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All Journal SPEKTRUM INDUSTRI Jurnal Teknologi Jurnal Optimasi Sistem Industri Journal of Applied Sciences and Advanced Technology Jurnal Teknik Mesin Mechanical Xplore Jurnal Akademika Kimia Borobudur Engineering Review Joong-Ki Jurnal Polimesin Jurnal Akademika Kimia Joong-Ki
Khoirudin Khoirudin
Universitas Buana Perjuangan Karawang
Religion Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Enhancing TIG Welding Parameters For Direct Tensile Load (DT-load) On Various Steel Thicknesses Amar Amar; Sukarman Sukarman; Khoirudin Khoirudin; Dodi Mulyadi; Arul Basit; Ade Suhara; Apang Djafar Shieddieque; Tegar Dwi Cahyo
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4892

Abstract

The car body repair process is integral to vehicle development and structural repair. The primary objective of this study is to enhance the quality of thin material welding utilized in automobile body repair. The impetus for this research stems from the necessity to improve the structural integrity and longevity of thin materials prone to deformation throughout the welding procedure while minimizing distortion. This study aims to identify optimal parameters for the tungsten inert gas welding (TIG welding) process on thin materials, particularly for automobile body rearrangement. The Taguchi method conducted the experimental analysis of variations in welding parameters, including electrode diameter, gas flow rate, and welding current. Adjusting TIG welding parameters to their optimal values significantly improves weld joint direct tensile load (DT-load) and overall structural quality, according to the findings of this study. ANOVA analysis and the S-N ratio indicate that gas flow rate and welding current are significant determinants of the quality of welded joints in thin materials. This research contributes to a better understanding of the optimal parameters for fusing thin materials, particularly in automobile body repair. The automotive industry can use these findings as a guide to enhance the quality and strength of welding processes, which are critical to the structural integrity of vehicles.
Analysis Redox Reaction on Zinc-Coating Thickness Test in Metal Processing Industry of Small and Medium Enterprises Gatot Triyanto; Ricky R. Saputro; Chepi Reynaldir; Khoirudin Khoirudin; Sukarman Sukarman
Jurnal Akademika Kimia Vol. 11 No. 1 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2022.v11.i1.pp19-25

Abstract

This study discusses the implementation of redox reactions on the thickness test of the galvanized (zinc-coated) layer using the JIS-H-0401 standard to help Small and Medium Enterprises (SMEs) industries. Some of the finished products go through the galvanizing process in the metal processing industry. Quality constraints, especially related to the thickness of the galvanic (zinc-coated) layer, have become an object that is less controlled because of the limitations of the test equipment used. This research uses an experimental method applied to one of its products: a flat washer with SPCC material and a thickness of about 2.20 mm. SPCC - SD material is classified as low carbon steel based on its carbon content. 5-unit flat washers were identified with sample codes A, B, C, D, and E. Flat washers have an internal diameter of 22.65 - 22.7 mm. In comparison, the outer diameter is between 43.75 - 43.80. The redox reaction process uses HCl (hydrochloric acid) with a concentration of 1 M, which is diluted with water (H2O). The zinc thickness test results show that the flat washer has an average thickness of 10.52 microns with a minimum and maximum thickness variation of 10.66 -10.72 microns.
Pelatihan Perakitan Panel Surya Untuk Santri Di Pondok Pesantren At-Taubah Tirtamulya Karawang Dodi Mulyadi; Khoirudin Khoirudin; Amir Amir; Rizki Aulia Nanda; Agus Suprihanto; Karyadi Karyadi
Joong-Ki : Jurnal Pengabdian Masyarakat Vol. 4 No. 1: November 2024
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/joongki.v4i1.6351

Abstract

Pesantren At Taubah, sebagai pondok pesantren modern, mempunyai visi “menjadi Lembaga Pendidikan Islam berbasis life skill unuk menyiapkan generasi Indonesia yang maju, berkarakter/adab, dan memiliki keterbukaan wawasan iptek yang bermanfaat bagi lingkungan”. Pengabdian kepada masyarakat telah dilakuakn dengan tujuan untuk penambahan pengetahuan para santri di pondok pesantren tersebut tentang energi terbarukan, khususnya panel surya, merupakan salah satu upaya dalam menggapai visi pesantren, dimana mereka akan mempunyai ilmu dan pengetahuan (iptek) terkini. para santri juga memahami bahwa sumber energi surya (matahari) mempunyai dampak yang lebih baik bagi lingkungan dibandingkan dengan energi yang bersumber dari fosil. Pengetahuan tentang manfaat sumber energi surya telah mampu dibarengi dengan keterampilan para santri tentang bagaimana cara untuk merangkai peralatan panel surya hingga dapat dimanfaatkan menjadi sumber energi listrik. Para santri juga telah diberi pengetahuan dan keterampilan merangkai panel surya yang diiringi dengan pengetahuan penghitungan daya, tegangan, dan arus yang dihasilkan dari rangkaian panel surya yang direncakan atau yang telah dibuat.
Pelatihan Perakitan Panel Surya Untuk Santri Di Pondok Pesantren At-Taubah Tirtamulya Karawang Dodi Mulyadi; Khoirudin Khoirudin; Amir Amir; Rizki Aulia Nanda; Agus Suprihanto; Karyadi Karyadi
Joong-Ki : Jurnal Pengabdian Masyarakat Vol. 4 No. 1: November 2024
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/joongki.v4i1.6351

