International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 03 | Mar 2025
p-ISSN: 2395-0072
www.irjet.net
DESIGN AND DEVELOPMENT OF A MULTIPURPOSE COMBINED BUFFING MACHINE SARAVANAKUMAR M1, NAGARAJ A2 1,2 Lecturer, Department of Mechanical Engineering, PSG Polytechnic College, TamilNadu, India
---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - This project focuses on the design and
polished specimen through selective chemical attack. A common misconception is that a buffed surface always has a mirror-bright finish; however, most mirror-bright finishes are actually the result of a combination of polishing and buffing. Polishing serves multiple purposes, such as enhancing an item’s appearance, preventing contamination, removing oxidation, creating a reflective surface, and preventing corrosion. In metallography and metallurgy, polishing is used to achieve a flat, defect-free surface for examining a metal’s microstructure under a microscope. Silicon-based polishing pads or diamond solutions are often used in the process. Polishing stainless steel can also enhance its sanitary properties. In a buffing machine, the buffing wheel spins at high speed in a plane perpendicular to the surface being machined, ensuring surface flatness and maintaining the parallelism of opposite surfaces. The depth of cut is controlled by the sliding motion of the table on which the buffing motor is mounted. This sliding mechanism ensures that the entire surface is evenly machined.
fabrication of a combined buffing machine that enhances multipurpose applications while improving production rates with high dimensional accuracy. Buffing, a metal polishing process, smoothens surfaces by rubbing with polishing particles on a rotating disk. Traditional manual buffing methods often result in inaccuracies, affecting surface finish and productivity. The proposed machine integrates linear and radial buffing techniques using a single motor, ensuring precise polishing with increased efficiency. A 0.25 HP, 1440 rpm AC motor rotates the workpiece, while a 90-watt, 60 rpm DC gear motor controls the buffing actuator. The machine frame, made of mild steel for durability, is supported by deep groove ball bearings for improved load handling and longevity. Gears facilitate the transmission of rotary motion and power. By automating buffing movements, this system eliminates small dimensional errors, enhances surface finish, and significantly reduces processing time. Its cost-effectiveness and efficiency make it a valuable innovation for industrial applications, benefiting both production and environmental sustainability.
1.1 Problem Definition
Key Words: Buffing Machine, Dimensional Accuracy, Productivity, Errors, Sustainability
1. INTRODUCTION
Nowadays, it is essential to continuously increase the production rate to achieve higher output with minimal human intervention. To meet these demands, there is a need to develop innovative machinery that enhances efficiency. The buffing operation, primarily performed on the face of components, is similar to polishing and is aimed at improving surface finish. Currently, buffing is done by mounting a fine polishing disk on the spindle of a bench grinder and feeding this rotating disk against the job surface. Buffing is the process of creating a smooth and shiny surface by rubbing it or using chemical action, resulting in a significant specular reflection. Metal polishing is a multistage process. The first stage begins with rough polishing, where material removal occurs, using progressively finer buffing wheels until the desired finish is achieved.
1.2 Objective
The second stage, fine polishing, involves minimal or negligible material removal and is mainly used to eliminate scratches from the specimen’s surface. Finally, etching is performed to reveal the microstructural features of the
© 2025, IRJET
|
Impact Factor value: 8.315
In most industries, the buffing process is performed manually by hand, which affects the accuracy of the workpiece’s finish and dimensions. Manually buffed workpieces are more likely to be rejected or require rework, leading to increased production time. Some industries face challenges in buffing both radial and linear components with the same level of accuracy in a short time. To achieve high precision for both types of components, they often purchase two separate machines for each operation. This requires additional space and operators, ultimately increasing the company's costs.
|
To buff the components with high accuracy. To reduce the rejection and rework of workpiece. To increase the production time. To implement combined form technique to increase production rate. To reduce the cost of the company. To be applicable in buffing different workpieces.
ISO 9001:2008 Certified Journal
|
Page 150