| 鲁子恒,雷君相.基于ABAQUS的板材精冲工艺研究[J].有色金属材料与工程,2016,37(6):280-284,292. |
| 基于ABAQUS的板材精冲工艺研究 |
| Research on Fine-blanking Technology Based on ABAQUS |
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| DOI：10.13258/j.cnki.nmme.2016.06.006 |
| 中文关键词: 板材精冲 有限元模拟 反压力 压边力 |
| 英文关键词:plate fine-blanking finite element simulation back pressure blank holder force |
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| 中文摘要: |
| 构建厚度为1.5 mm的板材精密冲裁有限元模型，分析板材精冲的变形过程.通过大量有限元模拟，重点分析压边力和反压力对精冲断面质量的影响规律，并将模拟结果和试验结果进行对比分析.结果表明：当压边力不变时，随着反压力的增大，精冲断裂带长度不断减小，而断面平整度逐渐变差；当反压力不变时，断裂带长度不随压边力的增大发生较大改变，但断面平整度提高；当压边力和反压力相互配合时，冲孔断裂带最小，断面平整度最好；模拟结果与试验结果非常接近，说明压边力对精冲断面质量影响规律的模拟结果准确. |
| 英文摘要: |
| This paper presents building a finite element model of the fine blanking with a thickness of 1.5 mm plate and studying the plate deformation process by fine blanking.The effect on fracture surface by fine blanking through blank holder force and back pressure was analyzed.Both of simulations and experimental results similarly indicated that:when blank holder force was kept constant,the increase of back pressure shows fault zone was decreased and smooth finish got worse by fine blanking; when back pressure was kept constant,the increase of blank holder force manifests fault zone was not changed a lot but smooth finish got better; there is optimal point by using both to minimize the fault zone and obtain best smooth finish. |
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