FIELD: metallurgy.
SUBSTANCE: two top and bottom rollers 1, 2 are arranged with their axes 17, 18 inclined in horizontal plane in opposite directions relative to straight line Y perpendicular to welding line X set for overlapping parts L of two metal plates 5, 6. Mash seam welding is carried out with hard driving of rollers 1, 2 by motors 61, 62. Metal plates 5, 6 are jointed together so that weld nugget N does not depart from joint interface. Axes 17, 18 of rollers 1, 2 are inclined in horizontal plane in direction of metal plate path with which rollers 1, 2 get in contact first.
EFFECT: ruled out spatter in welding.
10 cl, 26 dwg
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