The roughing strategy needs to be based on the type of blank and the condition of the mold profile. If the blank is a forging or a steel piece, then rough machining is best performed by selecting a zone removal model to remove most of the excess of the blank and obtain a uniform blank allowance, which facilitates subsequent processing.
The main purpose of semi-finishing is to ensure a uniform balance during finishing. The most common method is to first calculate the boundary profile of the residual material (refer to the three-dimensional contour of the unprocessed area of the tool), and then use a smaller tool to process these three-dimensional contour areas. Without reworking the entire model.
3. Local finishing
Local finishing generally refers to clear angle machining. Clear angle machining should use multiple processing or series of tools from large to small processing methods.
In the finishing process, it is better to choose parallel finishing unless the height of the die surface changes greatly.