CNC machining problems

In the process of production problems are also common things, because the friction between parts will certainly affect our work, so we must pay attention to methods in operation to avoid some unnecessary problems, so we will learn about the common problems of CNC machining?

CNC processing in Dongguan

1、 Workpiece over cutting:

reason:

1. The tool strength is not too long or too small, resulting in the tool bouncing.
2. Improper operator operation.
3. The cutting allowance is not uniform. (e.g. 0.5 for side of curved surface and 0.15 for bottom surface)
4. Improper cutting parameters (such as too large tolerance, too fast SF setting, etc.).

improve:

1. The principle of using knife: it can be big or small, short or not long.
2. Add corner clearance procedure, and the allowance should be uniform as far as possible (the allowance of side and bottom should be consistent).
3. Reasonable adjustment of cutting parameters, large margin corner rounding.
4. Using the SF function of the machine tool, the operator can adjust the speed to achieve the best cutting effect.

2、 The problem of the division is as follows:

reason:

1. Operator manual operation is not accurate.
2. There are burrs around the mold.
3. There is magnetism in the center rod.
4. The four sides of the mold are not vertical.

improve:

1. The manual operation should be checked carefully repeatedly, and the points should be at the same height as far as possible.
2. Deburring the periphery of the mould with an oilstone or file, wipe it with rags, and finally confirm it by hand.
3. Demagnetize the center bar before parting the mold (ceramic bar or others can be used).
4. Check whether the four sides of the mould are vertical by checking the table. (the scheme should be reviewed with the fitter if the perpendicularity error is large)