Process of mounting two parts on top of each other by sacrificial matting and assembly thus achieved

The method employs sacrificial interface elements made of a softer material to achieve zero or near-zero clearance in part assemblies, addressing the challenges of high-precision machining and temperature changes, and simplifying the assembly process.

FR3155869A1Active Publication Date: 2025-05-30SAFRAN NACELLES
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Patent Information

Application Number
FR2023013127
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-27
Publication Date
2025-05-30
Estimated Expiration
2043-11-27

AI Technical Summary

Technical Problem

Existing methods for assembling parts with minimal clearance often require high-precision machining, temperature changes, or significant force, which can be challenging due to material constraints and assembly conditions.

Method used

A method involving the use of sacrificial interface elements made of a softer material than the parts being assembled. These interface elements deform plastically to match the shape of the mating part, achieving zero or near-zero clearance without the need for precise machining.

Benefits of technology

The method allows for efficient assembly of parts with minimal clearance, reducing the need for high-precision machining and temperature adjustments, while also simplifying the assembly process by using a softer material that deforms plastically.

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Abstract

Method of assembling by interlocking two parts, namely a first part (10) and a second part (20) respectively in a first material and a second material, comprising the step of attaching to the first part (10) at least one interface element (30) in a third material having a hardness lower than a hardness of the first material and of the second material and at least partially projecting from the first part (10) in such a way that the interface element (30) deforms plastically against a part (23) of the second part (20), during interlocking, by matching a shape of this part of the second part (20). FIGURE OF THE ABSTRACT: Fig. 1
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