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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta BANGUN REKAPRIMA Turbo : Jurnal Program Studi Teknik Mesin Infotekmesin Journal of Appropriate Technology for Community Services Accurate: Journal of Mechanical Engineering and Science
Kurniawan, Ipung
Jurusan Teknik Mesin, Politeknik Negeri Cilacap
Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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RANCANG BANGUN DAPUR CRUCIBLE TIPE PENUANGAN TUNGKIK KAPASITAS 15 KG DENGAN BAHAN BAKAR GAS LPG Kurniawan, Ipung; Girawan, Bayu Aji; Nurrohman, Saeful
Infotekmesin Vol 9, No 01 (2018): Infotekmesin, Januari 2018
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (701.319 KB) | DOI: 10.35970/infotekmesin.v9i01.1

Abstract

This research aims to; 1) Designing and making aluminium melting crucible casting with the capacity15 kg; 2) Conducting the test of chemical composition of the first and second melting result. Theresearch used field and library research. From the result of the design, it could be obtained that thedimension of melting casting has 547 mm diameter, 3 mm thick, 410 mm high. Whereas, molten cup has 178 mm diameter, 8 mm thick, and 230 mm high. The result of the first melting chemicalcomposition test and the second one do not work out a significant change. The material of the firstmelting result still contains 89,52% of aluminium (Al), while the main fusion is 7,71% of zinc (Zn)and 1,84% of silicon (Si), and in the second melting result still contains 89,55% of Alumunium (Al),while the main fusion is 7,51% of zinc (Zn) and 1,94% of silicon (Si).
KARAKTERISASI Al-Zn7 HASIL PELEBURAN DAPUR CRUCIBLE DENGAN TIPE PENUANGAN TUNGKIK Kurniawan, Ipung; Girawan, Bayu Aji; Yulianto, Imam
Infotekmesin Vol 9, No 02 (2018): Infotekmesin, Juli 2018
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1894.133 KB) | DOI: 10.35970/infotekmesin.v9i02.13

Abstract

Nowdays, Alumunium is widely used and utilized in industrial activities because of light properties and having well mechanical strengths. The use of alumunium does not only limit on the use of new alumunium, but also the used one. The main purpose of this research, i.e., (1) testing of physical and mechanical properties of Al-Zn7 from the fussion of Crucible furnace; (2) analyzing crucible furnace of the Al-Zn7 fussion by comparing to the result of the first and second fussion. The method of this research was experimental research with the average value of each the first casting was 49,2 HRB and the second one was 50,3 HRB. Based on the test result showed that the quality of crucible furnace was good because it did not experience the significant changes.
RANCANG BANGUN ALAT BANTU LAS MEJA PUTAR PENEPAT Ipung Kurniawan; Bayu Aji Girawan; Ika Fitriyani
Bangun Rekaprima Vol 6, No 1 (2020): April 2020
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (557.634 KB) | DOI: 10.32497/bangunrekaprima.v6i1.1925

Abstract

Meja putar penepat adalah alat bantu yang dirancang untuk mempermudah proses pengelasan khususnya pada pipa. Alat bantu ini dapat membantu pengelasan dalam penempatkan benda kerja dan memutar benda kerja selama proses pengelasan sehingga diharapkan hasil lasan konsisten dan stabil. Tujuan dari penelitian ini yaitu; menentukan rancangan desain alat bantu, menghitung bagian-bagian elemen mesin dan menghitung estimasi waktu produksi. Dalam proses perancangan menggunakan pendekatan metode VDI 2222. Motor penggerak yang digunakan yaitu motor DC jenis power window. Pengatur kecepatan putar motor digunakan metode Pulse-Width Modulation (PWM). Hasil dari penelitian diperoleh desain alat menggunakan engsel dan pengatur sudut untuk mengatur sudut kerja dari meja putar. Hasil perhitungan elemen mesin didapat daya untuk memutar meja adalah 0,055 watt. Diameter roda gigi yang digunakan adalah 60 mm dan 48 mm. Diameter poros yang digunakan adalah 28,58 mm. Umur bantalan 2,5 tahun. Kapasitas beban maksimal yaitu 15 kg. Waktu proses produksi alat bantu las ini yaitu 2,5 hari.
RANCANG BANGUN MESIN FRICTION WELDINGUNTUK PENGELASAN BAJA ST 37 DENGAN DIAMETER MAKSIMAL ½ INCH Ipung Kurniawan; Pujono Pujono; Mohammad Nurhilal; Dian Prabowo
Bangun Rekaprima Vol 8, No 1 (2022): April 2022
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (772.246 KB) | DOI: 10.32497/bangunrekaprima.v8i1.3555

