Mini Belt grinder Project
Mini Belt grinder Project report
Abstract: Machining processing industries have continuously developed and improved technologies and processes to transform finished product to obtain better super finished product quality and thus increase products. Abrasive machining is one of the most important of these Processes and therefore merits special attention and study.Belt grinding is an abrasive machining process used on metals and other materials. It is typically used as a finishing process in industry. The main objective of thisproject isto design and fabricate anabrasive belt grinding which can be used as versatile grinding machine, the work area can be rotated from 0 degree to 180 degree. The 0 degree work area can be used for bottom grinding of component, the 90 degree workarea can be used for vertical grinding of component and The 180 degree work area can be used for top grinding of component.With the increasing requirements of modern industrial technology and high-performance technological products in respect of part precision, surface integrity,machining efficiency and batch quality stability, grinding has played a more and more important role. It becomesan important part of advanced machining technology and equipment, and is a research frontier in manufacturing science. Grinding is the process of removing metal by the application of abrasives which are bonded to form a rotating wheel or belt. When the moving abrasive particles contact the workpiece, they act as tiny cutting tools, each particle cutting a tiny chip from the workpiece. It is a common error to believe that grinding abrasive wheels remove material by a rubbing action; actually, the process isas much a cutting action as drilling, milling, and lathe turning. Grinding is used to finish work pieces that must show high surface quality (e.g., low surface roughness) and high accuracy of shape and dimension. As the accuracy in dimensions in grinding is on the order of 0.005mm, in most applications it tends to be a finishing operation and removes comparatively little metal, about 0.25 to 0.50 mm depth. However, there are some roughing applications in which grinding removes high volumes of metal quite rapidly. Thus, grinding is a diverse field. Therefore we have designed grinding machine in miniature and portableform which can give very precise machining and grind up to 0.01-0.005 mm depth with high accuracy.Belt grinding isan abrasive machining process used on metals and other materials. It is typically used as a finishing process in industry. A belt, coated in abrasive material, is run over the surface to be processed in order to remove material or produce the desired finishThe belt grinding process is variable by adjusting certain parameters such as belt speed, grinding pressure, feed speed, durometer of the contact drum, size of the contact drum and the abrasive belt that is used. The machines can be made for wet or dry operation. Furthermore, a wide belt grinding machine can be constructed with single or multiple heads. The first head is used for coarse grinding and the next heads gradually make a finer finish. Wide belt grinding is also used as a high stock removal method for special metals (e.g. stainless steel, titanium, and nickel alloys).Belt grinding belongs to elastic grinding and has the multi-functions of grinding, milling and polishing, etc. It is characterized by good workpiece-shape adaptability, low vibration of grinding system, low roughness of machining surface, maintenance of residual compressive stresses, low grinding temperature and resistance to workpiece burning; it also has the feature of cool grinding.The V-shaped section can be finished only by thebelt grinding method.