International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 07 | July 2023
p-ISSN: 2395-0072
www.irjet.net
ENHANCED LASER CNC MACHINE PERFORMANCE ON VARIOUS ALUMINIUM SHEET QUALITIES Atul Kumar Verma1, Dr. Piyush Pal2 1M.Tech, Mechanical Engineering, GITM, Lucknow, India
2Assistant Professor, Department of Mechanical Engineering, GITM, Lucknow, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - In this research work, we have studied to
Arduino CNC Shield Driver microcontroller. Producing a laser cutting and engraving equipment with laboratory-like accuracy was the main objective [2]. The outcome appears to be for better-quality engraving and cutting. described the creation of a microcontroller-based plotter and concentrated on the industry's sketching component. By employing these kinds of equipment, sophisticated designs from many industrial workplaces may be obtained. To acquire the range of motion over the three translational axes, X, Y, and Z, three motors were employed in this research [1]. The microcontroller was programmed using the Arduino IDE, and the G-codes were created using the CAMotics software.
increase or improve the performance of the CNC laser machine at the different grade of the aluminium sheet or plate; in this research work we have selected three grade of the aluminium sheet or plate such as Al 5086, Al 6070, and Al 7075. The length and width of the all these three grade of the aluminium sheet are kept constant such as 1000mm*45mm, the thickness of these three aluminium plate get varies from 6.0mm, 7.0mm, 8.0mm, 9.0mm, and 10.00mm, we have taken the different thickness of the aluminium to check the effect of cutting speed. In this research work, we have studied on the basis of the Power of laser vs. Cutting Speed, Diameter of nozzle vs. surface roughness, Gas Pressure vs. cutting Speed, Plate thickness vs. Cutting Speed, Plate thickness vs. Surface Roughness, and Power of laser vs. Surface Roughness. We have used the CO2 CNC laser machine to cut the different grade of the aluminum sheet. In this research, we have increase or decrease the power of the laser to see the effect on the cutting speed, some time increase or decrease the diameter of the nozzle of the CO2 CNC laser machine, and sometime increase or decrease the gas pressure to see the effect of the cutting speed of these three grade of the aluminum sheet. On the basis on this parameter, we will see that which parameter is playing an important role to improve the performance of the CO2 CNC laser machine.
A small pen plotter machine was created that can use G codes to write on paper or other writing surfaces and draw intricate drawings. This little device could be moved around and was simple to construct. Two Stepper motors were utilised for precise movement in the X and Y axes, respectively, and one servo motor was used to raise the pen in the Z direction. Drivers were utilised by the author to provide the stepper motors and servo motor with G codes in sequence [3]. The Arduino UNO microcontroller board was utilised by the author to programmatically control the position of the motors. Arduino is equipped with a CNC shield, which distributes current during Arduino commands and uses a stepper motor to transform G-code commands into digital pulses. The machine took design input in the form of G codes and transformed them using software before sending it to an Arduino, CNC shield, stepper motors, and a servo motor [4].
Key Words: (Al 5086, Al 6070, Al 7075, CO2 Laser, CNC Machine, Aluminum Sheet.
1. INTRODUCTION
1.1. LASER CUTTING
The researchers have created a variety of methods for enhancing a variety of product attributes. Design and build a portable laser cutting and engraving device with the primary objective of creating one that can be easily controlled by an Arduino CNC. It was made more inexpensive than CO2 laser cutters, one of the most accurate and practical cutting methods now available. Common methods for pumping CO2 lasers include employing radio frequency energy or running a current through the gas mixture [1]. The graphical picture was transformed into the G coding language using the ELEKSMAKER Software.
The most well-known laser material processing technology, laser cutting, is a way to separate and shape a work item into segments with the necessary geometry. A concentrated laser beam is moved at a consistent distance over the surface of the work item to perform the cutting operation, producing small cut kerfs [5]. Along the intended cut shape, these kerfs completely penetrate the material [6]. The absorbed energy warms and changes the potential kerfs volume into a volatile or readily removeable condition (molten, evaporated, or chemically altered). Typically, a gas jet that impinges coaxially with the laser beam supports the removal of the material. The changed material is accelerated by the cutting gas and ejected from the kerfs [7].
Led laser Modules with a 500mw power output and a 450nm wavelength are used for a variety of applications that call for small sizes, extended working lives, and low power consumption. Solid works programme was used to create all design outlines. The model's stepper motor is managed by an
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