International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
www.irjet.net
ENHANCED LASER CNC MACHINE PERFORMANCE ON VARIOUS ALUMINIUM SHEET QUALITIES: A REVIEW Atul Kumar Verma1, Dr. Piyush Pal2 1M.Tech, Mechanical Engineering, GITM, Lucknow, India
2Assistant Professor, Department of Mechanical Engineering, GITM, Lucknow, India
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Abstract - Laser Computer Numerical Control (CNC)
technology to be realized. In 1960, Theodore H. Maiman built the first working laser, a ruby laser.
machines have emerged as powerful tools in modern manufacturing processes, offering exceptional precision, speed, and versatility. This review paper aims to provide a comprehensive analysis of the performance aspects of laser CNC machines by synthesizing existing literature and research findings. The paper begins by outlining the fundamental principles of laser CNC machines, including their basic components, working mechanisms, and various types of lasers employed. It then delves into a detailed examination of performance evaluation parameters that encompass both quantitative and qualitative measures. In terms of quantitative performance metrics, factors such as cutting speed, accuracy, repeatability, and surface finish are scrutinized. The review explores the influence of laser power, beam quality, focusing optics, and motion control systems on these parameters. Additionally, it highlights the significance of material characteristics, such as thickness, composition, and thermal conductivity, in shaping the machine's performance.
2.
Introduction of CNC Systems: CNC systems, which automate machine tool operations through computer control, emerged in the late 1940s and early 1950s. The development of digital computers and the integration of numerical control techniques revolutionized manufacturing processes.
3.
Integration of Lasers with CNC: In the 1960s, researchers began exploring the use of lasers as a tool for material processing. In 1965, the first laser cutting experiment was conducted, demonstrating the potential of lasers for precision cutting operations.
CNC machining is a cycle where assembling machines and instruments are moved as per pre-modified PC programming. Accordingly, makers can create parts quicker than expected, lessening waste and disposing of human blunders. This creation strategy is utilized to work an assortment of perplexing machines, which will be canvassed later in this article. Fundamentally, CNC machining makes it conceivable to perform three-layered cuts by adhering to a solitary arrangement of guidelines. This is the figure of the CNC machine:
Furthermore, the review emphasizes the evaluation of qualitative aspects, including flexibility, adaptability, and ease of use. Factors like software compatibility, user interface, tool changing capability, and automation potential are discussed to provide a comprehensive understanding of the machine's operational convenience and productivity. Key Words: CNC machine, CO2 laser machine, Metal Sheet, Aluminum Sheet, Pin Profile.
1. INTRODUCTION The history of laser CNC machines dates back several decades and is intertwined with the development of laser technology and computer numerical control (CNC) systems. Here is a brief overview of the key milestones in the history of laser CNC machines: 1.
Invention of the Laser: The concept of the laser (an acronym for Light Amplification by Stimulated Emission of Radiation) was first proposed by Albert Einstein in 1917, but it took several decades for the
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Figure-1: Laser CNC Machine.
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