Abstract

Pengelasan gesek merupakan proses pengelasan tanpa menggunakan bahan tambah. Gesekan diakibatkan oleh pertemuan kedua benda kerja yang menghasilkan panas kemudian melumerkan kedua ujung benda kerja dan akhirnya terjadi proses penyambungan benda kerja. Tujuan dalam rancang bangun mesin friction welding yaitu membuat perancangan pada mesin friction welding, menghitung komponen elemen mesin, menghitung mekanika teknik pada rangka, menghitung gaya dorong aktuator, menghitung estimasi total waktu proses produksi, melakukan uji fungsi pada bagian sistem transmisi dan kontrol tekan dan uji hasil variasi diameter besi pejal silinder. Metode perancangan dengan pendekatan metode VDI 2222. Hasil dari rancangan berupa desain mesin friction welding. Dihasilkan motor listrik yang digunakan memiliki daya 1,5 HP, puli yang digunakan Ø6 inch dan Ø2 inch, sehingga didapati putaran sebesar 4200 rpm, panjang v-belt 1.324,18 mm, poros memiliki ukuran Ø25 mm.Hasil dari rancang bangun didapatkan hasil yaitu material yang digunakan yaitu besi siku dan kanal U dengan ukuran frame 1200x400x855 mm, slider 400x206x200 mm. Gaya dorong yang dihasilkan aktuator sebesar 480 N. Estimasi total waktu produksi selama 20,24 jam. Sistem transmisi mampu meneruskan daya dari motor penggerak menuju rotary chuck dan kontrol tekan mampu bergerak maju dan mundur. Mesin friction welding berhasil menyambung besi pejal silinder dengan Ø6 mm, Ø8 mm, Ø10 mm dalam waktu 1 menit,berhasil menyambung 2 besi pejal silinder dengan ukuran Ø1/2 inchi dengan variasi tekanan 6[bar], 7[bar], 8[bar], namun besi tersambung tidak sempurna. Hasil uji tarik menunjukkan kekuatan tarik tertinggi sebesar 153 MPa
KARAKTERISASI Al-Zn7 HASIL PELEBURAN DAPUR CRUCIBLE DENGAN TIPE PENUANGAN TUNGKIK Ipung Kurniawan; Bayu Aji Girawan; Imam Yulianto
Infotekmesin Vol 9 No 02 (2018): Infotekmesin, Juli 2018
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v9i02.13

Abstract

Nowdays, Alumunium is widely used and utilized in industrial activities because of light properties and having well mechanical strengths. The use of alumunium does not only limit on the use of new alumunium, but also the used one. The main purpose of this research, i.e., (1) testing of physical and mechanical properties of Al-Zn7 from the fussion of Crucible furnace; (2) analyzing crucible furnace of the Al-Zn7 fussion by comparing to the result of the first and second fussion. The method of this research was experimental research with the average value of each the first casting was 49,2 HRB and the second one was 50,3 HRB. Based on the test result showed that the quality of crucible furnace was good because it did not experience the significant changes.
RANCANG BANGUN DAPUR CRUCIBLE TIPE PENUANGAN TUNGKIK KAPASITAS 15 KG DENGAN BAHAN BAKAR GAS LPG Ipung Kurniawan; Bayu Aji Girawan; Saeful Nurrohman
Infotekmesin Vol 9 No 01 (2018): Infotekmesin, Januari 2018
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v9i01.1

Abstract

This research aims to; 1) Designing and making aluminium melting crucible casting with the capacity15 kg; 2) Conducting the test of chemical composition of the first and second melting result. Theresearch used field and library research. From the result of the design, it could be obtained that thedimension of melting casting has 547 mm diameter, 3 mm thick, 410 mm high. Whereas, molten cup has 178 mm diameter, 8 mm thick, and 230 mm high. The result of the first melting chemicalcomposition test and the second one do not work out a significant change. The material of the firstmelting result still contains 89,52% of aluminium (Al), while the main fusion is 7,71% of zinc (Zn)and 1,84% of silicon (Si), and in the second melting result still contains 89,55% of Alumunium (Al),while the main fusion is 7,51% of zinc (Zn) and 1,94% of silicon (Si).
Rancang Bangun Alat Pemanas Induksi Proses Perlakuan Panas Ipung Kurniawan; Bayu Aji Girawan; Imam Muasih; Yosep Susanto
Accurate: Journal of Mechanical Engineering and Science Vol. 1 No. 1 (2020): April, 2020
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v1i1.162

Abstract

The heat treatment process using the fuel system is very numerous and the heating time is quite long. The use of induction heaters, heat treatment can be done with a shorter time and less energy. The purpose of this research are; (1) Make a plan design, (2) Measure the part of machine element, (3) Measure the estimation of time and design budget, (4) Test the result of induction heater machine. The method in this study uses experimental. The result of concept design evaluation, i.e., the use of trapezoid screw on the lifter system was 0,2 kilowatt of motor power, 12 mm of shaft diameter, and ball bearing 6201 with the age of 0,31 years which determined from the calculation of machine element on the induction heater system. The total of time for making this machine was 3.182,06 minutes and it spent Rp 5.360.700,-. The result of test shows that the hardness rate of raw material mild steel that given heat of hardening temperature of 850 0C, that endured for 45 minutes increasing being 84,3 HRB. However, after being tempered temperature of 400 0C having a decrease being 69 HRB.
PELATIHAN LAS LISTRIK DASAR UNTUK MASYARAKAT USIA PRODUKTIF LINGKUNGAN RW 10 DESA SIDANEGARA KECAMATAN CILACAP TENGAH KABUPATEN CILACAP Ipung Kurniawan; pujono pujono pujono
Journal of Appropriate Technology for Community Services Vol. 1 No. 2 (2020)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jattec.vol1.iss2.art5

