FIELD: technological processes.
SUBSTANCE: invention relates to mechanical processing by pressure – rotational extrusion, in particular to the manufacture of hollow articles. Areas of the shell and frames to be welded are flat. Welding is carried out on the perimeters of the mentioned areas to produce a blank. Then carry out its deformation with intentional thinning of the wall.
EFFECT: product quality is improved by eliminating the pre-shaping of the shell and frames.
8 cl, 6 dwg
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