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Eko Yudo
Politeknik Manufaktur Negeri Bangka Belitung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Journal : Jurnal Inovasi Teknologi Terapan

 1 
Analisis Pengaruh Nilai Parameter Proses Pemesinan Milling Terhadap Kekasaran Permukaan Almunium 7075 Anan Mahendra; Eko Yudo; Zaldy Kurniawan
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract

Miiling machining is one of the machining processes that are widely used for the manufacture of a component of goods with a milling machining process, the time required to make components should be as minimal as possible so that high production capacity can be achieved. The maximum cutting process parameter will result in a high rate of material feeding, so it can also result in the appropriate surface roughness (Ra) desired. The purpose of this study is to obtain the lowest surface roughness value produced by the process from CNC milling with the parameters used and to determine the level of roughness of the aluminum surface using the depth of cut, cutting speed, and rotation speed. The method used is the Taguchi method with three parameters, namely spindle rotation (Rpm), Feeding Depth, Feeding Speed taken from this study the results of a tool data called roungnes tester obtained and directly retrieving the most optimal value data of 0.239 Ra which has been averaged. Then in the percentage up to these three factors that have been done.from the results have been obtained have a small prenstasi of 30% and obtained a response value of less than 1%. This taguchi method is to improve product quality and process in about the same time. The results of this optimization are used to try the operator's consideration when determining the combination to get the optimal value possible.
Pengaruh Jenis Pendingin Dan Variasi Sudut Potong Terhadap Kekasaran Permukaan Bubut Baja SCM 440 Muhammad Angga Pratama Angga; Zaldy Kurniawan; Eko Yudo
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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Abstract At present it is not surprising that industrial competition continues in different parts of production according to the form of business. This is entirely due to the development of science and technology which is increasingly advanced day by day. As well as in the field of machining, namely machine tools and production, production machines that play an important role in the course of industrial activities, one of which is the lathe. The material used in this test is alloy steel SCM 440, this material is medium carbon chromium molybdenum alloy steel, SCM 440 alloy steel contains chromium and molybdnum. Has an alloy composition of 0.38-0.43% C, 0.90-1.20% Cr, 0.15-035% Si, 0.60-0.85% Mn, 0.15-0.30% Mo, and 0.03 max p/s. The diameter of the BK tube is Ø25 x 100 mm. This study uses the Taguchi method. The parameters used are the angle of cut, type of coolant and feeding speed. The optimum parameters for obtaining a low roughness value are the cutting angle of 13°, the type of cooling cutting oil and the feeding speed of 0.040 mm. With a S/N ratio of -10.396.
Karakteristik Serat Tandan Kosong Kelapa Sawit Sebagai Komposit Resin Polyester Untuk Mengetahui Nilai Absorpsi Suara Firzan Mar'i Akbar; Robert Napitupulu; Eko Yudo
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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The development of composite materials currently not only with synthetic reinforcing materials but also with natural fiber reinforcing materials, because natural fibers have diverse characteristics. In this research, looking at the characteristics of Oil Palm Empety Fruit Bunch (OPEFB) fiber which has a high cellulose and hemicellulose content, which is generally used for soundproofing materials. So a composite research will be made from the main material of OPEFB  fiber with polyester resin as the matrix. The purpose of this research is to determine the sound absorption value of the composition of the mixture of OPEFB  fiber and resin. The method used is the hand lay-up method combined with the Taguchi Method on the L4(23) orthogonal matrix design used as a reference for the sound absorbing composite manufacturing process. The L4(23) orthogonal matrix design is used because there are three process parameters that have two levels. Repetition is repeated three times. The process parameters are the volume fraction of OPEFB  fiber and resin, the length of fiber soaking with NaOH, and the thickness of the composite. The research results from three repetitions obtained the highest value in sample I with a mean value = 77.93 dB at a frequency of 2000 Hz, and the lowest value in sample III with a mean value = 32.97 dB at a frequency of 125 Hz.
Co-Authors Adhe Anggry Anan Mahendra Angga Satria Ariyanto Ariyanto Bimas E Saputra Dersi Julianto Dimas putra utama Eko Sulistyo Erwansyah Erwansyah Fahrizal Fahrizal Firzan Mar'i Akbar Husman Husman ibnu salikin Idiar Ikhya Naufal Jondi Supriyandi Muhamad Fikri Burli Muhammad Angga Pratama Angga Muhammad Haritsah Amrullah Muhammad Reza Mukhib Nanda Pranandita Odidio Pratama Odidio Oktriadi, Yudi Ramli Ramli Ridho Rosmansyah Rina Melati Robert Napitupulu Sateria, Angga Sugiyarto Sugiyarto Sugiyarto Sugiyarto Trisna Fitri Mutiari Yuliyanto Zakdi Sirwansyah Suzen Zaldy Kurniawan Zulfitriyanto, Zulfitriyanto