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Sobron Lubis
Department Of Mechanical Engineering, Universitas Tarumanagara
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Journal : Jurnal Teknik

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Pemilihan Parameter Proses Pembubutan Dalam Menentukan Kekasaran Permukaan N7 Baja ST 41 Lubis, Sobron; Kusuma , Heru Budi; Widjaya, Alvian Hartanto; Wibowo, Harry; Ken, Richard; Ariyanti, Silvi
Jurnal Teknik Vol 23 No 2 (2025): Jurnal Teknik
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37031/jt.v23i2.455

Abstract

The turning process is a machining process on a cylindrical workpiece to produce a material profile as designed. The surface of the workpiece being machined produces rough scratches. The surface roughness of the workpiece is an indicator of the quality of the resulting surface. In machine construction, the surface roughness value has been determined by the designer according to the construction needs.The manufacturing process must be capable of forming metal and producing predetermined surface roughness values. The surface roughness value of the workpiece is influenced by several factors such as cutting parameters, cutting tools, coolant system, etc. This research was conducted to determine cutting parameters, especially cutting conductivity on the resulting surface roughness value. The study was carried out using a lathe and a carbide-type cutting tool to cut ST 41 steel. The cutting parameters were cutting speeds of 200, 215, 230, 245, and 260 (m/min), feeding, and depth of cut. Before machining is carried out, the cutting possibility of N7 is determined, namely 1.6 microns, based on the design of the shaft construction. To determine the roughness value to be achieved, the turning process is carried out by varying the cutting speed, cutting pass 0.1, 0.2, and 0.3 (mm/rev), while the depth of cut is 0.5 mm. After the cutting process is carried out, the surface roughness of the workpiece is measured. From the results of observations and measurements, it was found that the parameters closest to the desired surface roughness N7 (1.6) were cutting speed (Vc) 245 (m/min), feeding (f) 0.1 (mm/rev), and depth of cut (a) 0.1 mm with a roughness value of 1.63 µm.
Co-Authors Abrar Riza, Abrar Adianto Adianto Adianto Adianto Aghastya Wiyoso Agung, Dani Putra Alfa, Bonitasari Nurul Andry Christopher Ardiansyah, M. Irsal Benaya, Benaya Calvin Chardly Pospos Calvin Chen Chistianto, Felix Christianto, Reuben David Sutanto David Sutanto David Sutanto Diputera H, Ayra Diputra, Ayra Elvan, Elvan Erwin Siahaan Han, Han Hanry, Michael Harry Wibowo Hidayat, Nathan Ferdiantino Irsal, M. Ken, Richard Keven Poul Kusuma , Heru Budi Lam, Silvester Laurenzo, Michael Michel, Jhon Novan Satyawardhana P.A, Alifya. Putra, Hardy Sari Putri A, Alifya Qosidh, Evan Rico Wiguna Ronald Ronald Ronald Ronald Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan Rosehan, Rosehan Rumbiak, Arthasasta Sharon Salim, Victor Siahaan, Erwin Siahaan, Erwin Silvi Ariyanti Silvi Ariyanti Sofyan Djamil Sofyan Djamil Sofyan Djamil Sofyan Djamil Steven Darmawan Steven Darmawan, Steven Wasistha, Briangga Wira Widjaya, Alvian Hartanto Winardi, Stevanus Aditya Yehezkiel Kurniawan Zebua Yolanda Yolanda Yolanda Yolanda, Yolanda Zebua, Yehezkiel Kurniawan Zebua, Yehezkiel Kurniawan