How to choose the right woodworking machine milling cutter

1. Determine the main technical parameters of the milling cutter:
        Main parameters of woodworking milling cutter: tool outer diameter, machining thickness, central aperture Other technical parameters: number of teeth, direction of rotation, speed of rotation, feed rate, clamping method, tooth material.

2. Select the structure of the milling cutter
        According to the nature and requirements of the cutting object, the overall milling cutter, the welding integral milling cutter, the assembly milling cutter and the combined milling cutter are selected from the technical and economic aspects.

3. Selection of milling cutter rotation direction
        The direction of rotation of the milling cutter is determined according to the direction of rotation of the machining spindle and the relative position of the cutter shaft and the feed workpiece. Whether it is an integral milling cutter or an assembly milling cutter, the inclination of the cutting edge relative to the radius of the milling cutter determines the rotation of the milling cutter. direction.

4. Selection of milling cutter cutting amount
        The cutting amount of the milling cutter includes the cutting speed of the milling cutter, the feed rate of the workpiece and the milling depth. The cutting speed of the milling cutter depends on the milling cutter speed and the radius of the milling cutter. The feed rate of the workpiece depends on the quality of the machined surface. The surface roughness of the workpiece to be cut depends largely on the feed per tooth of the milling cutter during the cutting process. The feed per tooth is too large, the machining surface is too rough, the feed per tooth is too small, and the machined surface will burn. The focus phenomenon, so the feed per tooth of the milling cutter must be appropriate.

5. Stability of milling cutter operation
        The stability of the milling cutter is the basis for the machining accuracy and the quality of the machined surface. This includes two aspects: First, the milling cutter is vibrated by external force during cutting; second, the milling cutter is deformed by external force.

6. Safety of milling cutters The safety of milling cutters includes milling cutter speed limit chip thickness limit, profile cutter height limit and assembly cutter blade thickness and extension limit.

        Wood cutting is characterized by high-speed cutting. The turning speed of the milling cutter is more than 3000 rpm. High-speed cutting provides high productivity and smooth surface quality for wood cutting. At the same time, it also brings a series of safety problems. Therefore, when the spindle speed of the milling machine reaches 9000 rpm, the assembly milling cutter should be prohibited except for the shank milling cutter with a tool smaller than 16 mm. Conduct a rigorous inspection of the flaw. Chip thickness limitation is a necessary measure to ensure that the milling cutter feeds too much and causes a serious overload of the milling cutter.
   
   For the forming cutter, the contour contour height value is closely related to the milling cutter clamping method, the cutting workpiece thickness, and the diameter of the milling cutter. After the thickness of the machined workpiece, the diameter of the milling cutter and the central aperture are determined, the height of the cutter profile reflects the strength and stiffness of the milling cutter itself and the ability to withstand the cutting resistance. Therefore, the height of the profile must be limited to ensure the safety of the cutter. The design of the insert milling cutter body must take into account the clamping problem of the insert. Whether it is a cylindrical cutter body or a disc-shaped cutter body, the insert clamping form must ensure that a sufficient clamping force can be provided to resist the centrifugal force of the swing. .