Analisis Pengaruh Holding Time dan Arus Pengelasan Terhadap Sifat Mekanik Sambungan Las Titik Pada Stainless Steel

• Main Authors: Wibowo, Sigit Ariyanto (Author), , Muh Alfatih Hendrawan.,ST., MT (Author), , Supriyono., ST.,MT.,Ph.,D (Author)
• Format: Book
• Published: 2015.
• Subjects: Thesis; NonPeerReviewed
• Online Access: Connect to this object online
• Notes: https://eprints.ums.ac.id/35039/1/Naskah%20Publikasi.pdf; https://eprints.ums.ac.id/35039/2/Halaman%20Depan.pdf; https://eprints.ums.ac.id/35039/4/2.%20BAB%20I.pdf; https://eprints.ums.ac.id/35039/6/3.%20BAB%20II.pdf; https://eprints.ums.ac.id/35039/8/4.%20BAB%20III.pdf; https://eprints.ums.ac.id/35039/9/5.%20BAB%20IV.pdf; https://eprints.ums.ac.id/35039/10/6.%20BAB%20V.pdf; https://eprints.ums.ac.id/35039/12/7.%20Daftar%20Pustaka.pdf; https://eprints.ums.ac.id/35039/14/9.%20LAMPIRAN.pdf; https://eprints.ums.ac.id/35039/16/Surat%20Pernyataan%20Publikasi%20Ilmiah.pdf
• Keywords: TJ Mechanical engineering and machinery

Spot Welding is one of the resistance welding method most widely used in the automotive and manufacturing world. Spot Welding has several advantages among fast process, neat and simple. Current and holding time is an important parameter for determining the quality of the spot weld. This study aims to determine the effect of holding time parameter and variations in electrical current in the welding results point to the shear strength and hardness distribution. In this study, using a material austenitic stainless steel with a constant thickness of 0.8 mm. With the variation of holding time 1 s ; 3 s and 5 s. While the variation of the current parameter 5000 A, 6000 A and 7000 A. The experiment is testing the shear strength or Tensile Shear Load Bearing Capacity and micro vickers hardness test with testing standards AWS D8.9-97. The results showed that the variation of holding time has an increase in the strength of welded average 3.73% and current variation had an average increase of 13.44%. While the variation current and holding time on hardness testing has the same hardness distribution, weld nugget area has the highest hardness then HAZ and base metal. Where the highest hardness is 285.6 HVN0,2 in weld nugget with 7000 ampere welding current and a holding time of 5 seconds.