A fast corner positioning method in the process of free forging billet

Abstract

The invention discloses a corner quick positioning method in a free forging blank manufacturing process. The method comprises the following steps that step 1, an annular blank subjected to chamberingis arranged vertically at first, and the highest portion of the blank is hammered once in the radial direction of the blank; step 2, the blank is rolled by 22.5 degrees along the outer circumference of the blank, and the highest portion of the blank is hammered once in the radial direction of the blank; step 3, the step 2 is repeatedly conducted for eight times in total; step 4, the blank is rolled by 30 degrees along the outer circumference of the blank, and the highest portion of the blank is hammered once in the radial direction of the blank; and step 5, the step 4 is repeatedly conducted for five times in total. Compared with the prior art, through the method, fixing points are not stamped during chambering, during drawing, a four-frame position is fixed by controlling the forging hammer stamping amount and the number of times, and the number of times of drawing feeding amount of each time of hammering, the problem that the surface of a forged part of a fan-shaped frame structure is folded due to stamping during forged part free forging is effectively solved, and the production efficiency is improved by about 20%; and a new technique process is provided for blank manufacturingof the forged part.

Description

technical field [0001] The invention belongs to the technical field of metallurgical system forging, and in particular relates to a method for quickly locating corners in the process of free forging blanks. Background technique [0002] The invention relates to a fan-shaped frame structure forging of a superalloy. When free forging blanks, the forging process is complicated, and it has gone through six processes of upsetting punching, hole expansion and embossing, elongation, angle buckle, shaping, and shape correction. The embossing process is to use the fixed point ring to set the position on the ring forging after the hole is expanded, and then put the welding rod on the positioning point, use the hammer to make a mark, and make 4 impressions. These marks are left on the surface of the forging, which is extremely The workload of grinding has been greatly increased, and when hammering in the elongation process, the forgings are prone to defects such as folding, resulting ...

AI Technical Summary

Problems solved by technology

The embossing process is to use the fixed point ring to set the position on the ring forging after the hole is expanded, and then put the welding rod on the positioning point, use the hammer to make a mark, and make 4 impressions. These marks are left on the surface of the forging, which is extremely The workload of grinding has been greatly increased, and when hammering in the elongation process, the forgings are prone to defects such as folding, resulting in low production efficiency and product quality of forgings

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