Diamond drill bit for high-precision deep hole machining and preparation method thereof

The invention provides a diamond drill bit for high-precision deep hole machining and a preparation method thereof. The diamond drill bit comprises a drill bit base body and an abrasive layer arranged on the outer surface of the drill bit base body, the abrasive layer is of a laminated structure com...

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Bibliographic Details
Main Authors KANG SONG, WANG PENG, XIONG CHANGXIN, WANG CHAN, NIE JUNQING
Format Patent
LanguageChinese
English
Published 09.04.2021
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PERFORMING OPERATIONS
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
TRANSPORTING
WORKING CEMENT, CLAY, OR STONE
WORKING STONE OR STONE-LIKE MATERIALS
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Summary:The invention provides a diamond drill bit for high-precision deep hole machining and a preparation method thereof. The diamond drill bit comprises a drill bit base body and an abrasive layer arranged on the outer surface of the drill bit base body, the abrasive layer is of a laminated structure composed of abrasive bonding layers-(diamond abrasive grain layer-abrasive bonding layers) n, n is larger than or equal to 2, and the granularity of the diamond abrasive particles of each diamond abrasive particle layer is the same; According to the diamond drill bit, nickel-cobalt alloy is adopted as an abrasive bonding layer, carborundum with specific granularity is selected and subjected to multiple times of sand feeding, the diamond drill bit of the laminated structure is formed, the thickness of each layer and the overlapping thickness of every two adjacent layers are controlled, and it is guaranteed that the abrasion resistance of the diamond drill bit is good, and diamond abrasive particles of every two adjacen
Bibliography:Application Number: CN202011512997