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All Journal Public Health and Safety International Journal (PHASIJ) Engineering and Technology International Journal (EATIJ)
Dewadi, Fathan
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary

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Journal : Engineering and Technology International Journal (EATIJ)

 1 
Optimization of Production Processes through Lean Manufacturing Techniques in the Automotive Industry Dewadi, Fathan; Suhara, Ade; Aulia Nanda, Rizki; Karyadi, Karyadi; Amir, Amir
Engineering and Technology International Journal Vol 6 No 02 (2024): Engineering and Technology International Journal (EATIJ)
Publisher : YCMM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55642/eatij.v6i02.795

Abstract

The objectives of this study are to identify and analyze the most effective Lean Manufacturing techniques in improving the efficiency of the production process in the automotive industry and identify the types of waste that occur in the automotive production process and develop strategies to reduce or eliminate them through the application of Lean ManufacturingMethod in this study is to identify the main themes in the literature regarding Lean Manufacturing techniques, implementation challenges, and impacts on production efficiency and quality, combine the analysis results to provide a comprehensive picture of Lean Manufacturing implementation, including best practices and recommendations, assess the quality and relevance of the literature, and identify gaps in existing research. Lean implementation often faces challenges such as change resistance, resource limitations, and the need for intensive training. Literature studies note that successful Lean implementation depends on managerial support and organization-wide commitment. Lean techniques are proven to improve production efficiency by reducing cycle time, decreasing lead time, and improving material flow. 5S techniques improve organization and cleanliness in the workplace. Identification of the types of waste in the automotive production process can significantly reduce or eliminate such waste. Well-implemented Lean techniques can reduce costs and improve product quality simultaneously, providing mutually supportive benefits and increasing customer satisfaction and company profitability.
Effect of Material Type and Design on Hook Crane Performance: Stress, Deformation, and Safety Factor Analysis Dewadi, Fathan; Amir, Amir
Engineering and Technology International Journal Vol 6 No 02 (2024): Engineering and Technology International Journal (EATIJ)
Publisher : YCMM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55642/eatij.v6i02.974

Abstract

This simulation aims to evaluate the stress, deformation, and strain values of the crane hook structure to ensure safe load handling and prevent functional failure. In this study, AISI 1015, AISI 1035, and alloy steel casing materials were tested, along with two different hook designs: trapezoidal and circular. The trapezoidal design had base dimensions of 34.50 mm and 58.00 mm, with a top surface area of 55.00 mm and a radius of 10.00 mm. The circular design has a diameter of 58.00 mm. Simulations were carried out using SolidWorks on AISI 1015 with Mass 10 tons, stress 279.68 N/mm², displacement 0.61 mm. on AISI 1035: Mass 12 tons, stress 310.11 N/mm², displacement 0.61 mm. on Alloy steel with Mass 8.5 tons, stress 236.87 N/mm², displacement 0.59 mm. For circular design on AISI 1015 with a mass of 9.5 tons, stress 279.69 N/mm², displacement 0.57 mm. on AISI 1035 with a mass of 10 tons, stress 310.25 N/mm², displacement 0.76 mm. Alloy steel with a mass of 8 tons, stress 237.28 N/mm², displacement 0.55 mm. Each material exhibits different mechanical characteristics, which affect stress, deformation and strain. Based on the results, the AISI 1035 material with a circular design supports a maximum load of 9.5 tons, achieving a safety factor of 1.68, which is close to the minimum threshold of 1.8 for safe operation.
Design, Development, and Performance Evaluation of a Closed-System Batik Fabric Drying Machine for Small-Scale Industry Applications Ekayuliana, Arifia; Dewadi, Fathan; Yudisha, Nabila; Rosid, Ibnu; Fauzi, Al; Purdiatama, Muhamad; Ludwika, Adinda; Royan, Ahmad; Nurcholis, Muhammad
Engineering and Technology International Journal Vol 7 No 03 (2025): Engineering and Technology International Journal
Publisher : YCMM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55642/eatij.v7i03.1156

Abstract

This study presents the design and performance evaluation of a closed-system batik fabric drying machine for small-scale industries. The system integrates a spinner for initial dewatering and a hot-air blower with thermostatic control at 60 °C. Experimental tests examined drying time, temperature stability, and fabric quality. Results showed that 2 kg of batik fabric dried in 18 minutes—about 70 % faster than traditional sun drying. The closed-loop air circulation improved thermal uniformity (±1.5 °C deviation) and reduced energy use by 25 %. No color fading or fiber damage occurred, and ultraviolet lamps prevented microbial growth. This design demonstrates that combining mechanical efficiency, thermal control, and ergonomics can enhance energy efficiency and production reliability for micro-scale batik industries.
Co-Authors Amir Amir Aulia Nanda, Rizki Cahyo Wibowo Dodi Mulyadi Ekayuliana, Arifia Fachry Abda El Rahman Fauzi, Al Karyadi Karyadi Karyadi Ludwika, Adinda Nabila Yudisha Nanda, Rizki Nurcholis, Muhammad Purdiatama, Muhamad Rosid, Ibnu Royan, Ahmad Suhara, Ade