FIELD: process engineering.
SUBSTANCE: invention relates to machine building, namely to methods intended for producing worm wheel composite workpiece consisting of hub made from metal or comprising it, and outer part made from synthetic, preferably, thermosetting resin that envelopes said hub from outside. Tube of required sizes is produced by extrusion. Ring of a certain length is cut from said tube. Produced ring is fixed on said hub in exploiting the heat not consumed after first operation, that is, extrusion.
EFFECT: reduced inner strains in products, possibility to use wide variety of heatproof materials.
20 cl, 2 dwg, 4 ex
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