Appellation: Solid carbide twist drill bits
Main Materials: Tungsten carbide
Service: Processing with supplied drawings or samples, customize grade.
OEM: OEM is available
Logo: GUBT or as customer request
Color: Primary or coating according to the customer requirement.
Technological process of production of our Solid carbide twist drill bits: powder process → formula according to the use requirements → wet grinding → mixing → smash → dry → sieving → add binder → dry again → get the mixture after sieving → pelletize → pressing → forming → sinter-hip → forming (blank) → blanks checking → finishing product machining → cleaning → inspection of the finished product → packaging → entering warehouse.
Solid carbide twist drill bits develops with the need of high-efficiency machining in automobile industry and machining the plastic reinforced fiberglass circuit board in IT industry, as the miniaturization of computers and mobile phones, the diameter of the Solid carbide twist drill bits will develop towards the direction of the small, now has 0.08mm diameter of the solid carbide twist drills.
Solid carbide twist drill bits is drilling tool with good toughness and high wear resistance. It has a long service life with good quality. But because of it is made of tungsten carbide materials, so it is more brittle compared with the HSS material. The Solid carbide twist drill bits is mainly used for machining iron casting, stainless steel and the material that difficult to machining.
|Solid carbide twist drill bits drawing and sizes range|
|d1 (bit diameter)||L3 (drilling depth)||Cooling way||Shank type||d2 (shank diameter)||L1 (overall length)||L2 (flute length)||L4 (handle length)|
|0.5 – 20 mm||3 – 8 mm||outer-cooling
or chamfer shank
|6 – 20 mm||50 – 153 mm||20 – 101 mm||36 – 50 mm|
|HRC||Use Material||Grain Size||Hardness(HRA)||Bending Strength||Performance & Application Recommended|
|HRC45||GU30||0.7||90°-91°||2500-2800||Good Wear resistance,suitable for alloy,cast iron, copper,common mould steel(A3 steel).|
|HRC50||k3||0.6||90°-91.5°||3800-4000||Suitable for aluminum cutting ,copper,processing alloy,cost iron|
|HRC55||YL10.2||0.6||>91.5°||4000-4300||Suitable for processing alloy,copper,harden mould steel. stainless steel.heat treat materials.|
|HRC60||Guhring||<0.6||>91.5°||4000-4300||Stainless steel, steel|
|HRC60||H10F Sandvik||0.4||94°||5000-6000||Good grain size,Fine carbide,high wear|