User:Anuj1202/sandbox

jig and fixtures are the devices which help in increasing the rate of production of identical part and simultaneously reducing the human efforts required for producing these parts.It has already been emphasied earlier that a centre lathe is a suitable machine tool for producing individual parts of different shapes and sizes,But for producing individual similar article in great number its use will not be economical.Against this a capstan or turret lathe can be easily adopted fpr repetition work on account of the multi tooling arrangement and the use of traverse stops.This increases or turret lathe and may involved the use of drilling,milling,planning,and grinding machine etc.If such article are to be produced in identical shapes and sizes on mass scale suitable device have to be used for holding and locating purpose so that the repetition work cab be done economically.These devices are the jigs and fixtures.