期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：3
页码：4573
DOI：10.15680/IJIRSET.2017.0603218
出版社：S&S Publications
摘要：The project is about a design and development of multi head drilling jig for holding cylindrical parts formass production of drilling operation. Drilling jig is used whenever is necessary to drill hole to exact location. Itidentified the numerous advantages that are associated with the use of jigs in manufacturing to include: productionincrease, cost reduction, interchangeability and high accuracy of parts, reduction of the need for inspection and qualitycontrol expenses, reduction of accident as safety is improved, automation of machine tool to an appreciable extent,easy machining of complex and heavy components, as well as low variability in dimension which leads to consistentquality of manufactured products. The work also explained that since the design is dependent on numerous factorswhich are analyzed to achieve an optimum output, that jigs and fixtures should be made of rigid light materials tofacilitate easy handling. For adequate strength and rigidity, a mild steel with 16 millimeters diameter was chosen forthe design of a sample jig. Mild steel which contain about 0.29% of carbon are very cheap, and because of theireasy availability are often the choicest material for the making of jigs With 1.5 as the material factor „k‟ for mild steel,a feed rate of 0.17 millimeter per revolution, and a drill diameter of 10.2 millimeters, the value of the Clamping Forcewas also calculated as upto 500N. Finally jigs must be provided with adequate clearance which should allow forvariations in size of compo nents especially during forging, milling, and casting operations.
