How to mill good drill?(2)
4.Drill cutting edge need to swing up and down, the tail can not warped. This is a standard drill grinding operation, the main cutting edge need to swing up and down on the wheel, that is to say [Read More]
drill machine
Proper use of carbide drills,cermet drills
►Because Carbide drills quite valuable, the proper use of the drill so the proper use of cermet drill is moist important, and is the responsibility of each practitioner’s responsibility. Proper use of carbide drills, cermet drills,tic cermet drills [Read More]
the structure of the high speed twist drill bit
2.1 spiral groove: For discharging chips and set its size, you should make the chips can be discharged smoothly, and it shall be provided with a helix angle. Its groove helix angle should vary with the type of [Read More]
The drill bit types and characteristics
►The drill bit types and characteristics 1) Species 1.1 high-speed steel drill bit (ordinary drill) The main system uses high-speed steel W, Mo-based material 1.2, (alloy drill) Tungsten titanium-based (YG), tungsten, titanium cobalt (YT) material. Physical and mechanical [Read More]
The operation and of taper shank twist drill
►Changsha langfeng introduce the operation and of taper shank twist drill (1). Determining the feed rate: Feed rate is generally depend on people&rsquo s experience, the value is general 0.08-0.12mm / rotation or 0.6-1.0mm / sec, feed speed is [Read More]
Features of twist drill and its influence on cutting
(1) The diameter of high-speed-steel twist drill twist drill can be influenced by the aperture, spiral grooves make it be more detailed core drilling, drill rigidity is lower. There are only two edge band guidelines, hole&rsquo s axis are easily [Read More]
The inner cone grinding twist drill test analysis
1 Conclusion: The principle of the right twist drill cone method grinding, grinding process method and parameters adjustment Reasonable and feasible plan, laid the foundation for a wide range of applications within the Twist Drill Sharpening Method. [Read More]