![]() On modern broadband mills the following measures are used to prevent damage to the surface of hot-rolled strips: reduce the distance between the axes of adjacent rollers Increase the accuracy installation of rollers in the horizontal plane apply the individual drive of each roller provide a smooth increase in the speed rotation of the rollers along the length of the withdrawing roller table increase the wear resistance of rollers. This also applies fully to the pulling and forming rollers of the coilers. In this case, the probability of scoring, scrapes and other mechanical damage increases otherwise severe wear on the surface of the rollers, improper installation and jamming. ![]() John Hackney is an IMAGINiT Technologies Mechanical Application Engineer with 25 years design expreinece in various manufacturing disciplines including converting and high speed pick and place machinery.Numerous studies have established that the damage to the lower surface of hot-rolled strips is mainly due to their friction against rollers of mill rollers. Sure does beat using a calculator and drawing board!įor more Inventor tips and tricks, check out IMAGINiT Manufacturing Solutions Blog. ![]() The next step is to use the Inventor sheet metal “Rip” command to add a gap to the duct.įinally, select the side of the duct you desire to be on the outside of the flat pattern, and pick the “Create Flat Pattern” tool. It this value is not exact, the creation of a flat pattern will fail. ![]() The next step is to set the sheet metal default to match the thickness used in the Thicken/Offset command. Please note that I have made the surface model invisible in the second screen shot. ![]() In my example, I am using 0.075″ (14 GA Mild Steel). Next you need to use the Inventor “Thicken/Offset” command to add the desired sheet meal thickness to the inside of the branch duct surface. ![]()
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