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1342results about "Thread cutting tools" patented technology

Casting of tungsten carbide matrix bit heads and heating bit head portions with microwave radiation

A method of making a drill bit having the following steps: placing matrix material in a bit body mold; placing a metal blank in the bit body mold; placing a binder material in the bit body mold with the binder material proximate the matrix material and the metal blank; and exposing hinder material to microwave radiation, whereby hinder material and other constituents is heated to a selected temperature to allow hinder material to melt and to infiltrate matrix material. A method of heating selected portions of a drill bit comprising: placing the drill bit in an insulative oven having a wave guide of microwave radiation from a microwave generator; positioning a portion of the drill bit to be heated proximate the wave guide; and exposing the portion of the drill bit to be heated to microwave radiation, wherein the portion of the drill bit is heated without overheating remaining portions of the drill bit.
Owner:HALLIBURTON ENERGY SERVICES INC

Collet collar stop for a drill bit

A stop for a drill bit having a shaft, the stop having a first member which includes a collet. The collet is configured to receive the shaft of the drill bit and is positionable along the shaft of the drill bit. The stop also has a second member which includes a clamp, for clamping the first member in a desired position along the shaft of the drill bit by securing the collet in a desired position along the shaft of the drill bit. The stop further has an abutment surface on one of the first and second members, for limiting the depth of penetration of the drill bit into an object, the abutment surface being disposed in a fixed position along the shaft of the drill bit by the clamping of the first and second members.
Owner:GREENBERG SURGICAL TECH

T00l for rotary cutting machining

A tool for rotary cutting machining includes a tool body and a replaceable cutting head detachably attachable to the tool body. At its front end, the tool body is provide with two coupling legs projecting in an axial direction. The respective coupling leg is provided with a stop surface for transferring torque from the tool body to the cutting head, which stop surface is designed for abutment against a corresponding stop surface of the cutting head. The respective coupling leg is provided with a shoulder protruding from the stop surface of the coupling leg. The cutting head is provided with two shoulders facing the front end of the cutting head and arranged on opposite sides of the center axis of the cutting head, which shoulders border on a respective one of said stop surfaces of the cutting head and are arranged to extend in under a respective one of said shoulders of the coupling legs of the tool body when the cutting head is attached to the tool body, so as to thereby present the cutting head from being displaced in axial direction away from the tool body. The invention also relates to a tool body and a cutting head included in such a tool.
Owner:SECO TOOLS AB
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