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All Journal Jurnal Inovasi Teknologi Terapan
Yoga Aryatama
Politeknik Manufaktur Negeri Bangka Belitung
Agriculture, Biological Sciences & Forestry Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

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Analisis Aliran Cetakan Paving Block Menggunakan Material Polypropylene (PP) Yoga Aryatama; Muhammad Yunus; Subkhan Subkhan
Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v4i2.392

Abstract

This study presents the design and flow analysis of a polypropylene (PP) injection mold for paving block production as a cost-efficient and lightweight alternative to conventional metal molds. The research consists of a field survey at Tacon company, product geometry evaluation, mold design using SolidWorks, and flow simulation to assess mold performance. Simulation results indicate that the two-plate mold with a 2 mm wall thickness can withstand loads up to two stacked paving blocks (40 N) without deformation. The filling time was recorded at 1.6491 seconds, with a maximum injection pressure of 49.03 MPa, and cooling time ranging between 5.14–10.64 seconds. The sink mark value was very small (0.0031 mm) and located in non-critical areas, while air traps appeared only at the cavity edges. These findings confirm that PP can be effectively used as a mold material for paving blocks, providing stable melt flow behavior, good product quality, and efficient cooling cycles. This research contributes to the development of polymer-based mold technology for affordable, lightweight, and locally manufacturable paving block production.
Co-Authors Muhammad Yunus Subkhan Subkhan