FIELD: working of metal.
SUBSTANCE: blanks of the basic layer and sheets of the top and bottom cladding layers are assembled to form shelves for welding due to the difference between the length and width of the blank and are welded over periphery. The sheet of the top cladding layer is less than the blank of the basic layer in length and width by two width of the shelf. The sheet of the bottom cladding layer is grater in length and width by the two shelf width. The size of the shelf is determined from a formula depending on the thickness of the sheet of the cladding layer. The stack is welded with the use of several welding burners over periphery under pressure of the bearing and pressing roller on the sheets of the cladding layer.
EFFECT: enhanced strength of welding.
13 cl, 5 dwg
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