Open die forging forming process of forging stocks of large bulkhead type forge pieces

Abstract

The invention provides an open die forging forming process of forging stocks of large bulkhead type forge pieces. The open die forging forming process of the forging stocks of the large bulkhead type forge pieces is capable of providing qualified forging stocks for precise die forgings of the large bulkhead type forge pieces to guarantee precise die forging process of the forge pieces. Bars or blanks are heated and kept warm before open die forging form of each forging, so that through heating of materials are guaranteed. The open die forging forming process of the forging stocks of the large bulkhead type forge pieces is characterized by including the following steps: (1) flattening the bars, (2) conducting material splitting according to forge piece structures, (3) reversely pressing necks, (4) bending to form, (5) conducting flattening and rod part form, and (6) bending and forming formed rod parts.

Description

technical field [0001] The invention relates to the field of forging blank forming technology of large structural forgings, in particular to a free forging forming technology of forging blanks of large frame-like forgings. Background technique [0002] Large bulkhead forgings are mainly used in aerospace and other fields. In the past, large-scale bulkhead forgings mostly used free forging to form rough blanks, and then directly machined them into shapes. Due to the large margin from rough blanks to formed parts, on the one hand, it resulted in a huge consumption of raw materials, on the other hand, the cost of machining was huge, and the processing Large quantities can easily lead to deformation of parts. In order to solve the above problems, precision die forgings are now used to replace the previous process, but preformed forging blanks are required before precision die forging, because the large bulkhead forgings have the characteristics of multiple ribs, thin thickness ...

AI Technical Summary

Problems solved by technology

In the past, large-scale bulkhead forgings mostly used free forging to form rough blanks, and then directly machined them into shapes. Due to the large margin from rough blanks to formed parts, on the one hand, it resulted in a huge consumption of raw materials, on the other hand, the cost of machining was huge, and the processing Large quantities can easily lead to deformation of parts

In order to solve the above problems, precision die forgings are now used to replace the previous process, but preformed forging blanks are required before precision die forging, because the large bulkhead forgings have the characteristics of multiple ribs, thin thickness and large cross-section changes, so its Free forging pre-forming of forging blanks is difficult and the forming efficiency is low, and the incomplete forming of forging blanks will also lead to the utilization rate of precision die forging materials for subsequent forgings

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