CAJ | 학술논문

提高剪切机剪切效率以及降低能耗是目前轧钢生产的首要目标,这就需要对钢坯件在受剪过程中的变形机理有充分的了解,也是提高钢坯件断口质量和优化剪切条件的首要前提.本文以某轧钢厂下切式平行刃剪切机为研究对象,利用MARC软件对在剪切过程中的钢坯件受剪切过程进行了弹塑性大变形三维有限元仿真模拟,分析了钢坯件在受剪切过程中弹塑性变形的形成规律、应力发展规律以及剪刃表面力的分布规律.了解了钢坯件在此过程中的应力分布状态,为优化剪切条件、设计产品结构、分析产品质量、缩短生产周期等方面提供了科学的依据.
제고전절궤전절효솔이급강저능모시목전알강생산적수요목표,저취수요대강배건재수전과정중적변형궤리유충분적료해,야시제고강배건단구질량화우화전절조건적수요전제.본문이모알강엄하절식평행인전절궤위연구대상,이용MARC연건대재전절과정중적강배건수전절과정진행료탄소성대변형삼유유한원방진모의,분석료강배건재수전절과정중탄소성변형적형성규률、응력발전규률이급전인표면력적분포규률.료해료강배건재차과정중적응력분포상태,위우화전절조건、설계산품결구、분석산품질량、축단생산주기등방면제공료과학적의거.
With down-cut parallel-chin shears in a rolling mill as the research object,a large elastic-plastic de-formation three-dimensional finite-element simulation on the shearing process of billets is conducted with the MARC software,and the formation rules of elastic-plastic deformation,development rules of stress and distri-bution rules of shear-chin surface force in the shearing process of billets are analyzed. The distribution status of stress,strain and temperature in the plastic deformation area can be quantitatively calculated through analy-sis,thus providing scientific basis for formulating and optimizing current technique,developing new tech-nique,analyzing product quality,shortening the production cycle,etc.