沈国保,张驰,赵玲杰,等.薄壁塑件的翘曲数值分析及模具补偿[J].精密成形工程,2015,7(1):51-55.
SHEN Guo-bao,ZHANG Chi,ZHAO Ling-jie,et al.Numerical Simulation and Mold Compensation of Warpage for Thin-wall Plastic Parts[J].Journal of Netshape Forming Engineering,2015,7(1):51-55. |
| 薄壁塑件的翘曲数值分析及模具补偿 |
| Numerical Simulation and Mold Compensation of Warpage for Thin-wall Plastic Parts |
| 投稿时间：2014-11-02 修订日期：2015-01-10 |
| DOI：10.3969/j.issn.1674-6457.2015.01.010 |
| 中文关键词: 薄壁塑件 翘曲 数值模拟 模具补偿 |
| 英文关键词: thin-wall plastic warpage numerical simulation mould compensation |
| 基金项目:国家科技部科技型中小企业创新基金支持项目(07C26225111923) |
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| 中文摘要: |
| 目的 解决薄壁塑件在注塑成形过程中出现的翘曲问题。方法 采用moldflow 软件对产品注塑成形过程进行了数值模拟分析,确定了补偿量,运用补偿法对模具进行了修正,补偿变形量。结果 经过对模具的适当修正,薄壁塑件的翘曲量由原先的0. 89 mm 减少到0. 29 mm,装配精度得到了很大改善。结论 运用补偿法对塑件进行模具设计,使薄壁塑件的翘曲变形量大幅减少,尺寸精度满足使用要求,为生产实践提供了可靠依据。 |
| 英文摘要: |
| To solve the warpage of thin-wall plastic parts occurring in the injection molding process. Injection molding process was analyzed by numerical simulation using Moldflow software, from which the amount of compensation was determined. The mould was corrected by compensation method to compensate the deflection. After appropriate amendments to the mould, the warpage amount of the thin-wall plastic parts was decreased to 0. 29 mm from the original amount of 0. 89 mm, which greatly improved the assembly accuracy. The warpage amount of the thin-wall plastic parts was greatly decreased and the dimensional accuracy met the operating requirement when the compensation method was used in mould design for plastic parts, which provides a reliable basis for the production practice. |
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