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Riki Effendi
SINTA Author ID: 6005340, University of Muhammadiyah Jakarta
Automotive Engineering Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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Pengendalian kualitas cacat scrap blown ban TBR 11R22.5 dengan metode QCC dan seven tools pada PT. Gajah Tunggal Tbk Taufik Taufik; Edi Supriyadi; Riki Effendi
Jurnal POLIMESIN Vol 19, No 1 (2021): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v19i1.2008

Abstract

PT. Gajah Tunggal Tbk adalah sebuah perusahaan yang bergerak dibidang manufaktur dengan produk ban untuk berbagai kendaraan dan kegunaan. Dalam proses produksi terhadap produk yang dihasilkan, masih terdapat produk cacat (khususnya cacat scrap blown) yang terjadi setiap hari dan bersifat fluktuatif, sehingga menyebabkan pengiriman produk kepada konsumen menjadi terlambat. Pada penelitian ini, penulis ingin mengatasi masalah tersebut dengan metode yang cocok untuk mengurangi cacat dan mengendalikan mutu produk adalah dengan menggunakan metode QCC (Quality Control Circle) dengan menerapkan langkah PDCA (Plan-Do-Check-Action) dan dengan alat bantu Seven Tools (Stratifikasi, Grafik Histogram, Diagram Pareto, Diagram Sebab-Akibat, Grafik Pengendali). Setelah dilakukan perbaikan dengan metode tersebut, hasilnya terbukti menurunkan rata-rata persentase cacat scrap blown dari 0.54% menjadi 0.16% dan menurunkan rata-rata persentase total cacat scrap dari 3.29% menjadi 1.70%. Untuk megurangi cacat scrap blown dibuatlah SOP baru sebagai acuan saat proses produksi dan tindakan lainnya untuk mengurangi cacat scrap produksi guna mencapai target scrap 1%. Jadi, faktor yang menyebabkan cacat scrap blown adalah material kurang atau tidak lengket dan hasil implementasi dengan metode QCC dibantu dengan alat bantu seven tools dapat mengurangi atau menurunkan cacat scrap blown dan persentase total cacat scrap.
Scientific literature reviews; Investigating analysis of turbine blade operational failure Riki Effendi; Franka Hendra
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.2899

Abstract

As a source of energy in industry and power plants, turbines must have reliability in operation.. One that affects the performance of the turnin is the condition of the blades. The multi-cycle fatigue experienced by the blades of compressors and turbines caused by dynamic stresses caused by the vibration and resonance of the blades in the engine operating time is a common type of failure. Over the past five decades, researchers have studied and investigated turbine blade failure. The main purpose of this article is to provide a brief overview of recent studies on turbine blade failure. The author only focuses on describing some of the failure methodologies used in various studies to investigate turbine blades. This article discusses each of these factors in more detail
PRODUCT DESIGN SIMPLIFICATION TO INCREASE COMPETITIVENESS WITH A VALUE ENGINEERING APPROACH TO THE WASTAFEL FLEAN INDUSTRY Ruspendi Ruspendi; Anthon Rudy W; Riki Effendi
Jurnal POLIMESIN Vol 19, No 2 (2021): Agustus
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v19i2.2050

Abstract

The strength of international competitiveness encourages companies to do optimization. Therefore, the increase in productivity which improves competitiveness must be done. The purpose of this study is to look for the best solution to optimize designs with the best value and cheapest engineering approach that can be executed on the sink faucet production. After a value engineering, obtained high-cost items such as components with brass/metal, local and imported material. Then look for alternative designs with cost criteria, namely Life Circle Cost (LCC) and the Initial Cost as well as with zero one non-cost criteria matrix and pairs matrix. The result obtained a design that qualifies for the product by replacing the faucet's construction and dimensions but still meets the requirements of comfort, functionality, and safety in use. With this alternative earned savings of 19.6% of the total cost.
Co-Authors Anthon Rudy W Edi Supriyadi Franka Hendra Franka Hendra Sukma Ruspendi Ruspendi Taufik Taufik