Railroad tracks milling method and apparatus

Gear cutting – milling – or planing – Milling – Process

Patent

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Details

51 73R, 409199, B23C 302

Patent

active

047325151

ABSTRACT:
For chip-removing machining of the contact surfaces of rails 1, a stationary system is used which to attain high machining output as well as good surface quality uses a rotating, internally toothed milling ring 2, the flight circle of which generates the normally elliptical contact surface profile of the rail 1, in a position inclined with respect to the longitudinal axis of the rail. To avoid reproducing the ridged defects 18 of the contact surface, at least one conical supporting roller 17 is used in the machining region, its elliptical contact arc being designed with a substantially longer radius of curvature than the amplitude length of the ridges.

REFERENCES:
patent: 3842713 (1974-10-01), Hamilton
patent: 4326323 (1982-04-01), Kralowetz et al.
patent: 4583893 (1986-04-01), Line 409138

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