PRANATA, EDUARDUS RIANDITO PUTRA (2025) ANALISIS EFISIENSI GATING (EDGE, TUNNEL DAN PIN POINT GATE) PADA PROSES INJECTION MOLDING GELAS MENGGUNAKAN SIMULASI AUTODESK MOLDFLOW. S1 thesis, Universitas Mercu Buana.
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Abstract
Injection molding is one of the most commonly used manufacturing methods in the plastics industry to produce high-precision products with optimal production efficiency. A key factor that affects the efficiency of the injection molding process is the gating system design, which directly influences both process efficiency and final product quality. This study aims to analyze three types of gate designs, consist of edge gate, tunnel gate, and pin point gate that using several parameters including filling time, injection pressure, temperature distribution, and the presence of air traps. The method used in this study is numerical simulation with Autodesk Moldflow Moldflow software, which enables the analysis of each parameter. The simulation results show that the pin point gate configuration delivers the most optimal performance, with the fastest filling time of 2.301 seconds, a maximum injection pressure of 76,16 MPa, and a more stable temperature distribution of 297.3°C. Air traps were detected in all three designs, but the pin point gate exhibited the fewest and most localized occurrences. Selecting the appropriate gating system design, especially the use of a pin point gate can significantly improve material flow efficiency, reduce potential defects, and enhance overall product quality. Keywords: Injection Molding, Gating System, Polyethylene Terephthalate (PET), Moldflow Simulation, Production Efficiency Injection molding merupakan salah satu metode manufaktur yang umum digunakan dalam industri plastik untuk menghasilkan produk dengan presisi tinggi dan efisiensi produksi yang optimal. Faktor utama yang mempengaruhi efisiensi proses injection molding adalah desain gating system, yang secara langsung memengaruhi efisiensi proses dan kualitas produk akhir. Penelitian ini bertujuan untuk menganalisis tiga jenis desain gate, yaitu edge gate, tunnel gate, dan pin point gate dengan parameter berupa waktu pengisian (filling time), tekanan injeksi (injection pressure), distribusi temperatur, dan keberadaan air traps. Metode yang digunakan dalam penelitian ini adalah simulasi numerik menggunakan perangkat lunak Autodesk Moldflow yang memungkinkan analisis terhadap masing-masing parameter. Hasil simulasi menunjukkan bahwa konfigurasi pin point gate memberikan performa paling optimal dengan waktu pengisian tercepat sebesar 2,301 detik, tekanan maksimum sebesar 76,16 MPa, dan distribusi temperatur yang lebih stabil yaitu 297,3°C. Air traps terdeteksi pada ketiga desain, namun jumlah dan penyebaran paling minimal terjadi pada desain pin point gate. Pemilihan desain gating system yang tepat, khususnya penggunaan pin point gate, mampu meningkatkan efisiensi pengisian material, mengurangi potensi cacat, dan menghasilkan kualitas produk yang lebih baik. Kata Kunci: Injection Molding, Gating System, Polietilena Tereftalat (PET), Simulasi Moldflow, Efisiensi Produksi
| Item Type: | Thesis (S1) |
|---|---|
| Call Number CD: | FT/MSN. 25 105 |
| NIM/NIDN Creators: | 41323110043 |
| Uncontrolled Keywords: | Injection Molding, Gating System, Polyethylene Terephthalate (PET), Moldflow Simulation, Production Efficiency |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 621 Applied Physics/Fisika terapan > 621.8 Machine Engineering, Machinery/Teknik Mesin 700 Arts/Seni, Seni Rupa, Kesenian > 730 Plastic Arts and Sculpture/Seni Plastik dan Seni Patung > 731 Classical Mechanics, Solid Mechanics/Mekanika Klasik, Mekanika Benda Padat > 731.4 Techniques and Procedures of Sculpture/Teknik Seni Patung, Prosedur Seni Patung > 731.43 Molding/Moulding |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Pandu Risdiyanto |
| Date Deposited: | 26 Sep 2025 01:19 |
| Last Modified: | 26 Sep 2025 01:19 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/98257 |
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