What kind of drills are commonly used in CNC machining centers?
Shallow hole drilling: in the processing center use, usually will use indexable shallow hole drilling, that is, with the alloy blade of the drill bit, use this kind of drill, generally require the machine spindle has internal cooling device, otherwise it will reduce processing efficiency.Deep hole drilling: as its name suggests, it is a drill bit used to process deep holes. Its diameter and length are relatively large. Generally, there are 2 guide blades on the side edge.Center drill: used to prevent hole change during drilling and to use when locating holes.Centering bit: a better positioning capability than an ordinary bit, usually used for centering holes or for machining thin plates. The difference between a drill and an ordinary drill is that the method of grinding is different.Drill: drilling reaming drill to drill, no vertex, generally between 0.5-2MM for reaming, reamer used with.
The bit is divided into common drilling, shallow hole drilling, deep hole drilling, centering drilling and so on. The ordinary drill needless to say, is used to process common hole, using high-speed steel drill general processing 12 hole drill out may be 10 wire -20 wire, alloy drill generally will be larger, but generally small, of course, is in the machine tool spindle accuracy under good circumstances, if the machine bed the vertical beating is not good, what the bit will appear the phenomenon of large hole.
The drill is usually divided into high speed steel (HSS) and hard alloy (CARBIDE) according to our common material. If the machine spindle accuracy, large power, can use the alloy drill to improve processing efficiency, if considering the cost of the words of high-speed steel is cost-effective, of course, relatively low efficiency, in terms of an alloy drill to increase 1.5-3 times than the efficiency of high-speed steel drill. The advantages of alloy drilling: high hardness, wear resistance, high temperature resistance. Disadvantages: hard and brittle, improper use, prone to fracture.
There are many kinds, mainly depending on what parts you use to process, and the machine tools are good enough. Can you use high efficiency drills?.
