Reasonable selection of cemented carbide drill greatly improved drilling efficiency

In the past, it was believed that drilling must be carried out at lower feed rate and cutting speed , this view in the use of ordinary drill processing conditions were right . Now, with the emergence of carbide drill bits , drilling concept has also changed. In fact, by the correct selection of a suitable carbide drill bits , drilling can greatly improve productivity, reduce processing costs per hole .

The basic types to choose from carbide drill carbide drill is divided into four basic types : solid carbide drills , carbide indexable insert drills , welding and replaceable carbide carbide drills crown drill . Each drill has the advantage for a particular processing conditions .

Solid carbide drills Solid carbide drills are suitable for use in advanced machining center. Such drills manufactured using fine particles of carbide materials , in order to extend the service life , but also for the coating, blade -type geometry designed with self -centering drill bit , good chips in drilling most workpiece materials control and chip performance. The self-centering function and manufacturing precision drill strict quality control to ensure that the hole drilling , drilling without further follow-up after finishing .

Welded carbide drill welded carbide drill steel drill body in solid carbide weld a crown made ​​. This self-centering drill bit using geometric edge -type , small cutting force , for most workpiece materials can achieve good chip control , processing of the hole surface finish, dimensional accuracy and positioning accuracy are high, do not have to follow-up fine processing. The drill using the cooling method can be used in machining centers , CNC lathes or other high rigidity, high speed machine .


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