Cryogenic Machining through the Spindle and Tool for Improved Machining Process Performance and Sustainability: Pt. I, System Design

Cryogenic machining is considered a sustainable alternative to machining with flood cooling. This paper describes a sustainable cryogenic machining solution which considers not only the conventional machining performance, but also the overall sustainability performance in each of the sustainability elements: economy, environment and society. A brief review of the potential benefits and drawbacks of cryogenic machining is presented in this paper. Using factors as a guideline, an optimized cryogenic cooling system and tooling has been developed. The cooling system is optimized for flow quality, thermal insulation, controllability and safety. The innovative cryogenic cutting tool design utilizes built-in coolant channels to achieve the optimal process performance. This solution incorporates outstanding cooling capability for optimal performance, while minimizing or eliminating the adverse effects.