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When the die is machined, the depth of the Z-direction is large, and the upper and the upper part are machined with different depths of the lower tool and the clamping length of the tool.


CNC machining, the use of milling, grinding and other general-purpose equipment to the first 270mmX150mmX300mm standard rough, the requirements to ensure that the parallelism and the surrounding surface between the perpendicularity. Taking into account the special before and after die blank, in order to save materials and reduce the processing volume, according to the drawing of the mold parting line, the blank line cutting, processing of rough.


After wire cutting, drill four holes in the bottom of the part and tapping the thread M12. Fix the clamp M12 in the clamping fixture plate with the hole array and then fix the clamping fixture plate on the worktable of CNC machine tool For processing. In the front mold, since the two main faces of the front mold cavity bottom intersect at a sharp angle, the minimum fillet angle between the other faces and the face is only 1.0mm, which can not be directly machined, and must be designed and processed.


The front-mold surface copper decomposition diagram for the design of the former mold copper public 3D diagram. Copper and the former is convex and concave relative to the external surface is convex state, suitable for programming, the top and the surrounding surface of the combination of parts of the copper is the difficulty of public processing. Forming 52 radius R2.26mm horn hole, the cavity structure, directly in the former model cavity on the processing of holes in the core of the EDM for processing. Also, in the pre-processing mode, the EDM must be processed. Using the front die after the break through the mold structure, using the overall front mold. But because the hole distance is very small, can not be directly processed, must not be rough for this part.


When these holes are machined, the drilling process must be arranged before the surface is machined because of the easy deflection of the surface at the top of the copper joint. These holes were machined with a reasonable knife path process. Before the mold processing, the mold has been parting surface and other parts of the surface finishing, 52 holes, if the finished surface drilling and then drilling the number of holes more, to use small-diameter tools, transport should be around the copper public The surface of the surface extends down to a certain depth, the top of the copper and the surrounding surface of the curvature of the change is different, in order to avoid electrical processing, hurt this site, to be refined copper surface, to separate processing.