## 1 Introduction  
Manufacturing is the main motivation for people comfort and success. However, it also forcefully chips in directly and indirectly to the want of natural resources, environment and social conflicts. Thus, detection of solutions to a more sustainable development of global manufacturing-which together brings up the triple bottom line with the three dimensions of sustainability-is of significance and more immediate than ever. The adoption of hybrid manufacturing techniques as a means for sustainable production is becoming increasingly appealing in today's industrial landscape. These approaches are geared towards minimizing energy consumption, optimizing the manufacturing process, and ultimately reducing production costs across a spectrum of products. Among these techniques, hot machining, often referred to as thermally enhanced machining, has gained significant attention. Hot machining involves the process of working with challenging-to-machine metals and alloys at elevated temperatures, facilitated by an external heat source. This controlled heating serves to soften the material, ultimately enhancing its machinability. The benefits of hot machining include reducing machining power requirements, improving the quality of the machined surface, and prolonging tool life. AISI630 steel is a type of stainless-steel alloy with a martensitic matrix which is mainly used in the military, petrochemical, nuclear and aerospace industries [1]. AISI630 stainless steel is also used in the manufacture of pressure vessels and components exposed to high-stress and corrosive environments in oil and gas industries. The main hardening mechanism of this steel is age hardening or precipitation hardening. The age hardening temperature of this steel is from 482 \({}^{\circ}\)C to 621 \({}^{\circ}\)C (900 \({}^{\circ}\)F to 1150 \({}^{\circ}\)F) and the maximum hardness could be around 48 HRC, which is obtained by age hardening for one hour at 482 \({}^{\circ}\)C. In the context of machining AISI630 hardened stainless steel, its high hardness, coupled with the presence of dispersed fine-grain copper deposits and hard carbide particles like niobium carbide within the martensitic matrix, leads to significant cutting tool wear and subpar workpiece surface quality. Researchers and industries have turned to hot machining processes to tackle the challenges posed by hard-to-cut materials [2]. For instance, [PERSON] and [PERSON] [3] delved into laser-assisted turning of Al\({}_{2}\)O\({}_{3}\) ceramic, where their findings indicated that hot turning can substantially reduce workpiece surface roughness and cutting force by approximately 70% and 20%, respectively [4]. Similarly, super-alloys, known for their high cutting forces and tool wear, have been investigated through laser-assisted turning of Inconel 718 super-alloy, revealing a remarkable 35% reduction in specific energy, a 22% improvement in surface roughness, and reduced tool wear when compared to conventional cutting [5]. In the case of challenging materials like Metal Matrix Composites, renowned for their high strength and hardness but notorious for causing extensive tool wear and subpar surface quality, [PERSON] et al. explored laser-assisted machining of an aluminum metal base composite enriched with fine Al\({}_{2}\)O\({}_{3}\) particles [6]. Their research unveiled the potential to lower cutting force, enhance surface roughness, and extend tool life by increasing the preheating temperature. However, it's worth noting that while hot machining is generally effective in reducing surface roughness, cutting force, and tool wear for many hard-to-cut materials, it may inadvertently elevate tool temperature, a situation observed in certain metals like titanium alloys, consequently leading to increased cutting tool wear.