The invention belongs to the technical field of difficult-to-process material cutting and processing, and relates to a micro-tooth design method capable of realizing alternative cutting of left and right cutting edges. The method can realize a processing way of alternative cutting of a right rotary cutting edge and a left rotary cutting edge on different sections of an effective cutting part of amulti-edge milling cutter, and guarantees continuous action that CFRP surface layer fibres bear axial force in different directions, so that the purpose of restraining occurrence of burrs of a high-speed milling carbon fibre composite material surface layer is realized. Micro teeth of a peripheral edge are designed, and structure parameters of a milling cutter are determined, so that a design method capable of realizing alternative cutting of the left and right cutting edges is guaranteed. The micro-tooth design method has very good universality and a high engineering application value, and can finally realize high-speed, stable and effective processing under great cutting dosage of carbon fibre composite materials.

Micro-tooth design method capable of realizing alternative cutting of left and right cutting edges

The invention discloses a wave-edge end mill comprising a mill body. An end edge front mill surface is arranged at the end portion of a mill head, auxiliary cutting edges are formed by intersection ofthe end edge front mill surface and an end edge rear mill surface, the edge shape of the auxiliary cutting edges is a sine curve, and peaks and valleys of the adjacent auxiliary cutting edges are staggered. The mill head is provided with a mill point part which is provided with a mill point edge, and a mill body chamfer is arranged at the end portion of the mill body and is 45 degrees. A specialmill clamp is used for machining the end edge rear mill surface into a wavy surface, so that the end edge rear mill surface and the end edge front mill surface intersect to form the wavy auxiliary cutting edges; the mill point strength is high, the speed of cutting off workpiece blank machining allowance is increased, and on the premise that the mill rigidity and strength are ensured, the cuttingprocess is stable, cutting is fast, vibration is low, chip discharging is smooth, and the metal removing rate is high; and the wave-edge end mill is more suitable for rough milling machining and especially suitable for milling and gas cutting of steel plates and other workpieces with rough surfaces, so that large-feeding cutting is achieved.

Wave-edge end mill

The invention discloses a milling cutter for band saw blade special-shaped bottom side machining, a machining device and a machining method. The milling cutter comprises a cylindrical milling cutter body. The milling cutter body is provided with a milling blade, and at least one groove blade is formed on the milling blade. The shape of the cross section of each groove blade is matched with the shape of the band saw blade special-shaped bottom side, and a chamfer or circular bead is arranged on the cross section of each groove blade. The band saw blade special-shaped bottom side machining device comprises a milling machine, a milling head and the milling cutter are arranged on the milling machine, and the milling cutter body is connected with the milling head. A drive wheel set used for driving the band saw blade to move in the X-axis forward direction of the milling machine, a Y-direction locating unit used for locating the band saw blade in the Y-axis direction of the milling machineand a tension wheel set used for providing tension force parallel to the X-axis direction of the milling machine for the band saw blade are arranged on the milling machine. A code G used for controlling the milling cutter to move on the XY plane of the milling machine and corresponding to the shape of the band saw blade special-shaped bottom side is arranged in a numerical control system of the milling machine. The milling cutter is located between the drive wheel set and the tension wheel set. The milling cutter is simple in structure, convenient to use, high in efficiency and low in cost.

Milling cutter for band saw blade special-shaped bottom side machining, machining device and machining method

The invention belongs to the technical field of difficult-to-machine material machining and provides a multi-edge micro-tooth milling cutter cutting edge damage inhibiting micro-tooth arrangement anddesign method. The method comprises axially splitting and expanding a three-dimensional milling cutter to form a two-dimensional milling cutter micro-tooth layout with a tangential-axial coordinate system, and then determining the structural parameters of the milling cutter to determine a design method that the upper end lower edges of micro-teeth are arranged in an overlapped mode; the edge overlapped mode of the micro-teeth can effectively reduce the cutting thickness of sharp corners and ensure excellent cutting performance of the micro-teeth under a long cutting stroke, and meanwhile, canensure relative uniformity of the cutting thickness of the micro-teeth, reduce tool vibration during high-speed milling of carbon fiber composite materials and accordingly avoid chipping at weak sharpcorners. Besides, based on the three-dimensional modelling software of SolidWorks, the accuracy of the multi-edge micro-tooth milling cutter cutting edge damage inhibiting micro-tooth arrangement anddesign method can be validated, and high-speed, stable and effective machining of the carbon fiber composite materials under high cutting capacity can be achieved.

