Machining method of extrusion die

Abstract

The invention discloses a machining method of an extrusion die. The machining method includes the following steps of S1, pre-treatment, S2, CNC rough milling including rough milling of an upper die and rough milling of a lower die, S3, heat treatment, S4, CNC finish milling including finish milling of the upper die and finish milling of the lower die, S5, surface grinding, S6, grinding adopting asand paper to grind the rough surface of a flow dividing hole to be smooth for reducing the action of the friction force between the flow dividing hole and an aluminum rod during extrusion of aluminumprofiles, S7, polishing, S8, tool grinding, S9, fine turning and S10, inspection and storage. According to the machining method, the production cycle of the extrusion die is greatly shortened, and the processing efficiency is improved.

Description

technical field

[0001] The invention relates to the technical field of mold production, in particular to an extrusion mold processing method. Background technique

[0002] With the rapid development of industry, the application of aluminum profiles is becoming wider and wider. The extrusion dies used in the processing of aluminum profiles are particularly important. In the existing extrusion die processing technology, the method of EDM is mainly used to process the end face of the die working belt and the empty knife. The working belt on the back, the rough working belt is also used as a positioning reference for subsequent processing; and then the pure copper tool electrode is processed by wire electric discharge cutting, the shape of the tool electrode is consistent with the groove of the extrusion die The shape of the groove is consistent; the tool electrode is used to perform electric discharge machining on the end surface of the workpiece, and the groove of the extrus...

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