How large should the plug welding holes be, and what should the spacing between them be?
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As the title suggests, what are the standards for the size and spacing of plug weld holes? What size should plug weld holes be made in an 8mm thick steel plate? Is it a round hole? What’s the spacing?
What is the purpose of seam welding? For fixing purposes, round holes are sufficient; however, since it is used to withstand shear stress, it is better to use oblong holes
Oh, thank you. Then how big should the round hole be? How much spacing is needed? I found the following passage: “Regarding the size of the holes, the ‘Code for Welding of Building Steel Structures’ JGJ 81-2002 specifies that: 1. The minimum center distance between plug welds should be 4 times the diameter of the hole.” ； 2. The minimum diameter of the plug weld hole shall not be less than the thickness of the perforated plate plus 8 mm, and the maximum diameter shall be the minimum diameter plus 3 mm, or 2.25 times the thickness of the perforated component; the larger of these two values shall be adopted. ” I need to drill holes of φ18mm in my 8mm thick plate, and the spacing between these holes should be greater than 32mm? If my board is 500*600*8, is it not necessary to drill welding holes?