FIELD: process engineering.
SUBSTANCE: proposed method comprises producing groove finish of preset geometry on substrate surface pre-machined to required size, grooves being subjected to stepwise machining to small depth and width. Note here that groove cross-section is machined to final size in stepwise manner. To prepare substrate surface for thermal spraying, grooved structure in substrate surface is produced by cutting base groove in substrate surface to bottom width smaller than that of finished groove. Then, it is machined to groove cross-section with undercut with removal of chips or cutting. Proposed tool comprises bearing element with one rectangular plate secured thereto for forming and cutting. Plate lateral edge directed parallel with the substrate machined surface comprises at least three tooth comb-arranged one after the other.
EFFECT: perfected process.
26 cl, 10 dwg
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