Cast blade upset head blanking forming piece

Abstract

The invention belongs to precision forging, and provides a cast blade upset head blanking forming piece. The cast blade upset head blanking forming piece comprises a head part and a rod part. The front end of the head part is hemispheric, and the hemispheric front end of the head part is connected to a body of the head part in a transitional mode. The body of the head part is rectangular, the four corners of the rectangular body are rounded, and the rounding radius of one set of opposite corners is three to five times that of the other set of opposite corners. The body of the head part is backwards connected with the rod part through a turning connection area. The first cross section, connected with the body of the head part, of the turning connection area is oval, the long axis direction of the oval first cross section is consistent to the intake and exhaust edge of a blade, and the two ends of the long axis direction of the first cross beam reach the edge of the body of the head part. The second cross section, connected with the rod part, of the turning connection area is the same as the cross section of the rod part. The cross section of the turning connection area is gradually formed from the first cross section to the second cross section in a transitional mode from front to back. The area of the cross section of the rod part is equal to the area of the cross section of a pre-forging piece, and the rod part is longer than a blade body of the pre-forging piece.

Description

Technical field [0001] The invention belongs to precision forging technology and relates to a blank for forging blade upsetting. Background technique [0002] The upsetting process is currently one of the most important blank making processes for forging blades. This process can provide good blanks for pre-forging and final forging. [0003] The original head piece design head and shaft are conical, such as Figure 1a , Figure 1b As shown, the structure is simple, but forging and folding are easy to occur, a large amount of metal is gathered at the root, and raw materials are wasted, and the excess metal at the root may easily cause the die root transfer R to collapse, resulting in reduced die life. Summary of the invention [0004] The technical problem to be solved by the present invention is to provide a blank for forging blade heading, which not only solves the matching problem of die for forging process, obtains continuous and evenly distributed forging low-magnification stream...

AI Technical Summary

Problems solved by technology

[0003] The head and rod of the original heading design are conical, such as Figure 1a , Figure 1b As shown, the structure is simple, but it is prone to forging folds, and a large amount of metal gathers at the root, wasting raw materials, and the excess metal at the root may easily lead to the collapse of the transfer R at the root of the die, resulting in a reduction in the life of the die

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