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What are the types of drill bits commonly used in CNC machining centers?
Release Time:
Jul 28,2024
Drill bits are generally divided into high-speed steel (HSS) and hard alloy (CARBIDE) according to the materials we commonly use. If the spindle accuracy of the machine tool is good and the power is high, alloy drills can be used to improve processing efficiency. If cost is considered, high-speed steel is more cost-effective, but the efficiency is relatively low. Compared to high-speed steel drill bits, alloy drills have an efficiency improvement of 1.5-3 times. The advantages of alloy drills are high hardness, wear resistance, and high temperature resistance. Disadvantages: Hard and brittle, prone to breakage if used improperly.
1. Drill bits are generally divided into high-speed steel (HSS) and hard alloy (CARBIDE) according to the materials we commonly use. If the spindle accuracy of the machine tool is good and the power is high, alloy drills can be used to improve processing efficiency. If cost is considered, high-speed steel is more cost-effective, but the efficiency is relatively low. Compared to high-speed steel drill bits, alloy drills have an efficiency improvement of 1.5-3 times. The advantages of alloy drills are high hardness, wear resistance, and high temperature resistance. Disadvantages: Hard and brittle, prone to breakage if used improperly.
2. Drill bits are generally divided into ordinary drills, shallow hole drills, deep hole drills, centering drills, etc. according to their usage. Ordinary drills, needless to say, are used to process ordinary holes. Generally speaking, when using high-speed steel drill bits to drill 12 holes, the size may be about 10-20 threads larger. When using alloy drills, the size may also be slightly larger, but generally very small. Of course, this is only possible when the spindle accuracy of the machine tool is good. If the longitudinal runout of the machine tool is not good, any drill bit used will result in a larger hole.
Shallow hole drill: When used on machining centers, reversible shallow hole drills are generally used, which use alloy blade drill bits. The use of this type of drill bit generally requires the machine spindle to have an internal cooling device, otherwise it will reduce machining efficiency.
Deep hole drill: As the name suggests, it is a drill bit used to machine deep holes, with a relatively large diameter and length. Generally, it has two guiding edges on the side edge.
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Ruilif Tools (Qingdao) Co., Ltd was established in 2011 and is a professional enterprise specializing in the production of hole machining tools.
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