| 摘要 |
A degradation tool or assembly comprises an inverted conical face formed in a top end of a tool body, which top face tapers towards a central axis of the tool body. A base end of a carbide bolster is adapted to be brazed to the inverted conical top face. At least one protrusion is formed in the top face and is adapted to control a braze thickness between the top face of the tool body and the base end of the carbide bolster.
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