Rambey, Mustafid Amna (2018) Simulasi Proses Pemotongan Baja Karbon Rendah AISI 1018 dengan Mesin Bubut Menggunakan Metode Elemen Hingga. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Tegangan geser dan gaya pada permukaan material dan perkakas potong dihasilkan oleh sudut dan kedalaman potong yang berbeda. Secara khusus dua analisis berbeda dilakukan untuk membandingkan pengukuran gaya potong dan tegangan geser yaitu dengan kedalaman, sudut potong, dan tipe pemotongan tertentu. Proses simulasi permesinan dilakukan dengan menggunakan alat potong single point High Speed Steel (HSS). Selama proses machining deformasi sangat terkonsentrasi di zona yang sangat kecil dan tegangan yang dihasilkan di zona deformasi mempengaruhi benda kerja dan alat. Analisa dilakukan pada material benda kerja AISI 1018 mild steel dengan menggunakan perkakas potong AISI T15 High Speed Steel. Variabel yang digunakan pada penelitian ini antara lain adalah sudut serpih (rake angle) 15o, 0o, dan -15o, kemudian kedalaman potong yaitu 1 mm dan 1.5 mm, dan yang terakhir adalah membandingkan dua tipe pemotongan yaitu orthogonal (tegak lurus) dan oblique (miring). Pada penelitian ini telah diteliti bagaimana gaya potong dan tegangan geser pada perkakas potong dan material uji pada saat proses pemotongan dan menggunakan metode smooth particle hydrodinamics. Dari hasil simulasi menunjukkan penurunan gaya potong terjadi ketika sudut serpih perkakas mengalami penurunan dari 15o ke -15o, Nilai tegangan geser maksimum diamati memiliki nilai tertinggi pada sudut 15odengan kedalaman 1.5 mm, kemudian nilai tegangan geser terendah diamati pada sudut serpih 15odengan kedalaman potong 1mm. Proses simulasi juga telah dilakukan untuk mengamati pengaruh dari kedalaman potong dan tipe pemotongan.
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The shear stress and force on the surface of the material and cutting tools are produced by different angles and cutting depths. In particular two different analyzes were performed to compare the measurement of cut and shear stresses with the depth, cutting angle, and certain types of cuts. Machining simulation process is done by using single point tool High Speed Steel (HSS). During the machining process deformation is highly concentrated in very small zones and the voltage generated in the deformation zone affects workpieces and tools. The analysis was performed on AISI 1018 mild steel workpiece material using cutting tool AISI T15 High Speed Steel. The variables used in this study include rake angle 15o, 0o, and -15o, then cutting depth is 1 mm and 1.5 mm, and the last is comparing two types of cutting that is orthogonal (perpendicular) and oblique ( tilt). In this research has been studied how the cut and shear stress on cutting tool and test material at the time of cutting process and using method of smooth particle hydrodynamics. From the simulation results showed a decrease in cutting force occurs when the angle of the tool shoot decreases from 15o to -15e, the maximum shear stress value observed has the highest value at an angle 15o of1.5 mm depth of cut, then the lowest shear stress value is observed at the rake angle 15o with 1mm cutting depth. The simulation process has also been performed to observe the effect of cutting depth and cutting type.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSMt 671.53 Ram s-1 3100018074242 |
| Uncontrolled Keywords: | Perkakas potong single point, alat HSS, Analisis Elemen Hingga, Tegangan, Gaya Potong, Smooth Particle Hydrodinamics. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method T Technology > TJ Mechanical engineering and machinery > TJ1185 Metal-cutting--Problems, exercises, etc. T Technology > TJ Mechanical engineering and machinery > TJ1186 Metal-cutting tools. T Technology > TS Manufactures |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Mustafid Amna Rambey |
| Date Deposited: | 21 Feb 2018 02:26 |
| Last Modified: | 30 Apr 2020 12:25 |
| URI: | http://repository.its.ac.id/id/eprint/49324 |
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