Roger Etherington

Title: The Innovative Contributions of Roger Etherington

Introduction

Roger Etherington is a notable inventor based in Boxford, MA (US). He has made significant contributions to the field of electromachining, holding a total of 3 patents. His work focuses on advanced machining techniques that enhance the manufacturing of complex geometries, particularly in the aerospace industry.

Latest Patents

One of Etherington's latest patents is titled "Multi-axis numerical control electromachining of bladed disks." This invention utilizes a multi-axis machine with numerical control on each axis to facilitate the machining of intricate airfoil geometries. The tooling, typically made from low-cost materials like brass, rotates during the machining process. A DC power source, either continuous or pulsed, provides the necessary voltage across the tool and workpiece. Additionally, a medium such as water or electrolyte is used to aid in the controlled removal of metal through high-intensity thermal erosion.

Another significant patent is the "Method and apparatus for near net shape rapid rough electromachining for blisks." This invention employs a ring or inverted-cup shaped cutting element as a tool electrode for electromachining. It is designed to rough machine the airfoils on blisks to near net shape, utilizing a CNC drive arrangement for precise positioning and rotation of the cutting element.

Career Highlights

Roger Etherington is currently employed at General Electric Company, where he continues to innovate and develop new machining technologies. His expertise in electromachining has positioned him as a key player in the advancement of manufacturing processes within the aerospace sector.

Collaborations

Throughout his career, Etherington has collaborated with talented individuals such as Michael Scott Lamphere and Bin Wei. These partnerships have contributed to the successful development of his patented technologies and have fostered a collaborative environment for innovation.

Conclusion

Roger Etherington's contributions to the field of electromachining are noteworthy and impactful. His innovative patents and career at General Electric Company highlight his dedication to advancing manufacturing technologies. His work continues to influence the aerospace industry and beyond.