Processing stability of drill bits

In addition to considering drill biting accuracy requirements, the need to consider the stability of the machine tool when selecting Non-core drill bit. Machine stability is essential for safe life and precision drill bit bit, and therefore need to carefully examine the machine spindle, fixture and accessory working condition. Also, consider the stability of the drill bit itself. Solid carbide drill bits best rigidity and therefore can achieve high precision. The poor structural stability carbide indexable insert masonry drill bit, and prone to deflection. Welded carbide drill bits and replaceable carbide drill bit crown is composed by two symmetrical self-centering cutting edge geometry of edge, which has a high stability of the cutting edge of design when it does not need to cut into the workpiece reduce the feed rate, and only when the drill bit bit inclined mounting surface and cut into a certain inclination exception, this time recommended drill bit, drill bit when the feed rate is reduced from 30% to 50%. Because these drill bit steel sds plus hammer drill bits body can produce small deformation, and therefore well suited for lathe; but due to the large brittle solid carbide drill bits, when used in lathe easier to break, especially when the poor condition of the drill bit centering when even more so.

The use of carbide drill bits

⒈ carbide drill bits for metal should be installed in a special packing boxes, to avoid vibration collide.

2.When use, from packing boxes should immediately remove the carbide drill bits spindle collet mounted to replace the carbide drill bits in advance or automatic tool library. Then run back into the packing box.

⒊ drill diameter measurement tools to use microscopes and other non-contact measurement equipment, to avoid the cutting edge in contact with the mechanical gauges were bruised.

⒋ some carbide Non-core drill bit using the positioning ring some retaining ring is not used, such as the use of its fixed ring during installation
Depth positioning must be accurate, as it does not use the positioning ring attached to the drill spindle elongation to adjust the consistency, multi-spindle drilling machine to pay attention to this point, to make the drilling depth of each spindle to be consistent. If it is not possible to make the carbide drill bits to masonry drill bit the table can not be drilled or cause board scrapped.