Abstract

Community service is an obligation which must be formed for lecturers in higher education. Training of electrical welding that had been conducted as a form of dedication to society aims to provide the understanding of the importance of skill in conducting the training of basic electrical welding. The objective of the community service was productive men surrounding RW 10 Sidanegara, Cilacap subdistrict. To choose the objective was based on some reason, i.e.,there were many productive men that could cause the effect of the number of unemployed increased. This actvity used two methods. The first method was giving te understanding of basic electrical welding theory. In this case, preaching and discussing method were conducted. The second method was practice in laboratory in order that they obtained skill of welding. The result of this activity was the increase of knowledge and skill about techniques of basic electrical welding. With the skill they obtained, it can give positive impacts for people in economy and social sector. 
Pengaruh Penambahan Limbah Plastik Sebagai Alternatif Pengganti Bata Beton Dinding Rumah Dian Prabowo; Probo Hardini; Ipung Kurniawan; Agus Santoso
Accurate: Journal of Mechanical Engineering and Science Vol 3, No 1 (2022): April 2022
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v3i1.1379

Abstract

Penanganan limbah saat ini terutama limbah plastik, oli bekas, styrofoam bisa dimanfaatkan menjadi batako ataupun batu bata. Dengan proses sederhana, limbah plastik, oli bekas, styrofoam dapat diubah menjadi produk yang lebih bermanfaat dengan harga bersaing dengan batako biasa. Namun pengujian sifat-sifat fisik batako limbah plastik, oli bekas, styrofoam sebagai bahan bangunan konstruksi masih belum banyak dilakukan. Melalui penelitian ini diharapkan kita dapat mengetahui keunggulan ataupun kelemahan karakteristik batako komposit sebagai bahan bangunan dibandingkan batako biasa.  Tujuan penelitian ini adalah untuk membandingkan karakteristik kuat tekan batako komposit pada beberapa variasi komposisi komposit. Campuran limbah plastik, oli bekas, styrofoam yang dikompositkan dalam batako adalah sebesar 20,26% volume. Campuran oli bekas, plastik, Styrofoam  dan pasir yang dikompositkan dalam batako adalah sebesar 20,26% volume. Cetakan dibuat dari plat baja tebal 3mm dibuat dalam bentuk balok ber alur lebar 150 mm sepanjang 500 mm sebanyak alur 2 buah. Hasil pemeriksaan kuat tekan dibandingkan berat batako oli bekas, plastik, Styrofoam  dan pasir komposisi cetakan III lebih ringan dari cetakan II meskipun voume komposit pada masing-masing cetakan tersebut sama. Hal ini disebabkan karena campuran penekanan pada cetakan II lebih padat daripada campuran pada cetakan III.
Laju perambatan retak fatik dan sifat mekanik pada pengelasan friction stir welding (FSW) aluminium AA2024-T3 dengan perlakuan transient thermal tensioning (TTT) Pujono Pujono; Dian Prabowo; Ipung Kurniawan; Joko Setia Pribadi; Muhamad Yusuf
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2270

Abstract

One type of engineering material that is often used in transportation construction, especially for aircraft, automotive, ships, and other industries is aluminum alloy. Aluminum alloys have excellent mechanical properties, including corrosion resistance, lightweight, and good formability. However, in addition to these good properties, aluminum also has a weakness, namely the appearance of porosity and cracks when connected using arc welding (TIG, MIG). Friction stir welding (FSW) is an appropriate welding method for aluminum alloys to overcome these weaknesses, but the next problem will arise, namely related to distortion, decreased mechanical properties, and residual stress. For this reason, additional treatment is needed in order to improve the mechanical properties of the FSW welding results. The research method to be carried out is to carry out the FSW welding process on 2024 T3 aluminum alloys by adding moving local heat or transient thermal tensioning (TTT) using a heater placed in front of the tool and a heating temperature of 200°C. Some of the characterizations that will be carried out are microstructure tests, tensile tests, and fatigue tests. The results showed that the highest tensile strength value was obtained in the 1500 specimen, which was 312.2 MPa. The microstructure in the nugget zone (NZ) is fine-grain equiaxed. The lowest fatigue crack propagation rate at ΔK values of less than 7 MPa.m0.5 occurred in the 1100 specimen, while in other specimens the fatigue crack propagation rate was higher.
Co-Authors Agus Santoso Bayu Aji Girawan Bayu Aji Girawan Dian Prabowo Dian Prabowo Fendi Tri Hartono Fikri Adi Kusuma Ika Fitriyani Imam Muasih Imam Yulianto Joko Setia Pribadi Mohammad Nurhilal Muhamad Yusuf Nurrohman, Saeful Prabowo, Dian Pribadi, Joko Setia Probo Hardini Pujono Pujono Pujono, Pujono Roy Aries Permana Tarigan Saeful Nurrohman Yosep Susanto Yulianto, Imam