研究 4605 低合金钢粉-聚合物混合物的金属注射成型:利用 RSM 技术对注射阶段进行参数优化

IF 2.4 3区 化学 Q3 POLYMER SCIENCE
Sina Rezaei, Ali Askari
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引用次数: 0

摘要

这项研究改进了金属注射成型 (MIM) 工艺,利用 4605 低合金钢制造出弯曲型薄壁发动机部件。利用五要素方框-贝肯设计(BBD)和响应面方法(RSM),我们对注塑参数进行了优化。差示扫描量热法(DSC)和流变分析有助于确定参数范围。最佳注塑条件确定为温度 155 °C、速度 80 mm/s、保压压力 83 bar、保压时间 9 s 和注塑压力 132 bar,理想的绿色部件密度为 4.892 g/cm3。注塑压力是影响制备的绿色部件密度的最关键因素。在这些条件下制备的样品与预期密度非常接近,烧结后的密度和硬度符合 MIM-4605 标准,证明了优化参数的有效性。这项研究工作不仅确定了 MIM 工艺的最佳条件,还强调了注塑参数在决定零件质量方面的重要作用。这些发现为制造业,尤其是发动机部件的精密制造提供了宝贵的见解。未来的研究方向包括将研究扩展到不同的材料和几何形状,评估长期机械性能,结合机器学习加强优化,以及评估 MIM 工艺对环境的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Investigating metal injection molding of 4605 low-alloy steel powder-polymer mixture: parametric optimization of the injection stage using RSM technique

Investigating metal injection molding of 4605 low-alloy steel powder-polymer mixture: parametric optimization of the injection stage using RSM technique

This work refines the metal injection molding (MIM) process for creating a bend-type thin-walled engine component from 4605 low-alloy steel. Utilizing a five-factor Box–Behnken design (BBD) and response surface methodology (RSM), we optimized the injection parameters. Differential scanning calorimetry (DSC) and rheology analysis helped establish the parameter ranges. The optimal injection conditions were determined to be as temperature of 155 °C, speed of 80 mm/s, holding pressure of 83 bar, holding time of 9 s, and injection pressure of 132 bar, resulting in an ideal green part density of 4.892 g/cm3. The injection pressure was found to be the most critical factor affecting the density of the prepared green part. A sample produced under these conditions closely matched the expected density, and after sintering, its density and hardness conformed to the MIM-4605 standards, demonstrating the effectiveness of the optimized parameters. This research work not only pinpointed the optimal conditions for the MIM process but also highlighted the significant role of injection parameters in determining quality of the parts. These findings provided valuable insights for the manufacturing industry, especially in the precision fabrication of engine components. Future research directions include expanding the study to different materials and geometries, evaluating long-term mechanical properties, incorporating machine learning for enhanced optimization, and assessing the environmental impact of the MIM process.

Graphical abstract

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来源期刊
Iranian Polymer Journal
Iranian Polymer Journal 化学-高分子科学
CiteScore
4.90
自引率
9.70%
发文量
107
审稿时长
2.8 months
期刊介绍: Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.
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