Patent ID: 6471449
Filing Date: 2002-10-29
Classification: B23B,B23Q,Y10T

Abstract:
A throw-away tip with an abrasion sensor, comprising:a generally planar base having a rake face defined by one of opposite surfaces thereof, a seat face defined by the other surface thereof opposite from the rake face, and a flank defined by a side face thereof intersecting the rake face and the seat face; a cutting ridge defined by an intersection between the rake face and the flank; a sensor line of a conductive film provided along the cutting ridge on the flank in an electrically insulative relation with respect to the base; a pair of contact regions provided on the seat face in an electrically insulative relation with respect to the base, the contact regions being electrically connectable to a predetermined circuit; and a pair of connection lines provided on the base in an electrically insulative relation with respect to the base and respectively connecting the pair of contact regions to opposite ends of the sensor line, one of the pair of connection lines including a return line spaced a predetermined distance from the sensor line in a parallel relation to the sensor line.