Method for Metallurgical Bonding of a Component Made of Titanium Aluminide with a Component Made of a Dissimilar Metal and Metallurgical Bonding

Simple SummaryContent extracted from patent full text and abstract with AI.

This invention describes a method for securely joining a titanium aluminide (TiAl) component to another component made from a dissimilar metal (such as steel) using an intermediate part. The process involves soldering (brazing) the intermediate part to the TiAl component and welding it to the dissimilar metal component. This combination leverages the benefits of both processes to form a durable, high-performance bond, especially useful for components subjected to high mechanical and thermal stresses.

Use CasesContent extracted from patent full text and abstract with AI.

• Manufacturing of turbine rotors, especially joining TiAl turbine wheels to steel shafts in jet engines or power generation turbines
• Production of high-performance automotive or aerospace components that require the combination of TiAl and steel or other metals
• Fabrication of lightweight yet strong structural components in the energy, aviation, or space industries
• Repair or retrofitting of multi-material machinery parts where TiAl and dissimilar metals must be securely joined

BenefitsContent extracted from patent full text and abstract with AI.

• Reduces risk of crack formation and brittle phases at the joint, improving the reliability of the connection, particularly for brittle TiAl alloys
• Enables joining materials with fundamentally different properties (e.g., TiAl and steel) without degrading their key characteristics
• Provides high mechanical strength and thermal stability suitable for use in harsh environments like turbines or engines
• Allows for optimal energy input and thermal management during joining, minimizing adverse effects on both components
• Enables design of larger, more robust joint surfaces, further enhancing durability and load-bearing capacity

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method for bonding a titanium aluminide (TiAl) component to a dissimilar metal component, the two components being bonded by means of an intermediate part between the titanium aluminide component and the dissimilar metal component. Said method is characterised in that the intermediate part is soldered to the titanium aluminide component, and welded to the dissimilar metal component. The invention also relates to a corresponding bonded connection.