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All Journal Jurnal Teknologi Rekayasa Mesin Sinergi REKAYASA Jurnal Ilmiah Arena Tekstil Metal Indonesia JTERA (Jurnal Teknologi Rekayasa) Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Multitek Indonesia : Jurnal Ilmiah Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Community Empowerment Mechanical Engineering for Society and Industry Automotive Experiences Jurnal Teknik Mesin Mechanical Xplore Teknologika SEMNASTERA (Seminar Nasional Teknologi dan Riset Terapan) AME (Aplikasi Mekanika dan Energi) : Jurnal Ilmiah Teknik Mesin Jurnal Polimesin

Amri Abdulah

Sekolah Tinggi Teknologi Wastukancana

Author-ID : 1708417

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Optimization of Tensile-Shear Strength in the Dissimilar Joint of Zn-Coated Steel and Low Carbon Steel Sukarman Sukarman; Amri Abdulah; Jatira Jatira; Dede Ardi Rajab; Rohman Rohman; Choirul Anwar; Yulfian Aminanda; Muhammad Ali Akbar
Automotive Experiences Vol 3 No 3 (2020)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

The present study features analytical and experimental results of optimizing resistance spot welding performed using a pneumatic force system (PFS). The optimization was performed to join SECC-AF (JIS G 3313) galvanized steel material with SPCC-SD low carbon steel. The SECC-AF is an SPCC-SD (JIS G 3141) sheet plate coated with zinc (Zn) with a thickness of about 2.5 microns. The zinc coating on the metal surface causes its weldability to decrease. This study aims to obtain the highest tensile-shear strength test results from the combination of the specified resistance spot welding parameters. The research method used the Taguchi method using four variables and a combination of experimental levels. The experimental levels are 2-levels for the first parameter and 3-levels for other parameters. The Taguchi optimization experimental results achieved the highest tensile-shear strength at 5049.64 N. It properly worked at 22 squeeze time cycles, 25 kA of welding current, and 0.6-second welding time and 12 holding-time cycles. The S/N ratio analysis found that the welding current had the most significant effect, followed by welding time, squeeze time, and holding time. The delta S/N ratio values were 1.05, 0.67, 0.57 and 0.29, respectively.

PERANCANGAN MESIN CUTTING CHEESE BLOCK DENGAN CUTTING TOOLS KAPASITAS 20 KG Jatira; Amri Abdulah; Solihin
Jurnal Teknologika Vol 10 No 2 (2020): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Pemotongan keju blok yang dilakukan secara manual dengan menggunakan pisau membuat proses pemotongan menjadi lama sehingga operator kesulitan dalam mencapai target yang telah ditentukan. Mesin pemotong keju merupakan mesin dengan sistem pneumatik yaitu memanfaatkan tenaga angin sebagai penggerak untuk mendorong keju. Tujuan penelitian ini untuk memberikan gambaran rancangan mesin pemotong keju agar proses pemotongan keju terutama dalam bidang insutri menjadi lebih cepat. Pengambilan data pada penelitian ini yaitu meliputi observasi secara langsung, wawancara dan studi literatur. Hasil penelitian yang diperoleh adalah dari segi kualitas serta kuantitasnya. Mesin pemotong keju dengan sistem pneumatik ini dilihat dari segi kualitasnya hasil potongan keju menjadi seragam dibandingkan jika memotong secara manual. Sedangkan jika dilihat dari segi kuantitasnya mesin ini mampu menghasilkan 31,65 blok dibandingkan dengan pemotongan manual yang hanya 6,4 blok keju. Dari hasil tersebut dapat disimpulkan bahwa dengan mesin pemotong keju ini proses pemotongan menjadi lebih cepat dengan ukuran yang seragam.

ANALISIS SURFACE ROUGHNESS DAN MATERIAL REMOVAL RATE PADA PROSES SINKER-EDM MENGGUNAKAN ELEKTRODA GRAPHITE Muhamad Ardiansyah; Amri Abdulah; Sukarman
Jurnal Teknologika Vol 12 No 1 (2022): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Electrical discharge machining (EDM) is a non-conventional machining process by feeding the workpiece material by means of an electric spark (spark) through the gap between the electrode and the workpiece containing a dielectric fluid. The EDM process is influenced by the material being processed, electrode material, discharge current, spark on time, spark gap, dielectric fluid and so on. The combination of these parameters will produce different machining characteristics. The purpose of this study was to determine the value of the material removal rate and surface roughness of the workpiece (Surface Roughnes), using graphite electrodes and using the Taguchi method to determine the optimal parameters by varying the current parameters 10A, 13A. , 16A, spark on time 210µ, 340µ, 400µ and gap 40, 45, 50.

