Superabrasive Tool for Refill Friction Stir Spot Welding (RFSSW) ID: 2019-009

This technology introduces a novel superabrasive tool designed to enhance the efficiency and durability of refill friction stir spot welding processes.

Technology Overview

The invention is a specialized tool for RFSSW, incorporating a probe, shoulder, and clamping section, utilizing superabrasive materials like Polycrystalline Diamond (PCD) to improve tool longevity and enable high-volume production. This innovation is aimed at overcoming the limitations of traditional tool materials by reducing wear and physical reactivity with workpieces at high temperatures.

Key Advantages

• Significantly reduces the wear and physical reactivity between the tool and lightweight materials such as aluminum
• Eliminates the need for frequent tool dressing and cleaning
• Removes the necessity for additional coatings or hardening processes for the tool, enhancing its durability
• Facilitates high-volume commercial applications by improving tool life

Problems Addressed

• Addresses the formation of abrasive intermetallic compounds during welding, a common issue with previous tool designs
• Overcomes the limitations imposed by the reactivity of traditional tool materials at elevated temperatures

Market Applications

• Automotive manufacturing, particularly in the production of lightweight aluminum components
• Aerospace industry, for the construction and repair of aircraft parts requiring high-strength welds
• High-volume commercial manufacturing where durability and efficiency of welding processes are critical

Additional Information

Technology ID: 2019-009
Sell Sheet: Download the Sell Sheet here
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Date Published: 28 March, 2025