Üretimde Hazırlık Sürecinin Optimize Edilmesi: Yeni Bir SMED Tabanlı Çerçeve

Year 2025, Volume: 13 Issue: 4, 1528 - 1543, 30.10.2025

Gül İmamoğlu , Yildiz Köse , Emre Çevikcan

https://doi.org/10.29130/dubited.1610836

Abstract

Üretici şirketler, çeşitli müşteri taleplerini karşılamak için ekonomik olarak küçük miktarlarda üretim yapmaya çalışmaktadır. Ancak, ürün çeşitliliğinin artması daha fazla hazırlık görevi ve daha uzun üretim süreleri ile oluşturur. Bu soruna yönelik yaygın bir çözüm, Tekli Dakikalarda Kalıp Değişimi (SMED: Single-Minute Exchange of Dies) tekniğini kullanarak hazırlık sürelerini azaltmaktır. Bu çalışma, paralel işgören kullanımını içeren SMED metodolojisi için yeni bir yol haritası sunmaktadır. Yol haritası iki ana aşamadan oluşur: ilk olarak, SMED'in ayrıntılı uygulaması, ardından bir çizelgeleme modeli aracılığıyla paralel işçilerin atanması. Klasik SMED uygulamasıyla, hazırlık süresi 67 dakikadan 49 dakikaya düşürülmüştür. SMED katma değer sağlamayan süreleri azaltırken, üretim süresini optimize etmek ve makine kullanımını en üst düzeye çıkarmak için paralel işçiler atanması gerekmektedir. Paralel işgören kullanımı için geliştirilen çizelgeleme modeli, maksimum yayılım süresini yaklaşık %48 oranında azaltmıştır. Bu yol haritası, paralel işçi çizelgelemesini ilk kez SMED ile entegre ederek ve hazırlık süreçleri için etkili bir matematiksel model önererek literatüre katkıda bulunmaktadır. Bir diğer önemli yenilik ise modelin hazırlık görevleri arasındaki öncelik ilişkilerini hesaba katma yeteneğidir. Önerilen SMED tabanlı yol haritası, bir elektrik-elektronik şirketindeki basmalı düğmeli anahtar ürün ailesinin hazırlık sürecine uygulanmıştır. Uygulama, hazırlık sürelerinin azaltılmasına ve iş prosedürlerinin iyileştirilmesi ile yeni yaklaşımın etkinliğini göstermiştir.

Keywords

Hazırlık süreci , SMED , Çizelgeleme , Paralel işgören

Optimizing Setup Process in Manufacturing: A Novel SMED-Based Framework

Abstract

Manufacturing companies strive to economically produce small batches to meet diverse customer demands. However, small batch production often leads to higher setup times and increased unit costs. A common solution to this issue is reducing setup times using the Single-Minute Exchange of Dies (SMED) technique. This study introduces a new roadmap for the SMED methodology, incorporating parallel worker utilization. The roadmap consists of two phases: a detailed SMED implementation and a scheduling model integrating parallel workers. This study contributes to the literature by integrating parallel worker scheduling with SMED for the first time and proposing an efficient mathematical model for setup processes. Another key innovation is the model’s ability to account for precedence relationships between setup tasks. The proposed SMED-based roadmap was applied to the setup process of a push-button switch product family in an electrical-electronics company. The setup time was reduced from 67 minutes to 48 minutes through SMED implementation. While SMED reduces non-value-added times, optimizing the makespan requires assigning parallel workers to maximize machine utilization. The developed scheduling model reduced the maximum makespan by about 48%. The application led to reduced setup times and improved work procedures, demonstrating the effectiveness of the new approach.

Keywords

Setup Process , SMED , Scheduling , Parallel Workers

Ethical Statement

This study does not involve human or animal participants. All procedures followed scientific and ethical principles, and all referenced studies are appropriately cited.

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