Saputra, Arsyad (2007) Analisa Pengaruh Nose Radius, Kecepatan Potong Dan Gerak Makan Terhadap Kekasaran Permukaan Hasil Proses Machining (Turning) Dengan Pahat Karbida Tanpa Tailstock. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Salah satu faktor penting yang mempengaruhi kualitas fungsi dan keandalan dari suatu komponen adalah kekasaran permukaan. Yaitu ketidakteraturan permukaan dari suatu benda yang diakibatkan oleh kondisi proses pemesinan. Kekasaran permukaan dipengaruhi oleh beberapa faktor, diantaranya parameter pemotongan, geometri pahat, cairan pendingin, material benda kerja dan pahat serta kekakuan dan getaran dari mesin. Dalam penelitian ini digunakan material St 42 dengan bentuk silinder pejal berdiameter 30 mm dan panjang 150 mm. Pahat yang digunakan yaitu jenis insert karbida dengan nose radius 0,4; 0,8; dan 1,2 mm. Sedangkan parameter pemotongan yang digunakan yaitu gerak makan dengan variasi 0,05; 0,10; dan 0,15 mm/put serta kecepatan potong (spindel) yang digunakan 630, 920, dan 1250 rpm. Kedalaman potong yang dipakai konstan 0,5 mm. Penelitian ini dilakukan dengan cara memvariasikan semua faktor diatas, dan benda kerja dipasang di mesin bubut tanpa menggunakan tai/stock. Hasil yang diperoleh dari penelitian akan diolah data dengan software SPSS. 13. Hasil yang diperoleh berupa pengaruh nose radius, kecepatan potong dan gerak makan terhadap kekasaran permukaan, serta persamaan matematis dari proses pemotongan bubut tanpa tailstock dengan berdasarkan analisa factorial, analisis regresi dan analis a grajik. Dengan meningkatnya nose radius dan kecepatan potong maka kekasaran permukaan turun, dengan meningkatnya gerak makan kekasaran permukaan akan naik
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One of the important factors that affect the quality of function and reliability of a component is surface roughness. It is the surface irregularity of an object caused by the machining process conditions. Surface roughness is influenced by several factors, including cutting parameters, tool geometry, coolant, workpiece and tool materials as well as the stiffness and vibration of the machine. In this study, St 42 material was used with a solid cylinder shape with a diameter of 30 mm and a length of 150 mm. The tool used was a carbide insert type with a nose radius of 0.4; 0.8; and 1.2 mm. While the cutting parameters used were feed motion with variations of 0.05; 0.10; and 0.15 mm/rev and cutting speeds (spindle) used were 630, 920, and 1250 rpm. The depth of cut used was a constant 0.5 mm. This study was conducted by varying all the factors above, and the workpiece was mounted on a lathe without using tai/stock. The results obtained from the study will be processed using SPSS software. 13. The results obtained are the effect of nose radius, cutting speed and feed motion on surface roughness, as well as the mathematical equation of the lathe cutting process without tailstock based on factorial analysis, regression analysis and a graphical analysis. With increasing nose radius and cutting speed, the surface roughness decreases, with increasing feed motion the surface roughness will increase
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSM 671.35 Sap a-1 2007 (weeding) |
| Uncontrolled Keywords: | radius pahat, kecepatan potong, gerak makan, kedalaman potong, kekasaran permukaan; nose radius, cutting speed, feeding, depth of cut, surface roughness |
| Subjects: | T Technology > TN Mining engineering. Metallurgy > TN23 Metal cladding. T Technology > TN Mining engineering. Metallurgy > TN690 Metallography. Physical metallurgy T Technology > TN Mining engineering. Metallurgy > TN752.Q4 Metals--Quenching |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 09 Oct 2025 01:37 |
| Last Modified: | 09 Oct 2025 01:37 |
| URI: | http://repository.its.ac.id/id/eprint/128530 |
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