Firnanda, Teguh (2025) SIMULASI PROSES EQUAL CHANNEL ANGULAR PRESSING (ECAP) PADA BAJA AISI 1006 BERBASIS PARAMETER TERKONTROL MENGGUNAKAN METODE ELEMEN HINGGA. S1 thesis, Fakultas Teknik Universitas Sultan Ageng Tirtayasa.
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Abstract
Equal Channel Angular Pressing (ECAP) is a manufacturing process that aims to improve the mechanical properties of materials through superplastic deformation to obtain ultrafine grain sizes. Strengthening occurs due to the accumulation of dislocations in the form of twinning. The ECAP process has a high level of complexity and is influenced by various parameters, including channel angle and temperature, which are the focus of this study. Simulation of these parameters using finite element method-based engineering software, such as ANSYS, is important to understand the stress distribution in the ECAP sample. For simulation purposes, supporting software, such as Autodesk AutoCAD, is required to create three-dimensional (3D) geometries. A total of three geometries were created according to different channel angle variations, then imported for simulation preparation. Channel angle simulations were carried out at 90°, 105°, and 120°, while the temperature variations used were 600°C, 683°C, 750°C, 800°C, 930°C, and 1100°C. The results showed that variations in channel angle significantly affected the maximum shear stress, equivalent stress, and strain homogeneity compared to temperature variations. The highest shear stress occurred at a channel angle of 90° and a temperature of 600℃, which was 1542 MPa and the lowest shear stress occurred at an angle of 120° and a temperature of 1100℃, which was 1194.8 MPa. While the average highest equivalent stress occurred at a channel angle of 90° and a temperature of 600℃, which was 2758.3 MPa and the lowest equivalent stress occurred at an angle of 120° and a temperature of 1100℃, which was 2139.3 MPa with the same distribution as the maximum shear stress. The highest strain homogeneity was obtained in the ECAP sample with a channel angle of 120° and a temperature of 1100℃ with an inhomogeneity index of 2.738.
| Item Type: | Thesis (S1) | |||||||||
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| Additional Information: | Simulasi ECAP menunjukkan pengaruh variasi sudut saluran dan temperatur penekanan terhadap distribusi tegangan dan deformasi pada baja AISI 1006. Sudut channel yang lebih kecil menghasilkan deformasi plastis yang lebih besar selama proses ECAP, sedangkan temperatur yang lebih tinggi menurunkan resistansi deformasi dan mempermudah aliran material. Baja AISI 1006 digunakan sebagai material ECAP karena sifatnya yang lunak dan mudah dibentuk. Hasil simulasi ini dapat digunakan untuk mengoptimalkan proses produksi komponen berkekuatan tinggi dengan mikrostruktur halus, seperti pada industri otomotif dan pembuatan pipa. | |||||||||
| Subjects: | Q Science > Q Science (General) Q Science > QC Physics T Technology > T Technology (General) T Technology > TD Environmental technology. Sanitary engineering T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures U Military Science > U Military Science (General) |
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| Divisions: | 03-Fakultas Teknik > 27201-Jurusan Teknik Metalurgi | |||||||||
| Depositing User: | Teguh Firnanda | |||||||||
| Date Deposited: | 28 Jul 2025 08:53 | |||||||||
| Last Modified: | 28 Jul 2025 08:53 | |||||||||
| URI: | http://eprints.untirta.ac.id/id/eprint/52933 |
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