Method for producing axisymmetric forgings by extrusion

By employing geometrically optimized blank and semi-finished product shapes with controlled center of mass positions, the method addresses tooling inefficiencies and equipment durability issues, achieving reduced metal consumption and improved forging processes.

RU2865059C1Active Publication Date: 2026-06-30PUBLICHNOE AKTSIONERNOE OBSHCHESTVO CHELIABINSKII KUZNECHNO-PRESSOVYI ZAVOD
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Patent Information

Authority / Receiving Office
RU · RU
Patent Type
Patents
Current Assignee / Owner
PUBLICHNOE AKTSIONERNOE OBSHCHESTVO CHELIABINSKII KUZNECHNO-PRESSOVYI ZAVOD
Filing Date
2025-08-13
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing methods for producing axisymmetric forgings face issues such as tooling jamming, instability of the initial blank, incomplete core filling, high metal consumption, and low durability of dies due to high contact stresses, leading to equipment damage and inefficiencies.

Method used

The method involves using specific geometric parameters for the initial blank and semi-finished products, including a barrel-shaped and conical section with controlled center of mass positions, minimizing metal contact with forming tools and optimizing the shaping process to reduce flash and improve tool durability.

Benefits of technology

This approach reduces metal consumption and increases the service life of forming equipment by minimizing tool wear and flash material, enhancing manufacturing efficiency and reducing material waste.

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Abstract

FIELD: metal forming.SUBSTANCE: invention which can be used in the production of axisymmetric forgings. The initial blank is upset to obtain an axisymmetric semi-finished product, and its preliminary and final shaping is carried out to obtain an axisymmetric forging. An initial blank the center of mass of which is located at a distance from the end is used. The settled semi-finished product has a barrel-shaped section and a conical-shaped section. The center of mass of the upset semi-finished product is located in a barrel-shaped area at a distance from the end. During preliminary shaping, a semi-finished product is obtained whose center of mass is located at a distance from the end. During final shaping, a forging is obtained with a center of mass located at a distance from the end and with a recess on the end surface.EFFECT: increasing the service life of the tooling and stamping equipment used and reducing the metal consumption rate by reducing the amount of material removed as dross.1 cl, 9 dwg
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