In todays session will learn about Lathe Machine Operations. Here Turning is the operation of removing excess material from workpiece to produce cylindrical surface to desired length. Facing is the Operation of reducing length of workpiece by feeding perpendicular to lathe axis. Chamfering is the Operation of getting a beveled surface at edge of cylindrical workpiece. Knurling is the Operation of obtaining a diamond shape on workpiece for gripping purpose. This is done to provide a better gripping surface when operated by hands. It is done using knurling tool. Thread cutting Operation is used to obtain continuous ”helical grooves” or ” threads’‘. Grooving Operation is the process of reducing diameter of workpiece over a narrow surface. Spring Winding is the process of making coiled spring by passing wire around mandrel which is revolved on chuck or between centers. Forming is the process of turning convex, concave, or any irregular shape. Drilling is the operation of producing cylindrical hole in workpiece. Reaming is the operation of finishing and sizing a hole which has been already drilled or bored. Boring is the operation of enlarging hole which is already drilled, punched or forged. Counterboring is the operation of enlarging end of hole through certain distance. Tapping is the operation of cutting internal threads of small diameter using multipoint cutting tool called as tap. Undercutting is the process of boring a groove or large hole at fixed distance from the end of hole.
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