Pengaruh Kuat Arus dan Waktu Proses Spot Welding terhadap Kekuatan Tekan, Nugget dan Penetrasi Depth pada Plat Baja SPFC590 t1,2 dan Weld T-Nut M10

Tanjung, Alfarizzi Ardhi (2023) Pengaruh Kuat Arus dan Waktu Proses Spot Welding terhadap Kekuatan Tekan, Nugget dan Penetrasi Depth pada Plat Baja SPFC590 t1,2 dan Weld T-Nut M10. S1 thesis, Universitas Kristen Indonesia.

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Abstract

Penelitian pengaruh parameter kuat arus dan waktu pengelasan terhadap sifat mekanik pada material plat baja SPFC590 t1.2 dan Weld T-Nut M10 telah dilakukan. Metode dalam penelitian ini menggunakan metode desain eksperimen faktorial untuk memberikan formulasi layout pengujian, mengetahui kondisi optimal dari penyetingan parameter, dan mengetahui pengaruh performansi terhadap kuat tekan, nugget, dan kedalaman penetration spot welding. Hasil uji kuat tekan antara plat baja SPFC590 t1.2 dan Weld T-Nut M10 diperoleh angka paling besar 17.7 kN dan yang terkecil 15.4 kN dengan standar rekayasa nya 6.5 kN. Hasil uji pada nugget semakin lama lelehan terjadi semakin melebar pula pertumbuhan lelehan tersebut, dan setelah part di suhu ruangan zona lelehan tersebut akan menjadi nugget, untuk rata-rata hasil pengujian nugget adalah 5.6 mm dan sudah melewati hasil engineering standar. Sedangkan pada uji penetrasi hasil semakin lama waktu pengelasan semakin dalam pula kedalaman penetrasinya. Dan semakin besar kuat arusnya, diperoleh makin besar pula ukuran nugget nya. Kata kunci : Spot Welding, Kuat Arus, Waktu Pengelasan , kuat tekan, nugget. / Research on the effect of current strength and welding time on the mechanical properties of SPFC590 t1.2 and Weld T-Nut M10 steel plate materials has been carried out. The method in this study uses a factorial experimental desain method to provide test layout formulations, determine the optimal conditions of parameter settings, and determine the effect of performance on compressive strength, nuggets, and depth of penetration spot welding. The results of the compressive strength test between the SPFC590 t1.2 steel plate and Weld T-Nut M10 obtained the largest number of 17.7 kN and the smallest 15.4 kN with an engineering standar of 6.5 kN. Test results on nuggets the longer the melting occurs the wider the growth of the melt, and after the part is at room temperature the melting zone will become a nugget, for the average nugget test result is 5.6 mm and has passed the standar engineering results. Meanwhile, in the penetration test, the longer the welding time, the deeper the penetration depth. And the greater the current strength, the larger the nugget size is obtained. Key word : Spot Welding, Current, Welding Time, push test, nugget

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