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Methods of forming earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials
Methods of forming earth-boring rotary drill bits including bit bodies having boron carbide particles in aluminum or aluminum-based alloy matrix materials
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机译:形成包括在铝或铝基合金基体材料中具有碳化硼颗粒的钻头体的掘土旋转钻头的方法
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摘要
Methods of manufacturing rotary drill bits for drilling subterranean formations include forming a plurality of boron carbide particles into a body having a shape corresponding to at least a portion of a bit body of a rotary drill bit, infiltrating the plurality of boron carbide particles with a molten aluminum or aluminum-based material, and cooling the molten aluminum or aluminum-based material to form a solid matrix material surrounding the boron carbide particles. In additional methods, a green powder component is provided that includes a plurality of particles each comprising boron carbide and a plurality of particles each comprising aluminum or an aluminum-based alloy material. The green powder component is at least partially sintered to provide a bit body, and a shank is attached to the bit body.
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