Multi-edge micro-tooth milling cutter cutting edge damage inhibiting micro-tooth arrangement and design method

The invention discloses an efficient carbon fiber reinforced plastic hole making cutter and a dip angle hole making method, and belongs to the field of carbon fiber reinforced plastic machining. The cutter comprises a cutter bar, a milling supplementary cutting edge, a combined cutting part and a bottom cutting part which are connected in sequence. The dip angle hole making method mainly comprisesthe steps that parameters are calculated; the cutter is parallel to the axis of hole diameter and rotates downwards to carry out feeding in the axial direction, and layer-by-layer shunting machiningis carried out, so that the hole diameter error can finally keep at IT7 - IT8; if the hole diameter error does not meet IT8 - IT9, the dip angle between cutter and the axis of the hole diameter is adjusted, hole pre-milling is carried out, the hole is completed through zero empty trip milling supplementary, the axis of the cutter is adjusted to be parallel to the axis of the hole diameter and eccentric distance, and the allowance of the hole diameter is removed; and if the hole diameter error does not meet the IT7 - IT8, the dip angle between the cutter and the axis of the hole diameter is maintained, the hole pre-milling and the hole completing through milling supplementary are carried out, the cutter returns to an initial null point after the hole making is completed, and quality detection is carried out. According to the efficient carbon fiber reinforced plastic hole making cutter and the dip angle hole making method, the machining defects such as burrs, layering of the carbon fiberreinforced plastic can be avoided.

Efficient carbon fiber reinforced plastic hole making cutter and dip angle hole making method

The invention relates to an end mill with an end blade for quickly milling a carbon fiber composite, belongs to the field of cutting machining of materials difficult to be processed and relates to a special cutter for quickly milling a blind slot, a blind window and an irregularly shaped blind hole of the carbon fiber composite. A cutting blade is designed on an end part of a milling cutter of the end mill; end face scrap accommodating slots are formed on the end part; the end mill is composed of an end blade part, a changeable scrap-dividing slot helix angle peripheral blade part, a cutter handle part and a transition arc blade of the peripheral blade and the end blade; two parallel end face scrap accommodating slots are formed on the end blade part; end blade scrap accommodating slots are formed between the blades of the end blade; and the changeable scrap-dividing slot helix angle peripheral blade part has an asymmetrical spiral staggered structure and is equipped with a plurality of tiny teeth staggered by m right-hand spiral grooves and n left-hand spiral grooves. The changeable helical angle scrap-dividing slot is adopted by the end mill, so that the fluttering effect of the cutter while milling can be reduced, the scrap accommodating property while milling is promoted, the heat injury of the composite is reduced and the quick, stable and effective processing for the carbon fiber composite is promoted.

End mill with end blade for quickly milling carbon fiber composite

The present invention belongs to the technical field of milling tools in machining, and relates to a special end cutting edge attached cutter for carbon fiber reinforced polymer/plastic (CFRP) with designable micro-tooth configuration, comprising an end cutting edge, a peripheral cutting edge with variation inverse helical groove, a peripheral cutting edge with constant inverse helical groove and a shank. Two parallel V-shaped chip pockets are designed on the end cutting edge of the cutter in two cutting edge directions which are symmetrical around a cutter axis as a center. The structure may enhance chip removal performance during high-speed milling of impenetrable slots and impenetrable windows, reduce wear of the end cutting edge, conduct configuration design for micro-teeth of the peripheral cutting edge, reduce the cutting thickness of the micro-tooth cutting edges, and effectively solve the problem of damage of the micro-tooth edges. To reduce the vibration of the end cutting edge and a transition part of peripheral cutting edge during slot milling, a section of peripheral cutting edge with variation left-hand inverse helical flute angle is designed near the end cutting edge. The peripheral cutting edge points to the end cutting edge direction, and finally enhances the surface quality of window bottoms and slot bottoms and the service life of the cutter.

Micro-teeth arrangement designable end mill having tip blade for dedicated use with carbon fiber composite material

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End mill with end blade for quickly milling carbon fiber composite

Micro-teeth arrangement designable end mill having tip blade for dedicated use with carbon fiber composite material