Face milling is the most basic processing content in milling, and it is widely used in actual production, such as machining of bosses and joint surfaces of automobile panel molds, engine boxes, etc. Today we want to discuss face milling with you, but we Let's not talk about complex formulas, but what are the characteristics of face milling? What should a CNC milling machine pay attention to in-plane milling?

What are the characteristics of face milling?

Face milling is generally two milling methods, namely circumferential milling and face milling. The most commonly used milling method among these two milling methods is face milling. Today we will talk about the characteristics of face milling.

• During face milling, the axis must be perpendicular to the surface of the workpiece. The spindle axis of the milling machine will directly affect the flatness of the workpiece.
• The clamping performance of the face milling cutter shank during end face milling is good, the vibration amplitude is not large, and it is relatively stable.
• During face milling, the main cutting edge and the secondary cutting edge of the cutter teeth work at the same time so that the surface quality of the machined workpiece is better. Among them, the main cutting edge is responsible for cutting, and the secondary cutting edge plays the role of trimming.
• Face milling can use alloy inserts with good quality and precision to improve efficiency and quality.

Application of face milling

Plane milling is a 2.5-axis processing method. It produces XY two-axis linkage in the horizontal direction during the processing process, and the Z-axis direction only performs a separate action when entering the next layer after finishing one layer of processing. Learning more in the 469672740 group will help you

Face milling can only process geometry perpendicular to the tool axis, so the tool path of face milling machined parts with straight walls perpendicular to the bottom surface. The plane boundary established by face milling defines the cutting area of the part geometry and cuts to the specified base plane. In addition to different depths, the shape of each layer of toolpath is strictly the same as that of the previous or next cutting layer, and plane milling can only process workpieces with straight walls and flat bottoms.

What should a CNC milling machine pay attention to in-plane milling?

The radial ring of the cylindrical milling cutter runs out

The radial runout of the CNC milling cutter will cause an uneven depth of cut and ripples on the machined surface, which directly leads to an increase in surface roughness. Therefore, it is necessary to control the radial runout of the milling cutter of the milling machine. The radial circular runout of ordinary CNC milling cutters should not exceed 0.03mm, which can be checked with a dial indicator.

Prevent deep gnawing on the milling plane of the CNC milling machine.

The deep gnawing mechanism in the milling plane of the CNC milling machine will seriously affect the quality of the machined surface.

The same point of face milling and pocket milling

Both face milling and pocket milling operations are tool positions created on the horizontal cutting layer to remove material allowances from the workpiece, and there are many similarities between the two.

• The tool axes of both are perpendicular to the plane of the cutting layer, and the generated tool paths are cut by layers, and the next layer is cut after the cutting of one layer is completed.

• The cutting methods used in the tool path are the same, including area cutting and contour milling.

• Most of the optional parameters are the same: such as cutting parameters, non-cutting movement, angle control, feed and speed, and machine tool control in tool path settings.

Conclusion

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