Laurence A Jackman

Title: Innovations of Laurence A Jackman

Introduction

Laurence A Jackman is a notable inventor based in Monroe, NC (US). He has made significant contributions to the field of nickel base alloys, holding a total of three patents. His innovative methods have advanced the production of large diameter ingots, which are essential in various industrial applications.

Latest Patents

Jackman's latest patents focus on a method of producing large diameter ingots of nickel base alloys. This method includes casting the alloy within a mold and subsequently annealing and overaging the ingot at temperatures of at least 1200°F (649°C) for a minimum of 10 hours. The ingot undergoes electroslag remelting at a melt rate of at least 8 lbs/min (3.63 kg/min). After solidification, the ingot is transferred to a heating furnace within four hours and subjected to a novel post-ESR heat treatment. A suitable VAR electrode is then created from the ESR ingot, which is vacuum arc remelted at a melt rate of 8 to 11 lbs/min (3.63 to 5.00 kg/min) to produce a VAR ingot. This method allows for the preparation of premium quality VAR ingots with diameters exceeding 30 inches (762 mm) from Alloy 718 and other nickel base superalloys.

Career Highlights

Throughout his career, Jackman has worked with several prominent companies, including ATI Properties, Inc. and United Technologies Corporation. His experience in these organizations has contributed to his expertise in the field of materials science and engineering.

Collaborations

Jackman has collaborated with notable colleagues such as Betsy J Bond and A Stewart Ballantyne. These partnerships have likely enriched his work and led to further advancements in his field.

Conclusion

Laurence A Jackman is a distinguished inventor whose work in nickel base alloys has led to innovative methods for producing large diameter ingots. His contributions continue to impact the industry positively.