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All Journal Journal of Applied Mechanical Technology (JAMET)
Azwar Amat, Mohammad
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Aerospace Engineering Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Teknik Pemrosesan Gambar Digital pada Hasil Pengelasan TIG Aluminum Paduan untuk Aplikasi Pengukuran Lebar Manik Las Azwar Amat, Mohammad; Luthfi, Muhammad
Journal of Applied Mechanical Technology Vol 2 No 1 (2023): Journal of Applied Mechanical Technology (JAMET)
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1045.545 KB) | DOI: 10.31884/jamet.v2i1.33

Abstract

ABSTRACT – The process of edge detection on aluminum 1100 material as a result of welding tungstent inert gas (TIG) has been successfully developed, difficulties in the edge detection process due to the large number of impurities in the form of vertical streaks on the weld metal can be overcome using several methods. Of the many methods used, double thresholding and hysterisis have the most important role and contribution in the process of cleaning impurities. The hough transform process requires setting the number of meeting lines to get two lines with rho = (229, 146) and theta = (1.582496, 1.553343). Method 4 is the shortest method of pre-processing until line detection, namely GS > Gauss > Sobel > DT > Hys > HT. In further development, the development of an interface that makes it easy to vary the threshold value and the number of meeting lines, then the pixel/mm or pixel/cm scale calibration process needs to be carried out.
Pengaruh Insulasi pada Resistance Spot Weld dengan Elektroda Titik Ganda Celah Paralel Satu Sisi Azwar Amat, Mohammad; Sifa, Agus; Dionisius, Felix; Endramawan, Tito; Apriyandi, D.D.; Rudiana
Journal of Applied Mechanical Technology Vol 3 No 1 (2024): Journal of Applied Mechanical Technology (JAMET)
Publisher : Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/journalofappliedmechanicaltechnology.v3i1.59

Abstract

Current leakage in parallel gap single-sided double spot welding tools occurs if the insulation to the mass-body, either from the work table or the drive system, can reduce the current concentration and result in double-sided welding being relatively difficult to carry out or the weld results being poor. Therefore in this research, an experiment was carried out to test the machine how big the effect of leakage current is on the quality of welded joints by comparing the strength of the joint between a system without insulation and a system using insulation using the independent sample t-test statistical method with a confidence level of 95%. The results of the study show that overall the max load for CT 3 to 10 is a mean difference between without and with insulation, although it is not very significant, this is because the shear test data from the group without insulation has quite a high deviation. High deviations also occur in the upper yield data, the strongest conclusion is that providing insulation (or preventing leakage current) provides a more consistent welding result as seen from the results of the shear test data. Only CT 3 has a significant impact on both max load and upper yield.
Co-Authors Apriyandi, D.D. Endramawan, Tito Felix Dionisius Muhammad Luthfi Rudiana Sifa, Agus