Hole machining drill bits
There are four basic types of drill bits: solid drills, carbide indexable insert drills, welded carbide drills and replaceable carbide crown drills. Each drill bit has benefits suited to specific machining conditions.
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Product Description
There are four basic types of drill bits: solid drills, carbide indexable insert drills, welded carbide drills and replaceable carbide crown drills. Each drill bit has benefits suited to specific machining conditions.
(1) Integral drill bit
(2) Carbide indexable insert drill bit (U drill)
Drills equipped with carbide indexable inserts can process a wide range of hole diameters, with a processing depth ranging from 2D to 5D (D is the hole diameter), and can be used in lathes and other rotary processing machine tools.
(3) Welded carbide drill bit
Welded carbide drill bits are made by smoothly welding a carbide crown on a steel drill body. This kind of drill adopts a self-centering geometric edge shape, which has low cutting force and can achieve good chip control on most workpiece materials. The machined holes have good surface finish, high dimensional accuracy and positioning accuracy, and there is no need to drill any more. For subsequent finishing. This drill adopts internal cooling system and can be used in machining centers , CNC lathes or other high-rigidity, high- speed machine tools.
(4) Replaceable carbide drill tip drill bit
Replaceable carbide tip drills are a new generation of drilling tools . It is composed of a steel drill body and a replaceable solid carbide tooth crown. Compared with welded carbide drill bits, its processing accuracy is about the same. However, because the tooth crown is replaceable, the processing cost can be reduced. , improve drilling productivity. This drill achieves precise hole size increments and is self-centering, resulting in high hole machining accuracy.
When considering the cost per hole machined, the total life of the drill bit should also be taken into account. Generally speaking, a solid carbide drill bit can only be reground 7 to 10 times, and a welded carbide drill bit can only be reground 3 to 4 times. A carbide crown drill bit can be replaced when processing steel materials. The steel drill body can replace the tooth crown at least 20 to 30 times.
Nanjing Jianchuanshi Industry and Trade Co., Ltd. specializes in CNC tool holders for more than ten years!
Many agent brands:
Sandvik; Kennametal; YG-1; WALTER; GESAC; YESTOOL; TT ; Zhengheyuan (SYIC) and other
advantageous channels: SCHUNK, HAIMER, Seco, ISCAR, DOMA, Nikken and many European and American products;
In addition: our company undertakes drill bits, drill tips, milling cutter mold modifications, and coatings , non-standard customization and program design, sales services such as fixtures, jigs, and measuring tools.
Excellent quality! Price guaranteed! Delivery time guaranteed! Welcome to come for consultation.
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Nanjing Arrow-Stone Industry Co. ,Ltd
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Address: No. 105, Building 8, District 8, Lingxin Market, Jiangning District, Nanjing