Tire mold and forming method for billet making of complex die forgings of thin plate type

Abstract

The invention belongs to the field of aviation product plastic forming and particularly relates to a moulding bed for sheet complex die forging blank making and a forming method. The moulding bed for aviation sheet complex die forging blank making is designed, and a method for achieving sheet complex die forging precision blank making on free forging equipment is provided. By the adoption of the structure of a mandrel, reinforcing plates and a handle, the moulding bed does not need to be fixed to the lower working tabletop of a press, the portability of the moulding bed is improved, and the moulding bed can be placed on a lower flat anvil of the press for blank making at any time. Meanwhile, the mandrel of the moulding bed is fixed through the two reinforcing plates, mounting and dismounting are easy, and replacement of different mandrels is convenient. Aiming at multiple sets of moulding beds used for complex sheet forging blank making, after the moulding bed is adopted, it is not needed to machine moulding beds with different cavities with the set as the unit, it is only needed to independently machine the mandrel, and the production cost is reduced. In the forging process, the previous multi-heating-time blank making effect of the multiple sets of moulding beds can be achieved only by rapidly replacing the mandrel in one heating time.

Description

technical field [0001] The invention belongs to the field of plastic forming of aviation products, and in particular relates to a tire mold and a forming method for making blanks of complex die forgings such as thin plates. Background technique [0002] Thin-plate structural parts are a typical component used in the aviation field, which mainly play the role of separation, support, guidance and positioning. However, the overall part thickness of thin-plate structural parts is small, the external dimension is large and irregular, and there are even raised parts such as reinforcing ribs locally, so the blank is usually formed by casting, but for some parts with strict mechanical properties, it is required to use Forged and formed. At present, the forging processes of thin plate structural parts mainly include free forging, ordinary die forging and isothermal forging. Among them, free forging is mainly used for rough forming of forgings. After forming, the shape of forgings i...

AI Technical Summary

Problems solved by technology

In the above two billet making methods, the volume and weight of the tire mold are relatively large, and the mold cannot be replaced during the billet making process, that is, the forming of a blank can only be completed with a set of tire molds in one heating cycle. Therefore, for More complex billets can only be made by increasing the number of forging fires and using multiple sets of tire molds successively. This method of billet making obviously increases the forging cost and production cycle

On the other hand, the multiple sets of tire molds used in forging blanks have the same shape and size, but the cavity is different. Therefore, each set of tire molds must be processed with the same size mold material for cavity processing, which greatly increases the labor cost. cost of mold material

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