1. Grooving on the surface. First select the border and then the face.

1. The principle of determining the cutting area of the tool is: within the selected boundary, the cutting surface of the tool within the selected boundary is the terminal surface, and the tool can drop from a high point to a low point. control. The selected surface is the entire surface, and the boundary can only be the area to be processed. No surface extends less than half of the tool diameter interval. Because the other surface has enough margin, it can be automatically protected; pull the control low line well, because There is no R gong to control the low line.

2. Tool selection: If the tool cannot be spiral or oblique, or cannot feed in the machining area, the area will be sealed, leaving the second rough machining.

3. Before the light knife, all areas that are not rough must be roughened. It is a small corner, which contains two-dimensional corners, three-dimensional corners and closed areas, otherwise the knife will be broken.

4. Two-level roughing method: Generally, three-dimensional grooving method is adopted. Flat-bottomed knives can be used to divide plane grooving and tool appearance. The tool center to the selected boundary does not damage other surfaces, usually do not roughen the boundary, as the case may be, the rapid two-way angle spiral feed, the angle of 1.5 degrees, the height of 1 degree, when excavating the shape as a bar, not a spiral tool, use Oblique feed, usually open filter, the cutting surface is spiral feed, the cutting surface is low, and the height of the cutting surface is not low. Small parts processing factory

5. Back knife: generally do not need to use a back knife, use a back knife, and use a relative back knife without a knife.

2. Plane slot: milling all kinds of slots, when milling part of the opening surface, the edge requirements, in principle, can feed (more than one diameter), the opening is more than half of the diameter, and the outer edge is closed.

3. Appearance: Choose the plane to be consistent with the appearance layering, the lifting knife and the appearance layering (flat appearance), the lifting point and the knife point are the same point, no need to lift the knife z plane is usually raised, but the relative height is not required; the goal of correction Usually the correct correction (by the way).

4. Mechanical correction tool position configuration: The correction number is 21. Imagine that the correct machine position is the mechanical correction machine position, the feed is vertical feed, and the tool position cannot be infinite by changing R.

5. Contour appearance: Closed surface, walk right on the open surface. If Novartis four circle is a closed surface, if Novartis four circle or circle should choose to hide four circles and height (arc) to determine the feed, CNC processing factory tells you, in In the case of rough opening, the machining interval diameter on any plane is less than one cut. If there is more than one path, a larger knife or two contour appearances are used. Precision machining of parts

6. Curved and streamlined: With good uniformity and agility, it is suitable for long-term use of light knife and can replace the appearance contour.

7. Radial tool path: There is a large hole in the appropriate position in the middle (less used).

8. Matters needing attention: bullet knife, the knife is not sharp, the knife is too long, and the workpiece is too deep to go up and down; the two sides of the sharp corner of the workpiece should be divided into two cuts, and the edges of the smooth knife should be aligned and elongated (arc advance and retreat).