Perancangan cetakan injection molding untuk proyektil frangible ammo 4

Syamra, Aprilio Mori (2022) Perancangan cetakan injection molding untuk proyektil frangible ammo 4. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Proyektil frangible merupakan proyektil yang akan hancur ketika menghantam permukaan material yang lebih keras. Salah satu cara fabrikasi proyektil ini adalah dengan proses injection molding yang menghasilkan proyektil berbahan dasar komposit. Untuk menghasilkan proyektil yang berkualitas baik dengan proses tersebut, perlu dilakukan perancangan cetakan proyektil yang baik. Pada tugas akhir ini, dilakukan perancangan desain cetakan lengkap dari produk dan penentuan parameter injeksi untuk mendapatkan produk yang sesuai dengan spesifikasi yang telah ditetapkan. Tahap awal yang dilakukan adalah memodelkan proyektil frangible secara 3D menggunakan software Autodesk Inventor Professional 2022 agar diperoleh data 3D Computer-Aided Design (CAD). Selanjutnya, berdasarkan data 3D CAD yang diperoleh, dilakukan perencanaan dan perhitungan cetakan hingga diperoleh gaya cekam mesin yang harus lebih besar daripada gaya injeksi. Tahap berikutnya adalah membuat gambar 3D assembly dan explode mold serta 2D drawing komponen cetakan. Selanjutnya, dilakukan penentuan setting parameter proses injeksi untuk dianalisis menggunakan software Autodesk Moldflow Adviser, seperti data material umpan yang digunakan, yaitu Cu-PA12 Ecomass Technology Series 1700CO94, serta spesifikasi mesin injection molding yang digunakan, yaitu ARBURG ALLROUNDER model 270 C Golden Edition. Dari perancangan ini diperoleh gambar 3D CAD assembly dan explode serta gambar 2D teknik produk dengan dimensi keseluruhan sebesar 320 × 200 × 232,38 mm, serta spesifikasi utama dari keseluruhan komponen utama mold. Jenis mold base yang digunakan adalah two-plate dengan 4 buah cavity proyektil, dengan referensi berdasarkan konstruksi manufaktur FUTABA. Parameter injeksi yang diperoleh dari hasil simulasi, validasi perhitungan analitik, serta eksperimen purwarupa adalah mold temperature sebesar 85 °C, melt temperature sebesar 253,8 °C, cycle time sebesar 19,45 detik, dan injection pressure aktual sebesar 44,91 MPa.
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Frangible projectile is a type of projectile that will rupture when it hits a harder material. One of the ways to fabricate this projectile is through the injection molding process, which produces a composite-based projectile. To produce high-quality projectiles using this process, it is necessary to design an appropriate projectile mold. In this final project, a complete mold design for the product was developed, and the injection parameters were determined to meet the specified requirements. The initial step was to model the frangible projectile in 3D using Autodesk Inventor Professional 2022 software to obtain 3D Computer-Aided Design (CAD) data. Based on the 3D CAD data, mold calculations were then performed to determine the required clamping force, which must be greater than the injection force. The next stage involved creating 3D assembly and exploded mold drawings, as well as 2D drawings of the mold components. Subsequently, the injection process parameter settings were determined and analyzed using Autodesk Moldflow Adviser software, including the feed material data, namely Cu-PA12 Ecomass Technology Series 1700CO94, and the specifications of the injection molding machine, namely the ARBURG ALLROUNDER Model 270 C Golden Edition. From this research, 3D CAD assembly and exploded mold drawings, as well as 2D product drawings with overall dimensions of 320 × 200 × 232.38 mm, were obtained, along with the main specifications of the major mold components. The mold base type used was a two-plate mold with four projectile cavities, based on the construction reference of FUTABA Manufacturing. The injection parameters obtained from simulation results, analytical calculations, and prototype experiments were a mold temperature of 85 °C, a melt temperature of 253.8 °C, a cycle time of 19.446 seconds, and an actual injection pressure of 44.91 MPa.

Item Type:	Thesis (Other)
Additional Information:	671.2 Sya p-1
Uncontrolled Keywords:	Autodesk Moldflow, Injection Molding, Komposit, Proyektil , Autodesk Moldflow, Composite, Injection Molding, Projectile
Subjects:	T Technology > TP Chemical technology > TP1151 Special molding and casting processes
Divisions:	Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User:	magang .
Date Deposited:	02 Oct 2026 08:20
Last Modified:	02 Oct 2026 08:20
URI:	http://repository.its.ac.id/id/eprint/145213

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