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Sanurya Putri Purbaningrum
Teknologi Rekayasa Otomotif, Politeknik STMI Jakarta, Jakarta
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OPTIMASI DESAIN MOLD COVER TOWING FRONT BUMPER MELALUI SIMULASI MOLDFLOW UNTUK MENGURANGI CACAT PRODUK Abdul Wahid Arohman; Andi Muhammad Hanif Tjoppo; Edwin Sahrial Solih; Sanurya Putri Purbaningrum; Desy Agustin; Fredy Sumasto
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.725

Abstract

Plastic injection molding is a method of forming a product that uses plastic (Polymer) as the main material. The resulting product must have as few defects as possible because it will reduce the quality value and customer satisfaction. In this study, the mold was made for the Front towing bumper cover product with the design and simulation stages. The simulation process uses Moldflow Software to identify possible product defects that occur with variations in melt temperature of 200, 240, and 280 (°C). The result obtained in this simulation is the optimal melt temperature for producing products in the injection molding process by selecting a temperature of 240°C. This temperature is the most optimal because it has faster fill time and cooling time, with an optimum percentage of 25% compared to the temperatures of 200 and 280 (°C). In potential defects such as air traps, weldlines, and shinkmarks, a temperature of 240 (°C) has fewer potential defects than 200 and 280 (°C).
EVALUASI DESAIN RANCANG BANGUN PUNCH DAN DIE MENGGUNAKAN SIMULASI STATIK SEBAGAI QUALITY CONFIRMATION Edwin Sahrial Solih; Ahmad Arif; Sanurya Putri Purbaningrum; Desy Agustin; Abdul Wahid Arohman; Fadhil Fadhlurrohman Nurhadi; Fredy Sumasto
Scientific Journal of Mechanical Engineering Kinematika Vol 10 No 1 (2025): SJME Kinematika Juni 2025
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v10i1.727

Abstract

Modern manufacturing industries demand high efficiency and consistent product quality, especially in metal forming processes such as stamping dies. An accurate punch and die design essential to ensure the success of bending operations, particularly for metal-based products like forks. This study aims to evaluate the structural reliability of punch and die designs through a static simulation approach as a quality confirmation method prior to manufacturing. The methodology includes die geometry design, selection of SKD11 tool steel based on its mechanical properties, and stress analysis using SolidWorks software under a static load of 35 tons. The stress distribution was analyzed using the Von Mises method, and the Factor of Safety (FOS) was calculated as a design safety indicator. Simulation results show that the maximum stress on the die was 9.91 × 10⁷ N/m² and on the punch was 1.01 × 10⁸ N/m², both well below the yield strength of SKD11 (6.88 × 10⁸ N/m²). The FOS values of 3.47 for the die and 3.26 for the punch confirm structural safety. Validation through trial dies and 3D scanner measurements indicated dimensional deviations within the acceptable tolerance range. This approach effective for improving design accuracy and production efficiency in stamping die manufacturing.
Co-Authors Abdul Wahid Arohman Ahmad Arif Ahmad Rifai Al Fatir, Aditya Ammar Fakhrurozi Nazih Amrin Rapi Andi Muhammad Hanif Tjoppo Arif Muttaqin Arrofah, Muhammad Arif Awaludin, Sarip Desy Agustin Dianasanti Salati Fadhil Fadhlurrohman Nurhadi Hasan Sudrajat Hendi Lilih Wijayanto Ibnu Syihab Imansuri, Febriza Indah Kurnia Mahasih Lianny Indra Rizki Pratama johannes johannes Nurhadi, Fadhil Fadhlurrohman Ridho Ridho Hans Gurning Ridho Hans Gurning Rizki Kurniawan Sartono Putro Satiman , Bayu Satiman, Bayu Satria, Adam Satriatama, Adrian Sidiq , Dirham Solih, Edwin Sahrial Sumasto, Fredy Vebriyanti Hayoto Yudhistira, Hilmi