Dishing the metal into a hollow or depression in the end of a log works but unless you have a lathe to quickly turn out a bowl shaped depression you must carve a hollow by wood chisel or simply repeated pounding.
Dishing sheet metal.
I will show you how to dish sheet metal.
Drilling tapping counterboring and countersinking are the usual operations done in sheet metals.
The method of cold dishing metal plate having the characteristics of boiler plate which consists in successively depressing 1 different portions of the plate an equal amount and in such manner as.
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While sinking is a relatively fast method it results in stretching and therefore thinning the metal risking failure of the metal if it is sunk too far.
Drilling is done in sheet metal only when piercing cannot deliver the accuracy required.
The maximum major axis diameter is 9 2750 mm with a maximum major minor axis ratio of 2 1.
Maximum depth of dish can be sheared flanged on the model 87 using the equipment that is standard on the machine.
Flat heads and dished heads 9 230 mm.
Reverse dished heads can be accommodated with additional tooling.