core drilling bits Drill classification

The drill is used for drilling in solid materials with a through hole or blind hole, and can have a hole for the reaming tool.Core drills bit classification? Material, technology, standards and other classification Material: High-speed steel, cobalt high speed steel, carbide Process: grinding, milling,Drilling Tools Standard: DIN, ANSI, ASME, BSF, BSW, JB, ISO, GB / T, as well as other non-standard Some also divided according to surface treatment: TiN, TiAlN, nitriding, grilled blue.

core drilling bits Selection considerations carbide drill

Precision:
  Selection of carbide core drills bit, the first need to consider the size of the drilling accuracy. Generally, the smaller the aperture is processed, its tolerance is smaller. Therefore, the drill bit manufacturers usually be processed according to the nominal diameter of the hole size on theDrilling Tools classification. In the four types of carbide drill, solid carbide drill precision highest solid carbide tolerance range , so it is the best choice for machining precision holes; welded carbide drill or replaceable carbide drill crown tolerance range  hole machining is generally more suitable for accuracy requirements; installation carbide indexable insert drill is more suitable for heavy roughing, Although it is usually lower than the processing cost of several other bits, but the precision is relatively low, the tolerance range  , it is generally used for hole machining accuracy is not required , or by complete facelift boring blade finishing hole.

core drilling bits Drill Maintenance Installation and removal

Maintenance editor
⒈ when drilling steel, please ensure sufficient cooling capacity and the use of metal cutting fluid.
⒉ good core drill bits steel and rail gap can improve the accuracy of drilling and drill life
⒊ make sure smooth and clean magnetic base and workpiece.
⒋ drill sheets, to the workpiece reinforcement, Drilling Tools of large workpieces, please ensure secure workpiece.
⒌ drilling beginning and end of the feed rate should be reduced one-third.
⒍ large number of fine powder material when drilling, you can not use the coolant, and the use of compressed air to help chip.
⒎ please remove the drill body wrapped in iron, in order to ensure smooth chip evacuation.
Installation and removal
For a variety of installation and removal of the cutting wheels  rig. Convenient and reliable installation and removal.
⒈ drill installation
Drill slowly lifting the box, the four legs of the box corresponding drill holes into four turntable rig, according to the choice of the appropriate size drill core drill box, lifting the drill core box drill box into the body and then to groove and drill drill core box corresponding convex tip installed, will drill into the box drill, drill that card on the turntable heart. Then turn on the drill spin coupling nut drill pipe.
⒉ drill demolition
Lifting drill (with drill), will drill the box  requires connection with the turntable, slowly lifting the convex tip drill drill corresponding groove and drill core box, and the drill bit stuck in the drill box, turn receded drill , drill.

core drilling bits Drill classification

 Core drilling bits should be packed in a special packing boxes, to avoid vibration collide.When ⒉ use, remove the drill bit from packing boxes to be loaded into the spindle collet that header or automatic replacement drill tool library. Then run back into packing boxes. ⒊ core drill bits  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 CNC drilling using some CNC  core drilling bits  positioning ring retaining ring is not used, such as the use of its fixed ring during installationDepth positioning must be accurate, as it does not use retaining ring fitted to the  core drilling bits spindle elongation to adjust 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 drill bit to drill the table or unable to Drilling Tools through the circuit board caused scrapped. Drill slowly lifting the box, the four legs of the box corresponding drill holes into four turntable rig, according to the choice of the appropriate size drill core drill box, lifting the  core drilling bits core box drill box into the body and then to groove and drill drill core box corresponding convex tip installed, will drill into the box drill, drill that card on the turntable heart. Then turn on the drill spin coupling nut drill pipe.

core drilling bits What are the different types of drill bit used

Common core drills bits, probably divided into rolling twist, the whole ground drilling, divided into straight shank drills, taper shank drill, 1/2, etc. shank drill, drill-headed, single-head short Drilling Tools, center drill, hex shank drill , hammer drill, impact drill, etc., the material also can be roughly divided, 4241 #, 4341 #, 9341 #, 6542 #, M35, M42, alloys.