METHOD OF INDUCTION SURFACING Russian patent published in 2015 - IPC B23K13/01 B23K101/04 

FIELD: process engineering.

SUBSTANCE: invention relates to induction surfacing of inner cylindrical surfaces in machine building. The article is arranged horizontally in retainer to joint rotation about article mirror axis. Spreader made of plate of heat-resistant graphite is arranged inside at article bottom to displace at surfacing radially relative to processed surface and with clearance between the latter and spreader smaller than the depth of built-up ply. Inductor is arranged in place. Retainer is revolved jointly with the article. Inductor is switched on to feed gradually the charge on surface being faced ahead of spreader in direction of article rotation. Charge is negated by inductor and surface being faced to joint melting at article rotation. Clearance between spreader and surface being faced gradually to preset depth facing ply. Note here that article is rotated at rpm selected to prevent fall of facing material and melt running-off while spreader is vibrated in direction of outs length.

EFFECT: cylindrical surface is turned to preset diameter.

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