Min-Ha Lee

Title: Min-Ha Lee: Innovator in Tool Steel Technology

Introduction

Min-Ha Lee is a prominent inventor based in Incheon, South Korea. He has made significant contributions to the field of material science, particularly in the development of tool steel with enhanced properties. His innovative approach has led to advancements that benefit various industrial applications.

Latest Patents

Min-Ha Lee holds a patent for a tool steel characterized by its strength and high impact toughness. This tool steel composition includes 0.7 to 0.9 wt % of carbon, 0.4 to 0.6 wt % of silicon, 0.4 to 0.6 wt % of manganese, 7.0 to 9.0 wt % of chromium, 1.5 to 2.5 wt % of molybdenum, up to 1.0 wt % or less of vanadium, 0.01 to 0.06 wt % of cerium, and the remainder being iron and inevitable impurities. The resulting tool steel achieves a hardness of 59 to 65 HRC and an impact toughness of 30 to 42 J/cm. The inclusion of cerium enhances the steel's strength and toughness by reducing primary carbide content in both the as-cast state and after solution treatment and tempering.

Career Highlights

Min-Ha Lee is affiliated with the Korea Institute of Industrial Technology, where he continues to push the boundaries of material innovation. His work has garnered attention for its practical applications in various industries, showcasing his expertise in metallurgy and engineering.

Collaborations

Some of his notable coworkers include Jin-Gu Han and Joong-Hwan Jun, who have collaborated with him on various projects related to material science and engineering.

Conclusion

Min-Ha Lee's contributions to tool steel technology exemplify the impact of innovative thinking in material science. His patent reflects a commitment to enhancing industrial materials, paving the way for future advancements in the field.