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All Journal Rekayasa Mesin LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Prosiding Semnastek ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Rekayasa Mesin Jurnal Akta JTT (Jurnal Teknologi Terpadu) Machine : Jurnal Teknik Mesin Manutech : Jurnal Teknologi Manufaktur Sprocket : Journal of Mechanical Engineering Integrated Science Education Journal Dulang: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Inovasi Teknologi Terapan Jurnal Inovasi Teknologi Terapan
Zaldy Kurniawan
Teknik Mesin, Politeknik Manufaktur Negeri Bangka Belitung
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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VARIASI SUDUT POTONG DAN KECEPATAN POTONG TERHADAP LAJU PEMAKANAN MATERIAL SCM 440 Arianda Pratama; Zaldy Kurniawan; Husman -; Ilham Ary Wahyudie
Machine : Jurnal Teknik Mesin Vol 9 No 2 (2023): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jm.v9i2.3611

Abstract

During the workpiece turning process, several factors affect the final workpiece, such as the cutting angle and cutting speed. The purpose of this study was to determine the effect of variations in cutting angle and cutting speed on the material consumption rate of SCM 440. The method used in this study is the Response Surface Methodology (RSM), with a two-parameter design, each of which has three levels for each parameter variation. . The results of data analysis obtained eigen values ​​with different signs (positive and negative) which indicated that the stationary point values ​​were in the form of saddle points with a stationary point values of x1 (cutting angle) of -1.686 and x2 (Vc) of 0.199. From the uncoded process, the optimal value for the MRR factor is obtained, namely the cut angle of 10.64° and Vc of 15.28 m/min. The optimum feed rate for SCM 440 material is obtained at an optimal value of neither minimum nor maximum or a saddle point shape at a cutting angle cut of 10.64° and Vc of 15.28 m/min with an MRR area of ​​300-400 mm3/minute.
Pengaruh Sudut Part Build Orientation Z-Direction Terhadap Kuat Tarik Spesimen Uji Standar Astm D638 Type IV Menggunakan Filamen Pla+ Pristiansyah, Pristiansyah; Yuliyanto, Yuliyanto; Masdani, Masdani; Sirwansyah Suzen, Zaldy; Kurniawan, Zaldy; Sugianto, Sugianto; Hasdiansah, Hasdiansah; Feriadi, Indra; Pranata, Yogi; Napitupulu, Robert; Harwadi, Harwadi
Manutech : Jurnal Teknologi Manufaktur Vol. 15 No. 02 (2023): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v15i02.279

Abstract

This study will try to investigate variations in the angle of the Z-direction build part by using a 3D Printer with Fused Deposition Modeling (FDM) technology made from PLA + Sugoi. This study uses a 0.4mm nozzle with a Bowden type extruder. This study uses a PLA+ filament from the Sugoi brand with a nozzle of 0.4 mm, diameter filament 1,75 mm, 3D Printer with Fused Deposition Modeling (FDM) technology used is Creality Ender 3 V2 with process parameter settings in slicing software using a layer thickness of 0.30 mm, Top solid Layer 5, Bottom Solid Layer 5, Fill density 100%, cooling speed 100%, and flowrate 100%, nozzle temperature 205°C, and bed temperature 60°C. Variation in angle Part build Z-direction is proven to have a significant difference in Tensile strength with a difference of 10° resulting in a difference in Tensile strength of 15 MPa, where the highest tensile strength is 67.50 MPa with part build Z-direction at an angle of 80°, and the lowest tensile strength of 52.50 MPa with a Z-direction part build angle at an angle of 70°.
Optimasi Sudut Baji, Kecepatan Pemakanan & Rpm Terhadap Kekasaran Permukaan Material SCM 440 Dengan Metode Respon Surface (RSM) Saputra, Deri; Kurniawan, Zaldy; Husman, Husman
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v1i2.27

