Investigation on Dressing Frequency, Welding Current and Time Using Taguchi Methodology in Robotic Spot Welding with SmartblockTM

Year 2024, Volume: 24 Issue: 1, 207 - 216, 27.02.2024

Hilal Kır , Şükrü Karabulut , Mustafa Yazar , Şükrü Talaş

https://doi.org/10.35414/akufemubid.1337900

Abstract

Electrode wear and its effective use in robotic resistance spot welding are a condition that should be followed closely. The benefit-harm effect of an electrode that is replaced early or an electrode that exceeds its lifespan is reflected negatively on costs. While it is expected that the electrodes will give the resistance spot welding form in accordance with the specification; the weld nugget diameter measurements are different from the expected values due to wear and the electrode dressing process is applied to solve this problem. In this study, the automation of this process was carried out by means of the SmartblockTM and the effects of dressing frequency, welding current and time on the final nugget diameter properties of robot spot welds were studied using the "SmartblockTM" control algorithm. As 70 spot welds were found as the most suitable electrode dressing frequency, 100 ms welding time and 8 kA welding current were the other optimum parameters for better spot welding.

Keywords

Spot welding, Electrode dressing, Taguchi methodology, Smartblock™

Project Number

ARGE-2022-027_2200850000

Robot Nokta Kaynaklarında SmartblockTM ile Elektrot Bileme Sıklığı, Kaynak Akımı ve Süresinin Taguchi Metodolojisi Kullanılarak Araştırılması

Abstract

Robot direnç nokta kaynaklarında elektrot aşınması ve efektif kullanımı iyi takip edilmesi gereken bir durumdur. Erkenden değiştirilen bir elektrot veya kullanım süresini aşan bir elektrodun getireceği fayda-zarar etkisi maliyetlere olumsuz olarak yansımaktadır. Elektrotların direnç nokta kaynağı boyutlarının şartnameye uygun oluşturması beklenirken aşınma ile beraber kaynak çekirdek boyut ölçümleri beklenen değerlerden farklı çıkmaktadır ve bu sorunun çözümü için elektrot bileme işlemi uygulanmaktadır. Bu çalışmada, prosesin otomatik hale getirilmesi SmartblockTM vasıtasıyla gerçekleştirilmiştir ve “SmartblockTM” kontrol algoritması kullanılarak bileme sıklığı, kaynak akımı ve süresinin robot nokta kaynaklarındaki en son çekirdek çap özelliklerine etkisi çalışılmıştır. En uygun elektrot bileme frekansı olarak 70 nokta kaynağı bulunurken, 100 ms kaynak süresi ve 8 kA kaynak akımı en iyi nokta kaynağı için diğer optimum parametreler olarak ortaya çıkmıştır.

Keywords

Nokta kaynağı, Elektrot bileme, Taguchi metodolojisi, Smartblock™

Supporting Institution

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

Project Number

ARGE-2022-027_2200850000

Thanks

Robot Nokta Kaynaklarında Smartblock™ ile Elektrot Bileme Sıklığı, Kaynak Akımı ve Süresinin Taguchi Metodolojisi Kullanılarak Araştırılması isimli makale çalışması için yapılan deneysel çalışmalar Şahinkul Makina ve Yedek Parça Sanayi Tic. A.Ş. tarafından desteklenmiştir.

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