FIELD: process engineering.
SUBSTANCE: invention relates to machine building, particularly, to surface straining of inner profiled surfaces. Mandrel comprises body fixed at static load cylinder rod, cone arranged at static load cylinder rod to reciprocate thereon driven by wave guide, and helical compression spring arranged at said rob between body and cone. Said intermittent pulse load cylinder reciprocates on said static load hydraulic cylinder rod. Waveguide and hammer are composed of sleeve reciprocating on static load cylinder rod. Mandrel comprises body fixed at static load cylinder rod, cone arranged at static load cylinder rod to reciprocate thereon driven by wave guide, and helical compression spring arranged at said rob between body and cone, and forming elements. Forming elements are composed of rolls, their width being equal to that of spline bore groove, and located in the body radial grooves for radial reciprocating rolling in motion of the cone relative to body.
EFFECT: expanded machining performances, increased depth of hardened layer and decreased roughness.
7 dwg, 1 ex
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Authors
Dates
2013-04-20—Published
2011-05-04—Filed