Investigation on the Effect of Projection Types on Stud Weld Strength by Taguchi Method

Yıl 2024, , 1353 - 1364, 25.09.2024

Hilal Kır , Mustafa Yazar , Şükrü Talaş

https://doi.org/10.2339/politeknik.1280163

Öz

In this study, the effect of different weld projections on the mechanical properties of stud welds was analyzed using the Taguchi experiment planning method, using a projection welding machine with a capacity of 100 kVA with MFDC transformer. The samples were subjected to the tensile rupture force test with a destructive test device. The aim of this study was to ensure product safety by capturing the spot-welding quality, which is determined by the specifications of the automotive main industry, using a bolt with a lower weight. In this study, 1.5 mm WSS-M1A365-A11 uncoated steel sheet and 8.8 quality M6x1.00x25 triple projection uncoated welding bolts and 8.8 quality M6x1.00x18.5 ring shaped weld bolts were used as stud welding bolts. Different welding times, different welding currents and different welding clamping forces were used on the WSS-M1A365-A11 steel sheet samples in the stud welding operation with bolts. Taguchi analysis showed that ring shaped stud weld bolts required welding parameters of 32 ms welding time, 27 kA welding current and 500 daN welding force, while triple projection stud welding was found to perform the best optimum weld with 23 ms welding time, 18 kA welding current and 350 daN force.

Anahtar Kelimeler

Projection welding, Taguchi method, Weld nozzle structure

Destekleyen Kurum

Şahinkul Makina ve Yedek Parça Sanayi Tic. A.Ş.

Proje Numarası

ARGE-2022-33 2201760000

Teşekkür

Scholarship in this study was supported by TÜBİTAK BİDEB (Turkish Scientific and Technological Research Council, Scientist Support Department) (Project No: 119C053).

Kabartı Türlerinin Saplama Kaynak Dayanımına Etkisinin Taguchi Yöntemiyle İncelenmesi

Öz

Bu çalışmada, MFDC trafolu 100 kVA kapasiteli projeksiyon kaynak makinası kullanılarak farklı kaynak kabartı yapılarının saplama kaynaklarının mekanik özelliklerine olan etkisi, Taguchi deney planlama yöntemi kullanılarak analiz edilmiştir. Numuneler tahribatlı test cihazı ile çekme koparılma kuvveti testine tabi tutulmuştur. Bu çalışmanın amacı, başta otomotiv ana sanayinin şartnamelerle belirlemiş olduğu punta kaynak kalitesini, ağırlığı daha düşük olan bir cıvata ile yakalayarak ürün güvenliğini sağlamaktır. Çalışmamızda 1,5 mm WSS-M1A365-A11 kaplamasız çelik sac ve saplama kaynak cıvatası olarak ise 8,8 kalite M6x1.00x25 üç kabartılı kaplamasız kaynak cıvatası ve 8.8 kalite M6x1,00x18,5 çember kabartılı kaynak cıvatası kullanılmıştır. WSS-M1A365-A11 çelik sac numuneleri üzerine, kaynak cıvataları ile nokta kaynak operasyonunda değişken olarak farklı kaynak süreleri, farklı kaynak akımları ve farklı kaynak baskı kuvvetleri kullanılmıştır. Taguchi analizleri göstermiştir ki, Ring kabartılı saplama kaynak parametreleri, 32 ms kaynak zamanı, 27 kA kaynak akımı ve 500 daN kaynak kuvveti gerektirirken, üç kabartılı saplama kaynak optimum kaynak civatası için 23 ms kaynak zamanı, 18 kA kaynak akımı ve 350 daN kuvveti olarak bulunmuştur.

Anahtar Kelimeler

Projeksiyon kaynak, Taguchi yöntemi, Kaynak çentik yapısı

Proje Numarası

ARGE-2022-33 2201760000

Kaynakça

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