Patent ID: 9700944
Date: 2017-07-11
CPC Classifications: B23B,B23C,B23P,Y10T

Claim:
1. A tool head for use with a main body in a modular tool, the tool head having a central longitudinal axis about which the tool head rotates during operation, the tool head comprising: at least a first preform and a second preform, and a duct system for a cooling lubricant, wherein the first preform and the second preform are made from granular materials and are jointly compressed and sintered together to form an integral bond along a connecting zone, wherein the first preform comprises a cutter end disposed opposite the connecting zone, the cutter end being structured to engage a workpiece; wherein the second preform comprises a coupling end having a coupling structure disposed opposite the connecting zone, the coupling structure being structured to engage a complementary shaped structure of the main body for coupling the tool head to the main body in a releasable manner; wherein the connecting zone runs approximately perpendicular to the central longitudinal axis of the tool head and does not extend into the first preform at the central longitudinal axis; wherein the duct system comprises a straight duct portion in the second preform, and at least one distributor chamber that lies in the connecting zone between the first preform and second preform, wherein the straight duct portion leads into the at least one distributor chamber, and the at least one distributor chamber has a larger diameter than the straight duct portion.