APPLICATION OF SMED METHOD TO REDUCE THE SETUP TIME

Öz

Lean Production System aims to meet the customer demand without any imperfection not only in the shortest time and in small batches but also by consuming less resource. It is the fundamental priority to shorten the duration of setup activities, which carried out from the end of the previous production of a batch to the beginning of the next the production. From this point of view, Single Minute Exchange of Die (SMED), which is one of the lean production techniques, is an effective method to reduce losses of time during machine setup periods. SMED approach, which enables a faster setup, has been implemented on injection machines of a company, which is manufacturing testing, and assembly parts in automotive and electrical sector. The current case was analyzed and improvements were made with SMED and 5S techniques. As a result, both durations (before and after the implementation of two techniques mentioned above) were measured and it has been observed that setup durations were reduced from 65.30 minutes to 23.62 minutes. 

Anahtar Kelimeler

• Toyota Production System,Exchange of Die,5S,Internal Setups,External Setups

HAZIRLIK SÜRESİNİN AZALTILMASINDA SMED YÖNTEMİ UYGULAMASI

Öz

Yalın üretim sistemi, müşteri talebini az kaynak kullanımı ile en kısa sürede, küçük partiler halinde ve hatasız olarak karşılamayı amaçlamaktadır. Bir partinin üretiminin bitiminden diğer partinin üretiminin başlangıcına kadar gerçekleştirilen faaliyetlerin sürelerinin toplamından oluşan hazırlık zamanının kısaltılması bu amacın gerçekleşmesi için gereklidir. Bu doğrultuda yalın üretim tekniklerinden biri olan SMED (Single Minute Exchange of Die: tekli dakikalarda kalıp değişimi) makine hazırlık zamanlarındaki kayıpları azaltmaya yönelik kullanılan etkin bir yöntemdir. Bu çalışmada daha hızlı iş değişimini mümkün kılan SMED yaklaşımı, otomotiv ve elektrik sektörlerinde test ve montaj parçaları üreten bir firmada enjeksiyon makinelerinde uygulanmıştır. Mevcut durum analiz edilmiş, SMED yaklaşımı ve 5S ile iyileştirmeler yapılmıştır. İyileştirme öncesi ve sonrası hazırlık zamanları ölçülmüş ve 65,30 dakikalık süre, 23,62 dakikaya kadar düşürülmüştür. 

Anahtar Kelimeler

• Toyota Üretim Sistemi,Kalıp Değişimi,5S,iç değiştirme

Kaynakça

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