Location History:
- Port Jefferson Station, NY (US) (1986 - 1989)
- Stony Brook, NY (US) (1992 - 1993)
- Rochester Hills, MI (US) (1993 - 2008)
Company Filing History:
5 out of 801 
4 out of 6 
2 out of 27 
Years Active: 1986-2025
Title: Innovator Subramaniam Rangaswamy: Pioneering Advancements in Braze Filler Metals and Composite Barrels
Introduction
Subramaniam Rangaswamy, based in Rochester Hills, MI, is a distinguished inventor whose contributions have led to 14 patents in various domains. His innovative advancements particularly focus on materials essential for high-temperature applications and improvements in manufacturing processes.
Latest Patents
Rangaswamy's recent patents include a groundbreaking invention of an iron-based braze filler metal designed for high-temperature applications. This innovative brazing filler metal composition features excellent wettability to nickel, cobalt, and iron-based metals, resulting in braze joints that exhibit high strength alongside remarkable heat and corrosion resistance. The unique formulation includes chromium, silicon, and phosphorus, with additional properties enhancing the bonding characteristics while maintaining cost-effectiveness suitable for manufacturing diverse heat exchangers and catalytic converters.
Another notable patent pertains to casting alloys and the method for making composite barrels utilized in extrusion and injection molding. The composite barrel comprises an outer housing with a cylindrical bore, enhanced by a wear-resistant lining made from a nickel or cobalt alloy. This lining is fabricated using centrifugal casting techniques, allowing for the production of durable and affordable components without the need for costly vacuum or argon atmospheres.
Career Highlights
Throughout his career, Subramaniam Rangaswamy has worked with notable organizations such as the Perkin-Elmer Corporation and Sulzer Plasma Technik, Inc. His roles in these companies involved extensive research and development, allowing him to apply his expertise in materials sciences and engineering.
Collaborations
Rangaswamy has collaborated with talented professionals in his field, including Robert A. Miller and John H. Harrington. These partnerships have played a vital role in enriching his research endeavors and fostering innovation in materials used for industrial applications.
Conclusion
Subramaniam Rangaswamy stands out as a key innovator in his field, with significant contributions reflected in his 14 patents. His work on iron-based braze filler metals and composite barrels showcases his commitment to developing advanced materials that meet modern manufacturing needs. His continued innovations are anticipated to pave the way for future advancements in the industry.