滚切剪最大剪切力计算公式的研究  

Formula build and industrial research for maximal shear stress of rolling shears

作　　者：张继东[1] 楚志兵[1] 常瑜[2] 黄庆学[1] 

机构地区：[1]太原科技大学重型机械教育部工程研究中心,山西太原030024 [2]中国重型机械研究院有限公司,陕西西安710032

出　　处：《重型机械》2010年第5期59-62,共4页Heavy Machinery

摘　　要：以纯滚动剪切为目标,通过对新型滚切剪剪切原理分析,把滚切过程分为切入阶段和滚切阶段两个阶段,在充分考虑了剪切过程对剪切力变化的基础上,推导出切入阶段和滚切阶段的剪切力的理论公式,并进行修正,得出滚切剪的力能计算公式;同时以某大型钢铁有限公司3 000 mm定尺滚切剪为例,对剪切过程中剪切力进行测定,并对理论公式和实测结果进行对比,为滚切剪能力设计提供依据。Making pure rolling shearing as the target, this article divided the rolling shearing process into two steps, i. e. cutting and rolling shearing through analysis of shearing principle of new type rolling shear. It deduced the theoretical formula for shear stress in cutting and rolling shearing based on giving adequate consideration in the shearing process to the shear stress change, made correct for it and then obtained the formula for power and energy of rolling shear. Meanwhile, taking 3 000 mm fixed length rolling shear in a large-scale steel and iron Co. , Ltd. , as an example, it tested the shear stress during shearing and compared the tested results with theoretical formula to provide bases for design of rolling shear capability.

关 键 词：滚切剪 切入阶段 滚切阶段 

分 类 号：TG333[金属学及工艺—金属压力加工]