An additive repair method for clutch drive shaft platform based on laser cladding technology
By using laser cladding technology and Fe-5 iron-based powder, the problem of repairing the wear-prone clutch drive shaft platform was solved, achieving safe and reliable additive repair, reducing costs and improving wear resistance.
CN120325992BActive Publication Date: 2026-09-01成都国营锦江机器厂
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Patent Information
- Application Number
- CN202510661586.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2045-05-22
AI Technical Summary
Technical Problem
Existing technologies are insufficient to effectively repair clutch drive shaft platforms with excessive wear, leading to reduced transmission performance and impacting flight safety.
Method used
Laser cladding technology was used to preheat the clutch drive shaft with Fe-5 iron-based powder, followed by laser melting additive manufacturing and slow cooling after welding. Combining this with pressure calculations ensured the quality of the repair.
Benefits of technology
It enables the effective repair of worn platforms, restores transmission performance, meets usage requirements, reduces costs, and improves wear resistance.
✦ Generated by Eureka AI based on patent content.
Abstract
This invention discloses an additive repair method for a clutch drive shaft platform based on laser cladding technology, comprising: preheating the clutch drive shaft and Fe-5 iron-based powder before welding; using Fe-5 iron-based powder to perform laser melting additive manufacturing on the worn area of the clutch drive shaft with no machining allowance; and subjecting the laser-melted additively manufactured clutch drive shaft to slow cooling after welding and supplementary machining, thus completing the clutch drive shaft repair. This invention transforms subtractive repair into additive repair, selecting Fe-5 iron-based powder as the additive repair powder, so that after laser cladding, its surface hardness reaches or exceeds that of the original carburized substrate surface, allowing direct cladding on the original clutch drive shaft platform, restoring the clutch drive shaft, which cannot be repaired by grinding, to its original process level. Simultaneously, the wear resistance of the repaired platform is verified through fretting wear testing.
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