Few People Know the Principle of End Milling Cutter!
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Few People Know the Principle of End Milling Cutter!
The main cutting edge of end milling cutter is on the cylinder, and the cutting edge on the end face is the auxiliary cutting edge. Do not work along the axis of the milling cutter feed movement. End milling cutter can be used for side machining, groove machining, surface machining and other processing fields. For various machining forms, the type of end milling cutter can be used is also very rich.
High speed steel integral end milling cutter was commonly used in the past, but now with the progress of coating technology and tool material technology, coated carbide integral end milling cutter and indexable end milling cutter gradually popular, widely used in mold processing, high hardness material processing and other fields.
- Name of each part of end milling cutter:
Helix Angle: the greater the helix Angle of the end milling cutter and the longer the contact line between the workpiece and the blade, the smaller the load imposed on the blade per unit length, thus helping to prolong the tool life. But on the other hand, with the increase of helix Angle, the axial component of cutting resistance also increases, making the tool easy to fall off from the handle, so, when processing with a large helix Angle tool, it requires a good rigidity of the handle. The 0° helical Angle is called straight edge, and its contact line is the shortest.
The choice of spiral Angle: stainless steel is difficult to cut materials with low thermal conductivity, the impact on the tip of the tool, the use of large spiral Angle of the end milling cutter to prolong the tool life. High hardness materials with the increase of hardness, cutting resistance increases, should choose large spiral Angle end milling cutter. For thin plate machining workpiece with low rigidity, it is advisable to use small spiral Angle end milling cutter.
The core of thick
Core thickness is an important factor to determine the rigidity and chip slot of end milling cutter. The core thickness of integral end milling cutter is generally 60% of the outer diameter. The core thickness increases, the cross-sectional area increases, and the rigidity increases, but the chip slot decreases, and the chip removal performance deteriorates. On the contrary, the core thickness decreases and the rigidity decreases, but the chip removal performance is enhanced.
- The screw direction of the chip carrier
- Common end milling cutter blade number:
- End milling cutter type and shape
Can be classified according to the edge, bottom edge, handle and neck, different types of shape and characteristics are different, and its application is not the same.
- Types, shapes and characteristics of peripherals
- The type, shape and characteristics of the bottom edge
- Types, shapes and characteristics of hilt and neck
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