Abstract

The development of manufacturing technology has developed so rapidly. In this study, SCM 440 steel material was used, which is an alloy steel of chromium molybdenum. This steel has the advantages of stable composition,low harmful elements,high steel purity. Surface roughness is important, surface roughness is defined as the irregularity of surface configuration in an object resulting from a finishing process. This study aims to determine the influence of process variables on the surface roughness rate of SCM 440 material by varying the total cutting angles of 700,750 and 800 then variations in feeding speed of 0.08mm, 0.09mm, and 0.10mm and spindle speed or RPM, namely 160,220, and 280 puts / min in the RSM method. The Rspon Surface method is a set of mathematical and statistical techniques that are useful for analyzing problems where several independent variables affect the response variable and determine the optimal value of the process variable. From the results of the study, the value of the Second order yˆ = + 0.092224 X1² + 0.208515 X2² - 0.03661 X3² was obtained. With stationary point value X0 = ( total Cut angle ) = - 0.382409, X0 = (feeding) = 0.161715, X0 = (RPM) = 0.578250. and found the optimal values of Wedge Angle (78.212), Feeding Speed (0.095 mm) and RPM (278.29 put/min). Then it can be analyzed the optimal value that is different from the value of the RSM method framework and if the values are the same then the research fails.
Analisis Pengaruh Nilai Parameter Proses Pemesinan Milling Terhadap Kekasaran Permukaan Almunium 7075 Mahendra, Anan; Yudo, Eko; Kurniawan, Zaldy
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v1i2.35

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 Angga, Muhammad Angga Pratama; Kurniawan, Zaldy; Yudo, Eko
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v1i2.37

Abstract

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.
Analisis Pengaruh Kecepatan Pemotongan dan Kedalaman Pemotongan Terhadap Kekasaran Permukaan Baja SKD11 Dengan Metode RSM Febriyansa, Agus; Kurniawan, Zaldy; Yudo, Eko
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 1 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i1.137

Abstract

In the current development of the manufacturing industry, the quality of each product must be met. One machining process, namely CNC lathe, can meet these demands. Surface roughness is one of the values that must be considered again. The minimum surface roughness indicates a very good CNC machining process, because the smaller the surface roughness value of a product, the better the resulting product value. To achieve that all need to du the turning in the right process variables. The process variables that are varied are cutting speed (m/mnt) and depth of cut (mm). Each variable has three levels, mnamely cutting speed 240, 250, and 260. For depth 0,1, 0,15, and 0,2. The research method used to obtain surface roughness values is the response surface methodology (RSM) with a central composite design. The material used in this research is SKD 11 steel. The minimum roughnees is at acutting speed of 240 m/min and a depth of cut of 0,325 mm, the roughness value abtained is an average of 1,627 (µm). for maximum roughness at a cutting speed of 230 m/min and depth of cut of 0,225 mm, the roughness value obtained of 1,975 (µm).
Optimasi Karakteristik Komponen Waterjet thruster terhadap Gaya Dorong Menggunakan Metode Taguchi Seva, Marcell; Kurniawan, Zaldy; Hasdiansah, Hasdiansah
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 2 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i2.145

Abstract

Waterjet thruster is a technological breakthrough in ship propulsion system. The propulsion system has a very significant influence on ship operations. The waterjet thruster system consists of an inlet, waterjet pump, and turbo outlet. 3D Printing is one of the technological breakthroughs in the field of layer-by-layer manufacturing. 3D Printing is efficient in the world of manufacturing in making mechanical components, even prototypes. The combination of component characteristics will be arranged using Taguchi method with L9(33) orthogonal matrix. This study aims to optimize the combination of waterjet thruster component characteristics. It is concluded that the characteristics of waterjet thruster components have an influence on the thrust force produced. The highest thrust force is in the 9th experiment with a thrust force of 2,281 Newton using a combination of the number of inlet blades of 5 pieces, the second type impeller, and the number of turbo outlet blades totaling 3 pieces.
Pengaruh Kedalaman Pemakanan dan Kecepatan Potong pada Pembubutan Finishing Material Baja SKD 11 terhadap Kekasaran Permukaan Benda Bubutan Restu, Ilham; Kurniawan, Zaldy; Erwansyah, Erwansyah
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 1 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i1.176

Abstract

One important factor in achieving good quality value for a product in the machining process is to look at the level of roughness produced in the machining process. This research aims to determine the effect of feed depth and cutting speed on surface roughness. The process variables used in this research are feeding depth (mm) and cutting speed (m/min). Each variable has 3 levels, namely feeding depth of 0.5, 0.6 and 0.7 mm. Cutting speed 65, 70 and 75 m/min. In this research method, researchers used the full factorial method. The material used in this research is SKD 11 steel. The conclusion obtained from the research is that the minimum surface roughness is at a cutting depth of 0.6 mm with a cutting speed of 65 m/minute, with the average surface roughness value obtained being 0.883 (µm ). The maximum surface roughness is at a feed depth of 0.6 mm with a cutting speed of 70 m/minute with an average surface roughness value of 1.254 (µm).
Variasi Parameter Proses Terhadap Pengujian Material Removal Rate dengan Mesin CNC Bubut pada Proses Finishing Baja SKD-11 Menggunakan RSM Saputra, Anggi; Kurniawan, Zaldy; Oktriadi, Yudi
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 11 No 01 (2024): April 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v11i01.14735

