Location History:
- Birminghan, MI (US) (2000)
- Birmingham, MI (US) (1997 - 2002)
Company Filing History:
Years Active: 1997-2002
Title: Innovations by Krishnan Narasimhan in Cutting Tool Technology
Introduction
Krishnan Narasimhan is a notable inventor based in Birmingham, MI (US), recognized for his contributions to cutting tool technology. He holds a total of four patents, showcasing his expertise in the field of cemented carbide cutting inserts. His innovative approaches have significantly advanced the performance and durability of cutting tools used in various industrial applications.
Latest Patents
Among his latest patents, Narasimhan has developed a process for forming titanium carbonitride coated cemented carbide cutting inserts. This process involves creating a substrate that is more than 70 percent by weight tungsten carbide, with a cobalt matrix binder featuring a cobalt-enriched stratified surface. The method includes chemically vapor depositing a layer of titanium carbonitride on the substrate by heating gaseous reactants such as titanium chloride, methane, hydrogen, and nitrogen. This results in a titanium carbonitride coated insert that possesses an eta phase in the cemented carbide substrate adjacent to the coating. The eta phase consists of cobalt, tungsten, and carbon compounds. Furthermore, the titanium carbonitride surface is treated with a carburizing gas to convert the eta phase into elemental cobalt and tungsten carbide, enhancing the strength of the carbonitride layer through solid solution strengthening and grain boundary strengthening.
Another significant patent involves the formation of titanium carbonitride coated stratified cobalt enriched cemented carbide cutting inserts. Similar to his previous work, this process also utilizes a substrate comprised of over 70 percent tungsten carbide and a cobalt matrix binder. The innovative method of chemically vapor depositing titanium carbonitride on the substrate leads to the creation of a robust cutting insert that improves cutting performance.
Career Highlights
Krishnan Narasimhan is currently associated with Valenite, Inc., where he continues to innovate and develop advanced cutting tool technologies. His work has not only contributed to the company's product offerings but has also set new standards in the industry for cutting tool performance and reliability.
Conclusion
Krishnan Narasimhan's innovative patents in titanium carbonitride coated cutting inserts demonstrate his significant impact on the cutting tool industry. His expertise and dedication to advancing technology continue to influence the field positively.