Toplam ekipman etkinliği (OEE) analizi ve iyileştirmesi: Otomotiv sektörü sızdırmazlık elemanları işletmesinde uygulama

Year 2023, , 69 - 82, 25.03.2023

Nesimi Kök , Mehmet Selami Yıldız

https://doi.org/10.58308/bemarej.1228960

Abstract

Bu çalışmanın amacı otomotiv yan sanayi sektöründe sızdırmazlık elemanları üreten bir işletmenin darboğaz oluşturan makinelerindeki sorunlarını ortaya çıkarmak ve çözüm önerileri geliştirmektir. Çalışmada, Toplam Ekipman Etkinliği (OEE) yöntemleri kullanılmıştır. Kullanılabilirlik, Performans, Kalite Etkinliklerinin bir fonksiyonu olarak kullanılan OEE analizleri iki ayrı hat için tamamlanmıştır. Otomotiv yan sanayi sektörüne parça tedariki sağlayan firmanın üç ay boyunca ilgili verileri toplanarak analizler yapılmıştır. Üretim sistemlerinde kullanılan iki aynı teknolojiye sahip üretim hattı OEE değerleri arasında farklılıklar tespit edilmiştir. Bu farklılıkların nedenleri arasında duruş sürelerinin fazla olması, hatalı ürünlerdeki analizlerin yetersiz olması öne çıkan bulgular olarak değerlendirilmiştir. Toplam Ekipman Etkinliğine (OEE) yönelik çerçeve eksikliğini gidermek uygulamalara zenginlik kazandırmak ve otomotiv yan sanayi sektöründe faaliyet gösteren bir işletmenin darboğaz oluşturan makinelerindeki sorunlarını ortaya çıkararak çözmektir. OEE değerlerine yönelik ortaya çıkan analizler sonrası işletmeye değerlerin iyileştirilebileceği alanlar ve kayıpların kök nedenlerine ait öneriler sunulmuştur. İşletmeye Total Productive Maintenance (TPM) ve OEE kapsamında mevcut durumlarının hangi seviye de olduğuna yönelik analiz sonuçları verilmiştir. OEE hesaplamalarında kullanılan bileşenlerin teorik bilgi ile karşılaştırılması yapılarak işletmenin iyileştirmesi gereken alanlar paylaşılmıştır. Endüstri uygulamaları ile literatür uyumunun eşleştirilmesi sağlanmıştır.

Keywords

Toplam Verimli Bakım, Toplam Ekipman Etkinliği, OEE analizi, Otomotiv endüstrisi

Overall equipment efficiency (OEE) analysis and improvement: Application in an automotive sealing system industry

Abstract

The aim of this study is to reveal the problems in the bottleneck machines of an enterprise producing sealing elements in the automotive supplier industry and to develop solution proposals. Overall Equipment Effectiveness (OEE) methods were used in this study. OEE analyzes used as a function of availability, performance and quality efficiency were completed for two lines. The relevant data of the company, which supplies parts to the automotive company were collected for three months and analyzed. Differences were determined between the OEE values of two production lines with the same technology used in production systems. Among the causes for these differences, excessive downtime and insufficient analyzes on failure products were considered as significant findings. Practicing diversity to eliminate the lack of framework for OEE and to solve the problems of an enterprise operating in the automotive industry by revealing the bottleneck machines. After the analysis of the OEE values, recommendations were made about the areas where the values could be improved and the root causes of the losses. In addition, analyzes regarding the current status of the company within the scope of TPM and OEE were given. The areas of needing of the company were shared by comparing the components used in OEE calculations with the theoretical knowledge. Industry practices and literature compatibility were matched.

Keywords

Total Productive Maintenance(TPM), Overall Equipment Effectiveness (OEE), OEE Analysis, Automotive industry

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