Abstract

ABSTRAK Mesin CNC Turning dalam industri manufaktur berperan dalam menghasilkan komponen-komponen yang memerlukan ketelitian dan kompleksitas yang tinggi. Peralatan permesinan yang digunakan sangat berpengaruh untuk mengingatkan nilai proses produksi pada dunia manufaktur. SKD-11 mempunyai tingkat ketahanan aus yang tinggi, daktilitas yang baik, sehingga baik dan tepat untuk komponen yang memerlukan presisi dan daya tahan tinggi. Untuk mencapai optimasi dapat digunakan Response Surface Method (RSM) Box Behnken Design, dengan tiga varian yang dapat memperoleh nilai optimasi terbaik. Pada penelitian ini variabel gerak makan dan kedalaman nutrisi merupakan variabel yang signifikan atau mempengaruhi MRR. Dari hasil analisa diperoleh nilai optimasi untuk kecepatan potong 286,238 m/menit, gerak pemakanan 0,19751 mm/putaran, kedalaman pemakanan 0,12486 mm.
Pemanfaatan Fly Ash Sebagai Bahan Alternatif Pada Bata Beton Untuk meningkatkan Peredaman Panas chardova, andreas; Napitupulu, Robert; Kurniawan, Zaldy
Jurnal Teknologi Terpadu Vol 12, No 2 (2024): JTT (Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v12i2.2273

Abstract

Pemanfataan fly ash sebagai bahan tambah bata beton memberikan dampak positif terhadap lingkungan, selain mengurangi pencemaran lingkungan. Fly ash memiliki kandungan  silikat yang kemiripan seperti semen, penambahan fly ash pada campuran bata beton bisa menjadi bahan tambah mineral yang baik untuk bata beton karena fly ash tersebut mengandung silika yang bersifat mengikat. Penelitian ini bertujuan untuk mengetahui pengaruh limbah fly ash sebagai bahan tambah terhadap peredaman panas serta mengetahui nilai komposisi yang tertinggi dan terendah untuk penambahan limbah fly ash terhadap bata beton agar dapat meredam panas. Metode yang digunakan dalam penelitian ini adalah metode full faktorial dengan variabel proses  fly ash : pasir 10% : 60%, 20% : 50%, 30% : 40% dan lama pengeringan 3 dan 5 hari, dan dilakukan uji peredaman panas sebagai respon yang diamati dengan jumlah 6 spesimen dan 3 kali replikasi pada setiap spesimen. Berdasarkan  hasil penelitian yang diperoleh menunjukkan bahwa spesimen dengan fly ash : pasir 30% : 40% dengan waktu pengeringan 5 hari mendapatkan nilai tertinggi sebesar 6,6oC. sedangkan  fly ash : pasir 10% : 60% dengan waktu pengeringan 3 hari mendapatkan nilai terendah sebesar 4oC.
Co-Authors A Adjie Abdillah Halim Aiwa, Toto Angga, Muhammad Angga Pratama anggi saputra Arianda Pratama Arif Budi Pamungkas Ariyanto Ariyanto Arya Adjie Aswin, Fajar chardova, andreas Darta, Yuli Deri Saputra, Deri Dika Qomara Sari Djauhari Djauhari Eko Yudo Erick wiratama Erin Aftarini Erwansyah, Erwansyah Fachrezi, Rizki Faing, Fatullah Febriyansa, Agus Feriadi, Indra Findra Setyanto Firdi Irawan Gilang Perdana Harwadi, Harwadi Hasdiansah, Hasdiansah Husman Husman I Mahyudi Ilham Ary Wahyudie Ival Ival Mahendra, Anan Masdani, Masdani Muhammad Haritsah Amrullah Muhammad Subhan Muhammad Subhan Muhammad Yunus Odidio Pratama Odidio Oktriadi, Yudi Pranata, Yogi Pratama, Arianda Pratama, Randa Julio Pristiansyah, Pristiansyah Rapiansah Rapiansah Restu, Ilham Ridho Rosmansyah Robert Napitupulu Rodika Rollastin, Boy S.Pd. M Kes I Ketut Sudiana . Said Apreza Satrio Ramadhan, Geril Seva, Marcell Subakti, Yulian Sugianto Sugianto Suzen, Zaldy Sirwansyah Syamsul Arifin Trisna Fitri Mutiari Yuliyanto Yuliyanto Zanu Saputra Zulkipli Zulkipli