Craig B Dallam

Title: Innovations by Craig B Dallam

Introduction

Craig B Dallam is a notable inventor based in University Heights, OH (US). He has made significant contributions to the field of welding technology, holding a total of 10 patents. His work focuses on improving the performance and efficiency of stick electrodes used in electric arc welding.

Latest Patents

One of his latest patents is for a cellulose coated stick electrode. This innovative design features a center alloy wire surrounded by an outer cellulose coating that includes powdered fluxing agents, alloy powder, cellulose powder, and a binder. The improvement involves forming the binder as a solution of sodium silicate, comprising 61-78 percent by weight. This binder constitutes 25-35% of the coating, producing at least about 4% by weight of water in the electrode. Additionally, the fluxing agent used is titanium dioxide, which makes up more than 12 percent of the coating. Another significant patent is for a stick electrode designed to deposit a high-strength weld metal bead on a workpiece. The yield strength of the weld metal ranges between 85 ksi and 125 ksi, regardless of the cooling rate. This electrode deposits weld metal containing 0.80-1.85% by weight manganese, 0.25-0.50% by weight molybdenum, 1.25-2.50% by weight nickel, and less than 0.07% by weight carbon. The ratios of carbon, manganese, and molybdenum are adjusted to achieve a carbon equivalent in the deposited weld metal ranging from 0.17 to 0.30, preferably less than 0.22.

Career Highlights

Craig B Dallam is currently employed at Lincoln Global, Inc., where he continues to innovate in the welding industry. His expertise and inventions have significantly impacted the efficiency and quality of welding processes.

Collaborations

Some of his notable coworkers include Robert J Weaver and Jon P Chiappone, who contribute to the collaborative environment at Lincoln Global, Inc.

Conclusion

Craig B Dallam's contributions to welding technology through his innovative patents demonstrate his commitment to advancing the field. His work continues to influence the industry and improve welding practices.