摘要(英) |
The demand for high-strength lightweight products has become increasingly common in the market. Among various materials, plastics are known for their light weight, low cost, and ease of forming, while metals offer high strength and good thermal conductivity, making them widely used in
industries. Therefore, this study explores the process of combination of heterogeneous materials through injection molding. Initially, components are designed using SolidWorks, followed by simulation and analysis using
Moldex3D software to examine the displacement caused by continuous carbon fibers during the melt-filling process. Subsequently, Nylon 6, also known as Polyamide 6 (PA6), and aluminum components are manufactured using the
injection molding process to combine the two dissimilar materials, aiming to reduce secondary processing and leverage their respective advantages.Additionally, continuous carbon fibers are incorporated into the composite
material to enhance the performance of the specimens. Finally, tensile tests are conducted to analyze and discuss the specimens’ tensile strength.
The Moldex3D simulation results demonstrate the feasibility of the process involving continuous carbon fibers wound at X type around aluminum components, effectively securing the fibers to the components and preventing displacement flaws in the specimens. The experimental process used in this study involves insert molding in over-molding injection, where continuous
carbon fibers are wound onto aluminum components to form performance parts,which are then placed in the mold cavity and filled with plastic. Upon completion of the molding process, parameters are determined using the Taguchi
method with an L9(34) orthogonal array. After the specimens are produced,tensile tests are conducted.
The final tensile test results show that PA6 reinforced with continuous carbon fibers exhibits a slight increase in tensile strength compared to pure PA6.Moreover, the presence of brittle continuous carbon fibers in the specimen alters
the ductile nature of PA6. The presence of aluminum inserts also affects the flow of the melt, leading to excessive residual stresses around the inserts, ultimately
resulting in fracture within that region during tensile testing. These findings are expected to be a reference for optimizing the process in future research. |
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