Analisis Keretakan pada Sambungan Las antara Pipa ASTM A106 dengan Globe Valve Amri Abdulah; Apang Djafar Shieddique; Jatira Jatira; Dede Ardi Rajab; Sukarman Sukarman
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2150

Crack failure often occurs in piping installations, especially in the welding area which can be caused by excessive stress or corrosion of the material. In this case, the crack failure in the HAZ area will be discussed near the pipe connected to the valve for the heat transfer fluid line. The method used in this paper is the inspection of the attached materials using OES (Optical emission spectroscope), observation of pipe and valve joints and failure analysis. From the results of material inspection, it was found that the pipe used was ASTM A106, then from the microstructure it was seen that the grain dimensions were not homogeneous, it would cause the strength of material heterogeneity, then from visual observation, it could be seen that pipe joints and valve misalignment occurred.

Analisis Ketahanan Material Epoxy Powder EF150AB pada Uji Thermal Shock untuk Komponen Charger Mobil Listrik Apang Djafar Shieddique; Amri Abdulah; Choerul Anwar; Yoon Jung Rag; Sohn Chang Kil; Dodi Muhammad
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 3 Nomor 2 Tahun 2021
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v3i2.2153

Inside the electric car charger there is a controller where one of the components is the Disc Ceramic Capacitor (DCC) type SCF2E472M10 coated with epoxy powder EF150AB. The faster the charging, the higher the temperature, for that we need good performance on the capacitor layer. The method used in this study is to test the Pressure Cycle Temperature (PCT) with a temperature of 121 ° C, a pressure of 2 bar and a holding time of 48 hours and a Thermal Shock Test with a temperature parameter of -40 ° C to 125 ° C for each temperature change. 30 minutes for 100 hours, the number of test samples for each test is 20. From the test results, it was found that the average capacitance value on the PCT test was 4439.9 pF with a standard limit value of 3760 to 5640 pF, then the average value of Insulation resistance (IR) after the PCT test was 14183 Ω with the standard limit of the IR value of 10000 Ω. From these results it can be concluded that epoxy powder EF150AB is good for DCC coatings because the coating is resistant to low and high temperatures, which ranges from -40 ° C to 125 ° C.

A Report on Metal Forming Technology Transfer from Expert to Industry for Improving Production Efficiency Khoirudin Khoirudin; Sukarman Sukarman; Murtalim Murtalim; Fathan Mubina Dewadi; Nana Rahdiana; Amin Rais; Amri Abdulah; Choirul Anwar; Aries Abbas
Mechanical Engineering for Society and Industry Vol 1 No 2 (2021)
Publisher : Universitas Muhammadiyah Magelang

This article reports on technological mastery assistance in three small metal forming industries in Indonesia. Problems in the blangking and piercing separately process caused increased production time which resulted in inefficiency cost. Therefore, the expert team aided in metal forming technology through participatory action research (PAR) methods and experimental methods through reverse engineering for several products. The PAR method involves optimal contribution and participation from the industry. Assistance in mastering technology in small metal-forming industries reduces the manufacturing process from seven to three stages, increasing efficiency. The press machine's tonnage capacity must balance with the force blanking/piercing requirement. The minimum press machine requirement is 6.7 tons, and based on the availability of existing press machines, the expert team recommends a 20-ton capacity press machine. Total efficiency can be further increased by implementing full progressive die technology by combining piercing, blanking, and bending processes.

OPTIMASI SINGLE RESPONSE PROSES RESISTANCE SPOT WELDING PADA PENGGABUNGAN BAJA BEDA MATERIAL MENGGUNAKAN METODE EKSPERIMENTAL TAGUCHI Sukarman - Sukarman; Amri Abdulah
MULTITEK INDONESIA Vol 14, No 2 (2020): Desember
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/mtkind.v14i2.3076

