Invention Grant
US07878274B2 Steel tooth disk with hardfacing 有权
钢牙盘表面硬化

Steel tooth disk with hardfacing
Abstract:
An earth boring drill bit comprising a milled cutter having rows of teeth hardfacing guides on the cutter. Hardfacing is applied between adjacent teeth hardfacing guides to form a cutting element. The hardfacing may extend past the crest of the teeth hardfacing guides or end along the teeth hardfacing guides flanks.
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