In which of the following operation of lathe machine is the tool NOT feed in a straight path ?

Explanation

Concept: Contour turning: In this operation of the lathe machine, the tool is not feed in a straight path. Instead, the tool follows a contour , a contoured form is created in the turned part. Important Points Taper turning: The turning operation used for producing the taper on the cylindrical component is called a taper turning operation. Facing: The turning operation used for reducing the length of the component is called the face turning operation. Facing is mostly used to finish the edges in necklines, armholes, hems, and openings. They are also used widely in all other sewings like quilts and home decor items like curtain hems. Shaped facings are cut to match the outside shape of the piece to provide a neat finish, and are often cut from the same pattern pieces. Form Turning: It is a method of taper turning in which a broad nose tool having a straight cutting edge is set on to the work at half taper angle and is feed straight into the work to generate a tapered surface. With this method, tapers of only short lengths can be turned.