Dongguan CNC machining so as to obtain good machining quality. Constant cutting load. Through calculation to obtain a constant cutting layer area and data removal rate, many CAM software currently developed can maintain constant cutting conditions through the following measures. Keep the cutting load and tool wear rate balanced to improve tool life and machining quality. Prevent sudden change of tool feed direction.

Dongguan CNC machining prevents the tool from being buried in the workpiece. For example, when processing the mold cavity, the tool should be prevented from being inserted into the workpiece vertically, and the inclined cutting method should be used. The usual inclination angle is 20°30°) It is best to use the spiral cutting tool to reduce the tool load; when processing the mold core, try to The tool is first cut from the outside of the workpiece and then cut into the workpiece horizontally. When cutting in and cutting the workpiece, the cutting tool should adopt inclined or arc cutting in and out as much as possible to prevent vertical cutting in and out.

Dongguan CNC machining adopts climbing cutting to reduce cutting heat, reduce tool force and work hardening level, and improve machining quality. The main goal of semi-finishing mold semi-finishing is to make the contour of the workpiece flat and the surface finish machining allowance is uniform. This is particularly important for tool steel molds, because it will affect the change of the cutting layer area of ​​the tool and the change of the tool load during finishing. , Thereby affecting the stability of the cutting process and the surface quality of finishing.

The main goal of semi-finishing mold semi-finishing is to make the contour of the workpiece flat and the surface finish machining allowance is uniform. This is particularly important for tool steel molds, because it will affect the change of the cutting layer area of ​​the tool and the change of the tool load during finishing. , Thereby affecting the stability of the cutting process and the surface quality of finishing.

The rough machining is based on the volume model and the finish machining is based on the surface model. The previously developed CA D/CA M system has a discontinuous description of the geometry of the part. Because there is no intermediate information describing the machining model after rough machining and before finishing, rough machining The distribution of the remaining machining allowance and the maximum remaining machining allowance of the machining surface are unknown. Therefore, the semi-finishing strategy should be optimized to ensure that the workpiece appearance after semi-finishing has a uniform remaining machining allowance.