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All Journal Jurnal Teknologi dan Manajemen Industri Terapan Equivalent: Jurnal Ilmiah Sosial Teknik
Muhammad Prasha Risfi Silitonga
Politeknik Negeri Jakarta, Indonesia
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Social Sciences

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The Influence Of Work Life Balance On Employee Performance With Work Ethic As A Moderating Variable Asmita Wulansari Dg. Liwang; Wulandari; Adrian Polim; Muhamad Risal Tawil; Muhammad Prasha Risfi Silitonga
Jurnal Teknologi dan Manajemen Industri Terapan Vol. 4 No. I (2025): Jurnal Teknologi dan Manajemen Industri Terapan
Publisher : Yayasan Inovasi Kemajuan Intelektual

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55826/jtmit.v4iI.1099

Abstract

This study is a quantitative study with an explanatory approach, namely an approach that is backed by previous research to create hypotheses, modify hypotheses, and prove them. The data used in this study are primary data that researchers obtained from employees working at Bugland Furniture spread throughout Indonesia totaling one hundred and seventy-five employees. The data obtained were analyzed using the smart PLS 4.0 analysis tool. The result in this article show that the P-Values leading to positive and below the 0.05 significance level, namely 0.002. These results indicate that a good Work Life Balance of an employee can improve physical health, mental health, and financial stability. Ultimately, the three indicators mentioned above can affect Employee Performance. In addition, the Work Ethic variable in this article can also strengthen the influence of the Work Life Balance variable on Employee Performance because of the same thing, namely the P-Values leading to positive and below the 0.05 significance level, namely 0.000. These results indicate that the Work Ethic variable can help the Work Life Balance variable in influencing Employee Performance. On this basis, it can be concluded that the first and second hypotheses in this article can be accepted and proven.
A PDCA Eight-Step Approach to Misrun Defect Reduction in Hatchback Gasoline Car Piston Castings Muhammad Prasha Risfi Silitonga; Chika Mutiara Syafira; Riyan Setiyadi; Hilmana Radhia Putera
Equivalent: Jurnal Ilmiah Sosial Teknik Vol. 8 No. 1 (2026): Equivalent: Jurnal Ilmiah Sosial Teknik
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jequi.v8i1.237

Abstract

Background:Misrun defects represent a critical quality issue in metal casting processes, particularly in gasoline piston manufacturing, as they lead to material waste, reduced productivity, and increased production costs. At PT XYZ, misrun defects constituted the highest proportion of total defects in 2024, indicating the need for systematic quality improvement. Objective:This study aims to analyze the root causes of misrun defects in hatchback gasoline car piston castings and evaluate the effectiveness of corrective actions using the PDCA Eight-Step strategy. Method:A qualitative–quantitative approach was employed through the application of the PDCA (Plan–Do–Check–Action) cycle with an Eight-Step problem-solving framework. Root cause analysis was conducted using fishbone diagrams and the 5 Why method. Corrective actions focused on mold design, cooling inspection procedures, and gas flow optimization. Results:The findings show that misrun defects accounted for 52.56% of total defects, with piston type X contributing 9.84% of the overall misrun rate. After implementing corrective measures—namely additional and repositioned gas vents, standardized cooling mold inspections, and modified argon gas spray direction—the misrun defect rate was reduced to 5.16%. This represents a 47.5% reduction, exceeding the company’s quality improvement target of 40%. Conclusion:The PDCA Eight-Step strategy proved effective in significantly reducing misrun defects and improving casting quality. This study provides a practical and replicable framework for defect reduction in precision casting industries while reinforcing the theoretical relevance of structured PDCA-based quality improvement in manufacturing systems.
Co-Authors Adrian Polim Asmita Wulansari Dg. Liwang Chika Mutiara Syafira Hilmana Radhia Putera Muhamad Risal Tawil Riyan Setiyadi Wulandari