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Possibility for Replicating Mechanoscopic Surface Marks in the Hybrid Vacuum-Pressure Casting Process
Mariusz Frankiewicz1, Karol Kobiela1, Tomasz Kurzynowski1
1Centre for Advanced Manufacturing Technologies (CAMT-FPC), Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Lukasiewicza 5, 50-371 Wrocław, Poland.
Polymers
|April 3, 2021
Summary
Vacuum casting accurately replicates surface details on polymer components. This study evaluated three vacuum casting variants, including a hybrid method, for precise mechanoscopic mark replication without surface artifacts.
Area of Science:
- Materials Science
- Manufacturing Engineering
- Polymer Processing
Background:
- Vacuum-pressure casting is a method for producing small batches of polymer components, primarily from thermosetting plastics like polyurethane and epoxy resins.
- This technique excels at accurately reproducing the geometric structure of master pattern surfaces, crucial for mold manufacturing.
- Replicating fine surface details, such as mechanoscopic marks, is essential for various applications, demanding high fidelity in the casting process.
Purpose of the Study:
- To analyze and evaluate the influence of parameters from three vacuum casting variants on the quality of cast parts.
- To assess the replication accuracy of mechanoscopic marks without introducing additional surface artifacts.
- To investigate a hybrid vacuum-pressure casting process specifically developed for enhanced replication.
Main Methods:
- Utilized three vacuum casting variants, including a novel hybrid vacuum-pressure casting process.
- Investigated the process stages and analyzed critical parameters influencing replication.
- Evaluated replicas for porosity and reproduction quality using computed tomography (CT) and comparative light microscopy.
Main Results:
- The study identified key process parameters affecting the quality and accuracy of replicated mechanoscopic marks.
- The hybrid vacuum-pressure casting variant demonstrated potential for high-fidelity replication.
- Analysis revealed the impact of process parameters on surface artifact generation and overall replica quality.
Conclusions:
- Vacuum casting, particularly the hybrid variant, offers a viable method for accurate replication of fine surface features.
- Careful control of process parameters is essential to minimize porosity and prevent artifacts during replication.
- The findings provide valuable insights for optimizing vacuum casting processes for high-precision component manufacturing.
