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The effect of cutting speed on the roughness level of low carbon steel cutting results using the trulaser 3030 machine

Introduction

The effect of cutting speed on the roughness level of low carbon steel cutting results using the trulaser 3030 machine. Explore the effect of cutting speed on low carbon steel roughness using a TruLaser 3030 machine. Higher speeds increase roughness, lower speeds decrease it. Optimal parameters identified.

Abstract

This research aims to determine the effect of variations in cutting speed on the roughness value of low carbon steel cutting results using CNC Laser Cutting TruLaser3030. This research uses experimental methods and descriptive statistical data analysis techniques and diagrams to present data on the measurement results of research specimens using cutting speeds of 2520 mm/minute, 2205 mm/minute, and 1890 mm/minute. Roughness testing was carried out using Surface Roughness Mitutoyo SJ-210. The results of the research produced data showing that the higher the cutting speed, the roughness value increases and the lower the cutting speed, the roughness value will decrease. And if the cutting speed is too high then the material cannot be cut. The lowest roughness value, namely 8.46µm, was at a cutting speed variation of 1980 mm/minute. The highest roughness value, namely 23.63µm, occurs at a cutting speed variation of 2520 mm/minute.

Review

This paper presents a focused investigation into a critical aspect of modern manufacturing: the relationship between cutting speed and surface quality in laser cutting. The research clearly articulates its objective, aiming to quantify the effect of varying cutting speeds on the roughness of low carbon steel processed by a TruLaser3030 CNC machine. Employing an experimental methodology with descriptive statistical analysis, the study utilized a standard surface roughness measurement tool (Mitutoyo SJ-210) to assess the cut specimens, providing a sound basis for the presented findings. The core findings establish a clear and direct correlation: an increase in cutting speed leads to a corresponding increase in surface roughness, while decreasing the speed improves the surface finish. A practical operational limit is also identified, noting that excessively high cutting speeds can prevent material severance altogether. Specific quantitative data support these trends, with the highest roughness value of 23.63µm recorded at 2520 mm/minute, and the lowest roughness of 8.46µm reported at 1980 mm/minute. For enhanced clarity in the abstract, it would be beneficial to explicitly state how the 1980 mm/minute speed relates to the initially listed experimental speeds (2520, 2205, and 1890 mm/minute), as it appears to be an optimal or additional point outside the primary parameter set mentioned. Overall, this study offers valuable practical insights for optimizing laser cutting processes, particularly for low carbon steel using the TruLaser3030 system. The established relationship between cutting speed and surface roughness provides useful data for manufacturers seeking to achieve specific surface quality requirements. The work serves as a foundational step, and future research could build upon these findings by exploring the interaction effects of other cutting parameters, such as laser power, focus position, or assist gas type and pressure, to develop a more comprehensive understanding of surface integrity in laser cutting.

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