Abstract

Pesantren At Taubah, sebagai pondok pesantren modern, mempunyai visi “menjadi Lembaga Pendidikan Islam berbasis life skill unuk menyiapkan generasi Indonesia yang maju, berkarakter/adab, dan memiliki keterbukaan wawasan iptek yang bermanfaat bagi lingkungan”. Pengabdian kepada masyarakat telah dilakuakn dengan tujuan untuk penambahan pengetahuan para santri di pondok pesantren tersebut tentang energi terbarukan, khususnya panel surya, merupakan salah satu upaya dalam menggapai visi pesantren, dimana mereka akan mempunyai ilmu dan pengetahuan (iptek) terkini. para santri juga memahami bahwa sumber energi surya (matahari) mempunyai dampak yang lebih baik bagi lingkungan dibandingkan dengan energi yang bersumber dari fosil. Pengetahuan tentang manfaat sumber energi surya telah mampu dibarengi dengan keterampilan para santri tentang bagaimana cara untuk merangkai peralatan panel surya hingga dapat dimanfaatkan menjadi sumber energi listrik. Para santri juga telah diberi pengetahuan dan keterampilan merangkai panel surya yang diiringi dengan pengetahuan penghitungan daya, tegangan, dan arus yang dihasilkan dari rangkaian panel surya yang direncakan atau yang telah dibuat.
DESIGN OF INCENTIVE WAGES WITH STANDARD TIME TO IMPROVE PACKAGE OPERATOR PERFORMANCE (A Case Study at PT. XYZ) Nana Rahdiana; Sani Suhardiman; Khoirudin Khoirudin
Spektrum Industri Vol. 19 No. 1: April 2021
Publisher : Universitas Ahmad Dahlan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/si.v19i1.19272

Abstract

XYZ is a company engaged in the paper industry, which is located in West Java. Since established in 1976, this company has produced photocopy paper in the form of reams. This company has advantages in terms of paper quality so that its products dominate the international market and the domestic market. With a very tight level of market competition, companies must continue to work optimally to continuously improve employee performance and company productivity. The purpose of this study is to plan an incentive-based employee wage system, which is suitable and in accordance with company conditions. Incentive wages are important as one of the main components to increase and maintain motivation, performance and work integrity. This research was conducted in the Finishing Department of the copy manual wrapping work unit. The method used are the Piecework method, the Halsey method, and the Rowan method. The result of this research is a comparison of the amount of wages between the wage system used by the company and the three methods of incentive pay as a company alternative. From the comparison of the three incentive wage design methods, the authors recommend the Halsey method as the best method that is able to provide benefits for both the company and for workers which we call dual mutualism. The Halsey method still guarantees a basic wage and a decent incentive wage for workers as a motivation to work faster and better.
Optimization of TIG welding parameters for tensile load testing on dissimilar material joints of galvanized steel (SGCC) and low carbon steel (SPCC-SD) Arul Basit; khoirudin khoirudin; Sukarman Sukarman; Tegar Dwi Cahyo; Syahrul Taufik Hidayat; Ridhwan Shalahuddin Saputra; Trisa Ramadan; Nana Rahdiana
Jurnal Polimesin Vol 22, No 4 (2024): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i4.5025

Abstract

Tungsten Inert Gas (TIG) welding uses a tungsten electrode and argon or helium gas for shielding. It offers excellent shielding, stable arc, adjustable heat input, minimal spattering, and attractive welds. Widely used in various industries, especially for thin materials like galvanized sheets, TIG welding can be challenging for dissimilar materials like galvanized steel and low-carbon steel due to their different melting points. Studying optimal welding parameters is crucial for success. This research focuses on TIG welding of SPCC-SD (JIS 3141) and SGCC (JIS 3302) materials with thicknesses of 0.6 mm and 0.8 mm. The electric current was varied at 45, 50, and 55 A, whereas the gas flow rate was varied at 12, 15, and 18 LPM. The weld bead diameter was varied as 5, 8, and 10 mm. Subsequently, the welded samples were subjected to tensile testing using a SHIMADZU AGS-X 10Kn STD E200V tensile testing machine. The data from the tensile tests were analysed using S/N ratio analysis and Analysis of Variance (ANOVA) with the assistance of the Minitab software. The results of the S/N ratio analysis indicated that the most optimal parameters were an electric current of 55 A, flow rate of 15 LPM, and weld bead diameter of 10 mm. Conversely, the ANOVA revealed that the weld bead diameter significantly influenced the tensile load in TIG welding of SPCC-SD (JIS 3141) with SGCC (JIS 3302) materials, accounting for up to 44.42% of the variation. Following the weld bead diameter, the flow rate and welding current contributed to 21.93% and 16.41%, respectively.
Co-Authors Acim Maulana Ade Suhara Agus Suprihanto Ahmad Fauzi Ahmad Hidayat Amar Amar Amir Amir Amri Abdulah Anwar Ilmar Ramadhan Arul Basit Chepi Reynaldir Choirul Anwar Dicky Dimyati Dodi Mulyadi Fathan Mubina Dewadi Gatot Triyanto Istianto Budhi Rahardja Karyadi Murtalim Nana Rahdiana Nana Rahdiana Ricko Valderama Ricky R. Saputro Ridhwan Shalahuddin Saputra Rizki Aulia Nanda Safril Sani Suhardiman Shieddieque, Apang Djafar Shieddique, Apang Djafar Siswanto Siswanto Sukarman Sukarman Sukarman Sukarman Sumanto Sumanto Suripto, Heri Syahrul Taufik Hidayat Tegar Dwi Cahyo Tito Chaerul Pratama Trisa Ramadan