FIELD: electricity.
SUBSTANCE: tool contains a mandrel, coupling nuts fixed on it, a current-insulating sleeve and a splined hardening element, and is provided with a system for supplying process liquid to the machinable surfaces of the splined bushing consisting of a socket mounted on the mandrel and formed in the mandrel of the central channel and distributional channels for supplying process liquid to the contact area of the tool slot with the machinable surface of the bushing. In this case, the splined hardening element is fixed to the mandrel with a screw, which acts as a plug for the central channel of the mandrel.
EFFECT: improvement of heat removal from the contact zone and improvement of the hardening quality.
2 dwg
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