FIELD: process engineering.
SUBSTANCE: invention relates to machine building, particularly, to grate-type devices and can be used for production of garden furniture, fences, grates, etc, from shaped steel pipes by various processes. Proposed article comprises rectangular vertical and horizontal elements and curved elements arranged between the former. Said elements intersect in preset order. Said elements are made of shaped pipe, preferably, of rectangular cross-section. Said elements are interconnected, preferably, over the entire contact surface to make a flat/spatial geometrical figure with required consumer qualities. At least one structural element, preferably, their larger portion, is made at least of two decorative stiffness ribs arranged, preferably, at its opposite sides. At one point of intersection of said elements grooves are made, preferably, at all points to be aligned to make lock joints. Points of said joints are, preferably, welded together. Width of every grooves of said joint equals the width of mating structural element fitted in said groove. Grove depth equals, preferably, the height of mating structural element fitted in said groove, preferably, half its height.
EFFECT: perfected method.
28 cl, 12 dwg
