Updated stacking and thermal control techniques help manage inbound blade variability, delivering more predictable hardness and reduced rework

CLEVELAND, OH – Kowalski Heat Treating (KHT) has introduced a series of process and racking enhancements designed to improve outcomes in knife blade heat treating, addressing a common: inconsistent incoming blade geometry that can impact flatness, hardness, and final performance.

"Many of our knife manufacturers often send us blades with variations in thickness and geometry, yet the expectation remains the same - consistent, high-quality performance," said Steve Kowalski, President of Kowalski Heat Treating. "We've adjusted how we stack and process those blades to better control those variables and return parts that are ready for finishing, helping reduce scrap and additional processing for our customers."

KHT's internal research and development efforts identified incoming variability as a key driver of inconsistent heat treat results. In response, the company refined its approach to blade stacking orientation, optimized load configurations, and improved quench consistency. These changes have enabled tighter hardness control while preserving flatness and dimensional stability, all critical factors for manufacturers producing high-performance knives for outdoor, culinary, and tactical applications.

"Our customers depend on reliable blade performance to support their brand and end users," said Peggy Andrews, Head of Sales and Customer Service at Kowalski Heat Treating. "We focus on removing as much variability as possible in our heat treating process so that every batch meets expectations and supports output goals."

Kowalski Heat Treating continues to provide specialized solutions for knife manufacturers, including K-Life knife edge processing, K-Salt salt-to-salt heat treating, and K-Vac high-pressure vacuum processing. These services are complemented by custom tooling, racking systems, and in-house packaging designed to improve workflow efficiency and minimize handling.

Addressing challenging "PIA (pain in the @%$) Jobs!" remains a defining part of KHT's approach. From inconsistent inputs to complex geometries and meeting demanding specifications, the company works alongside customers to develop practical solutions that improve production reliability and reduce manufacturing risk.

For more information, contact Peggy Andrews at pandrews@khtheat.com.