FIELD: welding processes, namely attachments for forming back side of welded seams, mainly at welding sheets parts of aluminum alloys.
SUBSTANCE: backing includes forming recess and holes for fixing backing in welding attachment. Cross grooves are formed in backing along axes of holes for fixing at opposite side of forming recess. Depth of grooves is equal to depth half of backing; width of grooves is equal to half of their depth. Cross grooves are arranged along the whole width of backing. Spacing between grooves is equal to doubled pitch of hole arrangement on backing. Thickness of backing is directly proportional to its length. It allows to improve fusion quality of single-side lengthwise seam due to lowered temperature of backing heating that may cause warping of part edges.
EFFECT: improved quality of welded seam.
8 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2379163C1 |
| SUBSTRATE | 0 |
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| SINGLE-SIDE WELDING APPARATUS WITH FORCED FORMING OF ANNULAR SEAMS | 1990 |
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| METHOD FOR FRICTION WELDING OF ALUMINIUM ALLOYS | 2006 |
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