- The reason why the workpiece in CNC machining center is overcut.
Knife bounce, the tool is not strong enough and is too long or too small, causing the knife to bounce. The cutting allowance is uneven (for example: 0.5 on the side of the curved surface and 0.15 on the bottom). Improper cutting parameters (e.g. tolerance is too large, SF setting is too fast, etc.). Improper operation by CNC machining center operators, etc.
Improvement methods include making the tool larger or smaller, shorter or longer. Add the corner cleaning process and try to keep the margin as even as possible (the margin on the side and bottom should be consistent). Reasonably adjust the cutting parameters and round the corners with large margins. Using the machine tool’s SF function, CNC machining center operators can fine-tune the speed to achieve the best cutting results.
- Causes of problems in CNC machining center centration.
CNC machining center operators are inaccurate when operating manually. There are burrs around the mold. The center rod is magnetic. The four sides of the mold are not vertical.
Improvement methods include:
The manual operation of the CNC machining center should be carefully checked repeatedly, and the points should be at the same point and the same height as much as possible. Use a whetstone or a hammer to remove burrs around the mold, wipe it clean with a rag, and then confirm with your hands. Before centering the mold, demagnetize the centering rod (ceramic centering rod or other can be used). Calibrate the meter to check whether the four sides of the mold are vertical (large verticality errors require a review plan with the fitter).
- Reasons for problems with tool setting in CNC machining centers:
CNC machining center operators are inaccurate when operating manually. The tool is incorrectly clamped. The blade on the flying knife is wrong (the flying knife itself has certain errors). There is an error between the R knife, the flat knife and the flying knife.
Methods for improvement include: manual operation of the CNC machining center should be carefully checked repeatedly, and the tool should be set at the same point as much as possible. When the tool is clamped, blow it clean with an air gun or wipe it clean with a rag. When the blade on the flying knife needs to be measured on the tool bar and the bottom surface is smooth, a blade can be used. A separate tool setting program can avoid the error between the R knife, the flat knife and the flying knife.