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ROLLER CONES HAVING NON INTEGRAL CUTTING STRUCTURES, DRILL BITS INCLUDING SUCH CONES, AND METHODS OF FORMING SAME.
ROLLER CONES HAVING NON INTEGRAL CUTTING STRUCTURES, DRILL BITS INCLUDING SUCH CONES, AND METHODS OF FORMING SAME.
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机译:具有非整体切削结构的滚子锥,包括这种锥的钻头以及形成方法相同的方法。
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摘要
Methods of manufacturing roller cones for drill bits include providing both integral teeth and non-integral teeth on the roller cones. A layer of hardfacing may be applied to the integral teeth. Non-integral teeth may be formed on a body of a cone, or they may be separately formed from the body and attached thereto. In some embodiments, the non-integral teeth are formed by building-up the non-integral teeth from hardfacing material. Roller cones and earth-boring tools are formed using such methods.
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