Experimental Investigation on the Effects of Nano Particles Suspended Coolant in CNC Machining
DOI:
https://doi.org/10.15662/IJEETR.2026.0802299Keywords:
Nano particles, CNC machining, cutting fluid, coolant performance, surface roughness, tool wear, heat dissipation, machining efficiency, tribology, experimental analysisAbstract
The "Hook" and Summary
* Purpose: Provide a concise summary of the entire work.
* Content: Briefly state the problem, the objective, the methods used, and the primary findings.
* Length: Aim for 250–300 words. Since this is a full page, use a larger font for the title and include Keywords at the bottom to fill the space professionally.Austenitic stainless steel 304 is widely used in industries such as aerospace, automotive, and food processing due to its excellent corrosion resistance, toughness, and formability. However, machining this material—especially through CNC turning—presents challenges because of its high work-hardening rate, low thermal conductivity, and tendency to form built-up edges (BUE). Therefore, optimizing machining parameters is essential to improve productivity, surface finish, and tool life.
One of the key factors in CNC turning of SS304 is the selection of cutting parameters, including cutting speed, feed rate, and depth of cut. Lower cutting speeds are generally preferred to minimize heat generation and reduce tool wear, while moderate feed rates help in controlling surface roughness. Excessively high speeds can accelerate tool degradation due to the material’s poor heat dissipation, whereas very low speeds may lead to BUE formation. Hence, a balanced combination of parameters is crucial.Tool material and geometry also play a significant role in optimization. Carbide tools, particularly those with coatings such as TiN or TiAlN, are commonly used due to their high hardness and heat resistance. Sharp cutting edges with proper rake angles reduce cutting forces and minimize work hardening. Additionally, th chip breakers helps in efficient chip evacuation, preventing damage to both the tool and the workpiece
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