Yusuf ÖZÇATALBAŞ

Çarpılma Kuvvetleriyle Kaynak Sırasının Optimizasyonu ve Çeşitli Uygulamaların Değerlendirilmesi

Bu çalışmada, kompleks kaynaklı birleştirmeli konstrüksiyonların imalat sürecinde ve sonrasında oluşabilecek çarpılmaların belirlenmesi için yeni bir metot geliştirilmiş ve uygulanmıştır. Kaynaklı birleştirme sürecinde çarpılma kuvvetlerinin ölçülmesi esasına dayanan bu yöntemin uygulanması ile karmaşık kaynaklı yapıların kaynak sıralarının (KS) optimizasyonu yapılabilmektedir. Yöntemin esası, rijit bir kafes hücre içerisine yerleştirilmiş konstrüksiyon modeline uygulanan kaynak sıralarının meydana getirdiği çarpılma kuvvetlerinin ölçülmesine dayanır. Üç boyutlu ölçülen kuvvetlerin yönleri ve şiddetlerine bağlı olarak çarpılma eğilimleri belirlenebilir. Çeşitli KS uygulamalarından elde edilen kuvvetlerin sayısal değerleri kullanılarak yapılan analizlerle çarpılma formları oluşturulabilir. Kaynaklı konstrüksiyonlarda en uygun kaynak sıralarının belirlenmesi ve minimum çarpılma/kalıntı gerilme oluşturulması açısından uygun bir metot olarak değerlendirilmiştir.

Optimization of Welding Sequence by Distortion Forces and Evaluation of Some Applications

In this study, a new method has been developed to determine the distortion tendencies of welded structures, by means of distortion forces, caused by welding process in complex welded structures. During welding process, optimization of complex welding procedures can be done with this method based on measuring of distortion forces. For this purpose, a rigid lattice frame and load cells (LCs), which takes the distortion forces in the welded structures, were designed. Distortions in the some samples, which occur at the welding of connection points, were obtained as forces by means of LCs. Distortion tendencies can be determined depend on direction and intensity of measured forces in 3D space. By using the numerical value of the force obtained from the various welding sequence (WS) applications, representative distortion forms can be created. The method can be used to determine the most appropriate WS and minimal distortion/residual stress in welded structures.

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