1. Different applications
Milling cutters: Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces and cutting off workpieces on milling machines.
bit: its main function is to break rocks and form boreholes.
2. Different relief angles
Milling cutter: The side edge of the milling cutter has a relief angle, so it can cut sideways.
drill bit: the side edge of the drill bit has no relief angle, so it can't be cut laterally. It is used for axial drilling.
milling cutter
drill bit
3. Different classification
Milling cutter: sharp-toothed milling cutter, which grinds a narrow edge band on the flank to form the relief angle, has a long service life due to the reasonable cutting angle. There are three forms of tooth back of pointed tooth milling cutter: straight line, curved line and broken line. Straight tooth back is often used in fine tooth finishing milling cutter. Curved and broken tooth backs have good strength and can bear heavy cutting load, so they are often used in rough tooth milling cutters.
Shovel tooth milling cutter, the back of which is processed into the tooth back of Archimedes spiral by the method of shovel cutting (or shovel grinding), only needs to regrind the front after the milling cutter is blunt, which can keep the original tooth profile unchanged, and is used to manufacture various shaped milling cutters such as gear milling cutters.
drill bit: a diamond drill bit. A drilling tool with a cutting edge made of diamond material is a diamond drill bit. The main advantage of a diamond drill bit is that it can adapt to the stratum with high abrasiveness and hard geology, and its cutting performance is also excellent.
according to the structure of roller cone bit, roller cone can be divided into five parts: water hole, bearing, palm, roller cone and bit body. If it is a sealed jet roller bit, it usually includes the oil storage compensation system.
Baidu encyclopedia-milling cutter
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