M4 Somununun Sıcak Haddelenmiş Düşük Karbonlu Çelik Sac Üzerine Projeksiyon Kaynağında Kaynak Parametrelerinin Çekme Yükü Üzerindeki Etkisi

Year 2024, Volume: 5 Issue: 3, 224 - 236

Mustafa Yazar , Şükrü Talaş , Hilal Kır

https://doi.org/10.52795/mateca.1549603

Abstract

Projeksiyon kaynak yöntemi, uygulama kolaylığı nedeniyle otomotiv endüstrisinde sıkça kullanılmaktadır ve karmaşık parçaların hızlı bir şekilde kaynaklanmasına olanak tanıyarak iş gücü yoğun işlemleri azaltmaya yardımcı olur. Bu çalışma, sıcak haddelenmiş Düşük Karbonlu çelik (WSS-M1A365-A22) sac ile M4 çelik somunların projeksiyon kaynak işlemi sırasında kaynaklanabilirlik performansı üzerindeki parametrelerin etkisini incelemektedir. Çalışmanın amacı, otomotiv endüstrisi tarafından belirtilen minimum ve maksimum değer aralığı içindeki kırılma yükünü inceleyerek ürün kalitesini artırmaktır. Bu çalışmada, M4 kaynak somununun çelik sac üzerine projeksiyon kaynağında kaynak parametrelerinin kalitesi üzerindeki etkisi, UNIS markalı MFDC (Orta Frekans Doğru Akım) transformatörlü 100 kVA projeksiyon kaynak makinesi kullanılarak araştırılmıştır. Örnekler, tamamen yıkıcı bir test cihazı kullanılarak çekme kopma kuvveti testine tabi tutulmuştur. Testlerde 3 mm WSS-M1A365-A22 çelik sac ve M4 DIN 928 kaynak somunu kullanılmıştır. Optimum koşulları belirlemek için akım değeri, kaynak süresi ve elektrot sıkıştırma kuvveti değiştirilmiştir. Sonuçlar, 14.5 kA akım değeri, 23 ms kaynak süresi ve 480 dAN elektrot sıkıştırma kuvvetinin çekme yükü koşullarını karşıladığını göstermiştir.

Keywords

Projeksiyon kaynağı, M4 kaynak somunu, WSS-M1A365-A22 çelik sac

Project Number

ARGE-2023-038 2300810000

Effect of Welding Parameters on Pull-through Load in Projection Welding of M4 Nut to Hot Rolled Low Carbon Steel Sheet

Abstract

Projection welding is frequently used in automotive industry for its practicality in application and also help complex parts to be welded fast enough to reduce labour intensive processing. This study investigates the effect of parameters of projection welding on the weldability performance of dissimilar steels of hot rolled Low Carbon steel (WSS-M1A365-A22) sheet to M4 steel nuts in the projection welding operation. The aim of this study was to improve product quality by examining the fracture load within the minimum and maximum value range specified by the automotive industry. In this study, the effect of welding parameters on the quality of the projection weld of M4 weld nut on steel sheet was investigated using a 100 kVA projection welding machine with UNIS brand MFDC (Mid Frequency Direct Current) transformer. The samples underwent a tensile snap force test using a fully destructive testing device. The tests used a 3 mm WSS-M1A365-A22 steel sheet and M4 DIN 928 welding nut. The current value, welding time, and electrode compression force were varied to determine the optimal conditions. The results showed that a current value of 14.5 kA, welding time of 23 ms, and electrode compression force of 480 dAN met the pull-through load conditions.

Keywords

Projection welding, M4 weld nut, WSS-M1A365-A22 steel sheet

Project Number

ARGE-2023-038 2300810000

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