BA. England.
[7] L Moses "Mathematical aids to determine spread and reduction rates in rolling. Iron & Steel Engineer. Dec. 1959．
[8] A E Lendl "Rolled bars. Part 2 Application of spread calculation to pass design." Iron & Steel Aug. 1948 pp397-402．
[9] G Lilligren Bofors Forge. Private Com munication.
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