一种十字轴锻件锻造成型方法

By employing gradient heating, dynamic chamfering, alternating forging, and gradient controlled cooling, combined with real-time streamline correction and coordinated control of mold response parameters, the problems of disordered metal fibers, imbalance of four-way load-bearing capacity, and crack defects caused by quenching stress concentration in cross shaft forging were solved, achieving efficient material utilization and high-precision near-net-shape forming.

CN120169994BActive Publication Date: 2026-07-17SUZHOU DONGSHENG FORGING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU DONGSHENG FORGING
Filing Date
2025-05-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing cross shaft forging process suffers from disordered metal fiber orientation, imbalance of four-way load-bearing capacity, and crack defects caused by quenching stress concentration. It also presents significant challenges in controlling forming accuracy, resulting in low material utilization. Traditional methods are insufficient to achieve directional filling and homogenization of complex cavities.

Method used

By employing gradient heating, dynamic corner cutting, alternating forging, and gradient controlled cooling, combined with real-time streamline correction and coordinated control of mold response parameters, precise directional control of metal fiber flow is achieved. Through multi-directional alternating loading paths, the microstructure is optimized, and a self-compensation mechanism for forming accuracy is constructed.

Benefits of technology

It significantly improves material utilization and the four-dimensional load-bearing capacity of forgings, reduces the risk of early fatigue failure, ensures high-precision near-net-shape forming, and solves the anisotropy and dimensional deviation problems existing in traditional forging.

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Abstract

本发明涉及金属材料精密锻造成形技术领域,公开了一种十字轴锻件锻造成型方法,包括以下步骤:S1、坯料制备:将合金钢锭切割成设定重量的预制坯料;S2、梯度加热:对所述预制坯料实施分区段加热;S3、圆饼预制:将加热后的坯料模锻为圆饼状预制件;S4、动态切角:对所述圆饼状预制件的四向边缘进行角度可调的豁口切割;S5、交替锻造:依次对切割后的坯料实施垂直方向压缩与水平四向挤压的交替变形;S6、流线矫正:在锻造过程中基于实时检测的纤维走向施加局部补偿压力;S7、梯度控冷:对完成锻造的工件分阶段控制冷却速率至室温,完成锻件成型。本发明实现了金属纤维流向的精准定向控制,解决了锻件内部流线紊乱导致的材料利用率低下问题。
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