ABSTRAKArtikel ini menyajikan analisis eksperimental pengoptimalan resistance spot welding (pengelasan titik resistansi) yang telah berhasil dilakukan menggunakan mesin spot welding dengan sistem gaya penekan pneumatik (pressure force system/ PFS) pada kedua elektrodanya. Optimasi dilakukan dengan mengabungkan baja beda material galvanis (SGCC-JIS G 3302) dengan baja karbon rendah SPHC (JIS 3131). Baja SGCC merupakan pelat lembaran SPCC-SD (JIS 3141) yang dilapisi seng (Zn) dengan ketebalan sekitar 18.5 mikron. Lapisan seng dengan ketebalan yang cukup signifikan, menyebabkan penurunan sifat mampu lasnya. Penelitian ini bertujuan untuk mendapatkan hasil pengujian tegangan tarik geser (shear-tensile strength) tertinggi dari parameter resistance spot welding yang ditentukan. Penelitian menggunakan metode Taguchi 4-variabel dan kombinasi level eksperimen. Kombinasi level ekperimen yang digunakan yaitu, 2-level untuk parameter pertama dan 3-level untuk tiga parameter lainnya. Hasil optimasi didapatkan kekuatan geser-tarik tertinggi pada 5758.96 N yang dicapaai pada squeeze time-22 cycles, welding current-27 kA, welding time-0.6 detik dan holding time-15 cycles. Pengaruh yang signifikan didapat pada welding current dengan delta S / N ratio sebesar 1.21. Parameter signifikan lainya berturut-turut adalah welding time, squeeze time, and holding time. Nilai delta S / N rasio masing-masing adalah 0,95, 0,65 dan 0,19. ABSTRACTThis study presents an experimental optimization of resistance spot welding performed using a pneumatic force (electrode) system (PFS) machine. Optimization was carried out to joint the galvanized steel (SGCC JIS G 3313) with low-carbon steel (SPHC JIS 3131). SGCC is an SPCC-SD (JIS 3141) plate coated zinc (Zn) with a thickness of about 18.5 microns. A zinc coating, with significant thickness layers, causes the weldability of the metal to decrease. This study aims to obtain the tensile shear strength test results from the specified resistance spot welding parameters. The research used the Taguchi method using 4-variables and a combination of 2-level experiments. This research's practical level is 2-levels for the first parameter and 3-levels for the other parameters. The Taguchi experiment's optimization achieved the highest shear-tensile at 5758.96 N. This works performed at 22 cycles of squeeze time, 27 kA welding current, and welding time of 0.6 seconds and 15 cycles of holding time. The S / N ratio analysis results show that the welding current is the most significant to the outcome and followed by welding time, squeeze time, and holding time. The S / N delta ratio values are 1.21, 0.95, 0.65 and 0.19, respectively.

The Effect of Temperature on Tensile Strength of Polypropylene Plate Material Using Hot Gas Welding (HGW) Method Rohman Rohman; Anjar Prasetyo; Amri Abdulah; Karyadi Karyadi; Thiyana Thiyana; Sukarman Sukarman
Jurnal Teknik Mesin Mechanical Xplore Vol 3 No 1 (2022): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v3i1.2453

This study focuses on plastic welding, a technique that employs polypropylene plastic material in 3600-litre reservoir applications. The liquid pressure within it causes hydrostatic pressure in the reservoir. The pressure in the reservoir is approximately 0.01 N/mm2. This study aimed to determine how frequently polypropylene joints leak or sustain damage as a result of welding. Hot gas welding (HGW) with a v-groove connection type is employed (v-grove). Specimens of polypropylene were prepared in accordance with ASTM D638-I. In this study, the input parameters were chosen by varying the welding position and the machine's setting temperature. The results indicated that the required welding temperature for 5 mm-thick polypropylene plastic ranged between 220 and 280 degrees Celsius. In the tensile test on samples S1, S2, and S3, the average decrease in tensile strength of the three test objects was 13.84 N/mm2, 15.98 N/mm2, and 15.21 N/mm2, respectively

An Analysis of the Springback Phenomenon of the Material Aluminum Alloy 6063-T5 With Punch Angle Variation Amri Abdulah; Revi Kusnadi; Mohamad Rizkiyanto; Sukarman; Amir Amir; Dibyo Setiawan
Jurnal Teknik Mesin Mechanical Xplore Vol 3 No 1 (2022): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v3i1.2768

Springback is a phenomenon that frequently occurs in bending processes and is detrimental to the manufacturing industry. Typical disadvantages include the incompatibility of the product's final dimensions and the need for additional processing. Indeed, these must also incur additional expenses and result in the inefficient production process flow. Consequently, the analysis of springback is attracted to studies to obtain a bending product that meets expectations. This study examined the springback phenomena on 60 mm x 19 mm x 2 mm aluminium alloy 6063-T5 materials using V-bending processes and approximately 40°, 50°, and 60° punch angles. This study also utilized the die opening and bending force variables, 35 mm and 2500 N, respectively. It was anticipated that these procedures would produce a 6063-T5 aluminium alloy with a bending angle of approximately 90 degrees. The results indicate that the bending angles produced by these processes with the various punch angles are 91.50°, 91.42°, and 91.67°, respectively. It indicates that the excess bending angle was referred to as springback. Consequently, a bending angle of approximately 90° can be obtained on aluminium alloy 6063-T5 using V-bending processes with the set parameters of die opening in 35 mm and bending force in 2500 N, in addition to the punch angle that was reduced based on the known springback value. In addition, it is anticipated that this result will contribute to the development of the manufacturing industry, particularly the aluminium alloy 6063-T5 materials industry, or serve as a reference for other relevant studies

