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All Journal Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Mekanik Terapan
Widia Setiawan
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Automotive Engineering Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisis Cacat Produk Dimensi Diameter Snap Tidak Standar pada Botol 100 ml Berbahan Dasar High-Density Polyethylene (HDPE) Achmad Afiq Ananda Putra; Widia Setiawan; Braam Delfian Prihadianto; Galuh Bahari
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 9 No. 1 (2025)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v9i1.2152

Abstract

Extrusion blow molding is a process used to form plastic bottles, with High-Density Polyethylene (HDPE) being the most commonly used material. A defect in the snap diameter that did not meet the standard was identified during the production of 100 ml bottles at PT X Jakarta, potentially reducing product quality and affecting its functionality. This study aims to identify the root causes of this defect and propose corrective actions and improvements to enhance product quality. The methodology includes using a Fishbone Diagram to determine the root causes, applying the 5W+1H analysis to develop corrective action proposals, and implementing the Poka-Yoke method as an improvement strategy. The findings indicate that the defects are caused by three main factors: human, method, and machine. Human-related factors include a lack of operator understanding of quality standards, insufficient training, and a limited number of technicians. Method-related factors involve inadequate maintenance and improper bottle handling, while machine-related factors include mold dimension changes, dirty die heads, and the need for machining parameter adjustments. The proposed corrective actions for human factors involve regular training, the provision of Standard Operating Procedures (SOPs), visual guidelines, and additional technicians. Machine-related improvements include periodic inspections, die head cleaning, and machining parameter testing, while method-related improvements focus on scheduled preventive maintenance and proper bottle runner arrangement. Further improvements involve implementing the Poka-Yoke method by installing an alarm siren that activates when air compressor pressure falls below the standard and adding markings to help operators better understand machine parameters during production.
Perancangan Chassis Rail Transfer Trolley dengan Kapasitas 970 kg Pramudita Januarki; Widia Setiawan; Benidiktus Tulung Prayoga; Agustinus Winarno
Jurnal Mekanik Terapan Vol 6 No 1 (2025): April 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i1.6843

Abstract

Perubahan tata letak material secara manual dengan bantuan peralatan transpotasi rail tranfer traolley dalam industri manufaktur menciptakan pengurangan biaya produksi. Hal ini terjadi pada salah satu industri manufaktur di mana muncul kebutuhan kelancaran proses suplai komponen menuju robot welding station baru. Komponen yang harus disuplai bermassa sekitar 970 kg dengan dimensi berkisar 3440 mm × 955 mm × 180 mm. Jarak asal komponen menuju station hanya sekitar 18 m. Massa yang berat menjadi penghambat jika ditangani tenaga manusia sehingga  perlu dilakukan perancangan alat rail transfer trolley. Penelitian terdahulu sudah melakukan perhitungan elemen mesin rail transfer trolley namun belum ada yang mengkaji sasisnya secara mendalam. Peneletian ini merancang chassis rail transfer trolley dengan analisis perbandingan variasi bentuk penampang material SS400 menggunakan finite element analysis. Dengan berbagai bentuk penampang profil seperti hannel, I-section dan hollow rectangular. Analisis yang dilakukan bertujuan untuk mengetahui faktor keamanan dan penampang chassis yang paling kuat. Hasil penelitian menunjukkan ketiga variasi penampang chassis memenuhi safety factor minimum 4. Chassis berpenampang I-section memiliki nilai von mises stress terendah yaitu 24,61 MPa dengan nilai safety factor tertinggi yaitu 9,96. Data yang diperoleh dapat digunakan sebagai referensi dalam menentukan material untuk chassis rail transfer trolley.
Co-Authors Achmad Afiq Ananda Putra Agustinus Winarno Benidiktus Tulung Prayoga Braam Delfian Prihadianto Galuh Bahari Pramudita Januarki