一种三态组织钛合金低功率激光增材制造方法及钛合金

By controlling the parameters of laser additive manufacturing and the laser quenching process, the transformation of micron-sized sheet microstructure to three-state microstructure is regulated, solving the problem of preparing titanium alloy components in low-power laser additive manufacturing. This enables the rapid and low-cost manufacturing of high-performance titanium alloy components, which is highly adaptable and avoids multiple heat treatments.

CN117483791BActive Publication Date: 2026-07-17CAPITAL AEROSPACE MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CAPITAL AEROSPACE MACHINERY
Filing Date
2023-10-31
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to obtain the special three-state microstructure of titanium alloys in low-power laser additive manufacturing, which restricts its application in the aerospace field and results in long manufacturing cycles, high costs, and low material utilization.

Method used

By controlling the parameters of laser additive manufacturing and the laser quenching process, the transformation of micron-sized sheet microstructure into three-state microstructure can be regulated, including laser power, scanning rate, spot diameter, overlap rate and powder feeding rate. With the aid of laser quenching treatment, high-performance titanium alloy components can be directly prepared.

Benefits of technology

It enables rapid and low-cost manufacturing of titanium alloy components, achieves excellent three-state microstructure and properties, improves material utilization, reduces manufacturing costs, has strong adaptability, and avoids multiple plastic deformations and heat treatments.

✦ Generated by Eureka AI based on patent content.

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Abstract

一种三态组织钛合金低功率激光增材制造方法及钛合金,涉及金属材料激光增材制造领域,包括S1:将钛合金粉末装入送粉器;S2:将基板固定在成形仓工作台上;S3:当成形仓内水氧含量低于80ppm后,以激光为热源将钛合金粉末熔化逐层沉积在基板上;待沉积完一层后,间隔设定时间,再进行下一层沉积;S4:连续沉积3~4层后,将激光送粉加工头移开,采用激光热源对原沉积层进行激光淬火;S5:重复步骤S3和S4,连续沉积制造出钛合金构件。激光同步扫描对特定获得的沉积层进行扫描,促使原有微米薄片组织向三态组织转变,进而制备出高性能钛合金构件。
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