ANALISIS MATERIAL ROLLER CVT RACING UNTUK PENINGKATAN PERFORMA SEPEDA MOTOR HONDA BEAT 110CC Agung Maulana Rahmat; Dede Ardi Rajab; Nefli Yusuf; Amri Abdulah
Jurnal Teknologika Vol 12 No 2 (2022): Jurnal Teknologika
Publisher : Sekolah Tinggi Teknologi Wastukancana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51132/teknologika.v12iNo 2.195

Abstrack In the industry, most do not use pure aluminum material, but utilize material absorption. An alloy that is often used in the foundry industry is Al-Si. The smelting process using a tool made of refractory stone as a heat insulator is able to increase the heat in the combustion chamber to 1,000 °C, the melted metal material must be at a melting point below 1,000 °C, such as aluminum, brass, lead and so on,. Roller is one of the components contained in the automatic transmission or CVT. Roller bar functions to press against the inner wall of the primary pulley during high rotation. This racing roller is a roller that is usually used to improve the performance of an automatic motorcycle. Rollers are heavy force balance bearings that are useful for pressing the inner walls of the primary pulley during high revolutions. Based on the results of the discussion in this study that the hardness value at three different points and has been carried out as much as 3 times for one test material, namely the Standard Roller, that data 1 average hardness price of 86 with an average penetration depth of 0.12 mm, for data 2 the average hardness price of 93 with an average penetration depth of 0.28 mm. Keywords : Material, Roller, and Hardness Tester.

Co-Authors Abduh Al Afgani Afgani, Abduh Al Agung Maulana Rahmat Agus Solehudin Agus Suprayitno Agus Supraytno Agus Supriyanto Ahmad Fauzi Amin Rais Aminanda, Yulfian Amir Amir Amir Amir Amir Ananda Duta Suhendar Anjar Prasetyo Anwar Ilmar Ramadhan Apang Djafar Shieddique Ardi Rajab, Dede Aries Abbas Aris Budiyanto Bachtiar, Mochamad Faisal Choerul Anwar Choirul Anwar Choirul Anwar Choirul Anwar Dani, Muhamad Dede Ardi Rajab Dede Ardi Rajab Dede Ardi Rajab Dede Ardi Rajab Dede Ardi Rajab Dharmawan, Quewys Alqorni Mada Dodi Muhammad Dodi Mulyadi Dodi Mulyadi Fathan Mubina Dewadi Ghany Heryana Hananto, Agustia Harmanda, Adi Hasanudin Hasanudin Heryadi, Yadi Hilman Nugraha Husna, Agus Iman Nurshahid Ina, Ina afriani Irawan, Adhi Chandra Jaenudin Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jatira Jefri Jafarudin Karyadi Karyadi Karyadi Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin Khoirudin, Khoirudin Kil, Sohn Chang Kurnia, Tata Kusnadi, Akhmad Mardiansyah, Zulfahri Moch Iqbal Zaelani Mutahar Mohamad Rizkiyanto Mudjianto Ramadhan Cahya Muhamad Ardiansyah Muhamad Taufik Ulhakim Muhamad Taufik Ulhakim Muhamad Wisnu Purnama Muhamad Wisnu Purnama Muhammad Ali Akbar Muhammad Ali Akbar, Muhammad Ali Murtalim Murtalim Murtalim Muyladi, Dodi Nana Rahdiana Nana Rahdiana Naufal, Muhammad Fairuz Nazar Fazrin Nefli Yusuf Nizar Fernanta, Yosa Noviani, Vini Nur Alam, Deden Prasetyo, Maulana Kukuh Putra, Ean Deka Rag, Yoon Jung Rahdiana, Nana Rahmanto, R. Hengki Raja Mualtio Panggabean Rajab, Dede Ardi Renaldi Renaldi Renata Lintang Azizah Revi Kusnadi Ricko Valderama Riswandi, Muhammad Andi Rohman Rohman Rohman Rohman Rohman Rohman Rohman Roy Waluyo Saiful Anwar Saputra Sigalingging, Wanri Satria Prayoga setiawan, Dibyo Setiawan, Yuda Shieddieque, Apang Djafar Shieddique, Apang Djafar Shieddique, Apang Djafar Siswanto Sofyan, Muhammad Faizal Sohn Chang Kil Solihin Sri Suhartini Stefanus Bambang Jumawan Sukarman Sukarman Sukarman Sukarman - Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Sukarman Suriaman, Irwan Suripto, Heri Tarya Taufik Ulhakim, Muhamad TB. Utami Adi Subekhi TB.U. Adi Subekhi Thiyana Thiyana Tomas Irfani Wawan Yoon Jung Rag Yulfian Aminanda Zaidar, Chilfi

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