FIELD: machine engineering, possibly surface hardening of steel and cast iron parts subjected to intensive wear.
SUBSTANCE: tool has body in the form of main and additional discs mounted on boss. Discs are made of material with low heat conductivity factor and they have working surface on their periphery. There are recesses in the form of radial grooves on working surface of main disc; additional disc has dents. Length of recess of main disc exceeds by 1.5 -2.5 times width of its working surface.
EFFECT: enhanced quality of working due to formation on surface of worked part structure of while layers with increased rigidity at using simple tool.
3 cl, 5 dwg, 1 ex
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