Jun Ni

Title: Innovations of Jun Ni in Welding and Manufacturing Technologies

Introduction

Jun Ni is a prominent inventor based in Ann Arbor, MI (US), known for his contributions to welding and manufacturing technologies. He holds a total of 3 patents that showcase his innovative approaches to engineering challenges.

Latest Patents

One of his latest patents is focused on hybrid friction stir welding for dissimilar materials through the electro-plastic effect. This innovative approach introduces high-density, short-period current pulses into the traditional friction stir welding process. This technique generates a localized softened zone in the workpiece during plastic stirring without significant additional temperature increase. The material softened zone is created by high-density current pulses based on the electro-plastic effect and moves along with the friction stir welding tool. This hybrid welding technique aims to achieve smaller downward force, a larger processing window, and better joint quality for dissimilar materials.

Another significant patent involves a high-speed, ultra-precision manufacturing station that combines direct metal deposition and electrical discharge machining (EDM). This system integrates a direct-metal deposition processing stage and a 5DOF dry micro-EDM stage to provide the submicron scale resolution necessary for ultra-precision processing of workpieces. The DMD processing stage includes optical feedback for dimensional control, utilizing a high-power, fiber-coupled diode laser with a fast response time. The EDM stage employs an inert gas with appropriate dielectric properties to perform surface finishing operations, further enhancing the quality of the manufactured components.

Career Highlights

Throughout his career, Jun Ni has worked with various companies, including Dm3d Technology, LLC. His work has significantly impacted the fields of welding and precision manufacturing, leading to advancements that improve efficiency and quality in production processes.

Collaborations

Jun Ni has collaborated with notable professionals in his field, including Jyoti Mazumder and Albert J. Shih. These collaborations have contributed to the development of innovative technologies and methodologies in manufacturing.

Conclusion

Jun Ni's contributions to welding and manufacturing technologies through his patents and collaborations highlight his role as a leading inventor in the industry. His innovative approaches continue to influence advancements in engineering and manufacturing processes.