| 宋志远， 刘淑梅， 莫壮壮， 赵毅.基于响应面法的蓄能器壳体工艺优化[J].轻工机械,2020,38(2):90-94 |
| 基于响应面法的蓄能器壳体工艺优化 |
| Process Optimization of Accumulator Housing Based on Response Surface Method |
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| DOI：10.3969/j.issn.1005 2895.2020.02.016 |
| 中文关键词: 金属成型工艺 温挤压 响应面法 DEFORM软件 |
| 英文关键词:metal forming process warm extrusion process response surface method DEFORM |
| 基金项目: |
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| 摘要点击次数: 651 |
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| 中文摘要: |
| 为消除蓄能器壳体在冷挤压过程中的表面皱纹，提高表面质量，降低零件的成型载荷，课题组对原有的工艺方案进行改进，提出了一种新的成型工艺方案。方案的第1道工序为反挤压制胚；第2道冷挤压工序改为温挤压工序进行减径成型，以提高金属在成型过程中的流动性。采用响应面优化法对第2道温挤压工序进行实验分析，并找到最佳的工艺参数，即坯料加热温度为792 ℃、模具预热温度为292 ℃、液压机下压速度为18 mm/s。结合DEFORM数值模拟的结果，进行实际的工艺验证，获得了合格的零件，为同类型零件提供参考，对实际生产实践具有一定的参考意义。 |
| 英文摘要: |
| In order to eliminate the surface wrinkles of the accumulator shell during cold extrusion, improve the surface quality and reduce the forming load of the part, a new forming process plan was proposed by improving the original process. The first procedure was the reverse extrusion of the embryo, the second procedure of the cold extrusion process was changed to the warm extrusion process for reducing the diameter to improve the fluidity of the metal during the forming process. The response surface optimization method was used to analyze the second warm extrusion process, and the optimal process parameters were found, that is, the billet heating temperature is 792 ℃, the mold preheating temperature is 292 ℃, and the hydraulic press down speed is 18 mm/s. Combined with the results of DEFORM numerical simulation, the actual process verification was carried out, and qualified parts were obtained, which provides a reference for the same type of parts and has certain reference significance for the actual production practice. |
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