Use the guide hole as a guide sleeve: the depth of the guide hole is about 1.5-2 times the diameter, and the tolerance is +0.01-0.02mm larger than that of the gun drill directly.
The clamping of the workpiece must be safe and reliable, and coaxial with the center of the machine tool.
It's probably the first time you have heard the professional term of hard alloy gun drill, but it has always been in a place only one step away from us
Carbide gun drill, as the name implies, is a drill bit made of hard alloy. Because the length is slightly longer than other drill bits, it looks like a long gun.
Deep hole drilling is divided into blast hole drilling, single pipe drilling and jet suction drilling, so blast hole drilling is an integral part of deep hole drilling.
The choice of cutting amount is related to the cutting process and the stroke of the chip, as well as the material of the machined part, the accuracy requirements and the characteristics of the mac...
Gun drills are divided into integral type and welded type. Generally, the diameter of the gun drill is below φ30mm and adopts the integral structure.
At present, if the diameter is less than 30mm, the whole alloy gun drill bit and the drill pipe are welded, and the diameter is greater than 30mm, and the carbide blade welding method is adopted.
Deep hole drills are divided into welded deep hole drills and machine-added deep hole drills. Deep hole drills use internal chip removal.
In recent years, deep hole drilling has gradually been favored by some people. Its speed is even more breathtaking.
