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首页> 美国卫生研究院文献>Materials >Development of Metal Plate with Internal Structure Utilizing the Metal Injection Molding (MIM) Process
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Development of Metal Plate with Internal Structure Utilizing the Metal Injection Molding (MIM) Process

机译：利用金属注射成型（MIM）工艺开发具有内部结构的金属板

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摘要

In this study, we focus on making a double-sided metal plate with an internal structure, such as honeycomb. The stainless steel powder was used in the metal injection molding (MIM) process. The preliminary studies were carried out for the measurement of the viscosity of the stainless steel feedstock and for the prediction of the filling behavior through Computer Aided Engineering (CAE) simulation. PE (high density polyethylene (HDPE) and low density polyethylene (LDPE)) and polypropylene (PP) resins were used to make the sacrificed insert with a honeycomb structure using a plastic injection molding process. Additionally, these sacrificed insert parts were inserted in the metal injection mold, and the metal injection molding process was carried out to build a green part with rectangular shape. Subsequently, debinding and sintering processes were adopted to remove the sacrificed polymer insert. The insert had a suitable rigidity that was able to endure the filling pressure. The core shift analysis was conducted to predict the deformation of the insert part. The 17-4PH feedstock with a low melting temperature was applied. The glass transition temperature of the sacrificed polymer insert would be of a high grade, and this insert should be maintained during the MIM process. Through these processes, a square metal plate with a honeycomb structure was made.
机译：在这项研究中，我们着重于制造具有内部结构（如蜂窝）的双面金属板。不锈钢粉末用于金属注射成型（MIM）工艺中。进行了初步研究，以测量不锈钢原料的粘度，并通过计算机辅助工程（CAE）模拟来预测填充行为。 PE（高密度聚乙烯（HDPE）和低密度聚乙烯（LDPE））和聚丙烯（PP）树脂用于通过塑料注射成型工艺制成具有蜂窝状结构的牺牲嵌件。另外，将这些牺牲的插入部件插入到金属注射模具中，并且进行金属注射成型工艺以形成具有矩形形状的生坯部件。随后，采用脱脂和烧结工艺去除牺牲的聚合物插件。插入物具有能够承受填充压力的合适的刚度。进行了芯偏移分析以预测插入件的变形。使用具有低熔融温度的17-4PH原料。被牺牲的聚合物插入物的玻璃化转变温度将是高等级的，并且该插入物应在MIM过程中保持。通过这些过程，制成具有蜂窝结构的正方形金属板。

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