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in these video we share tool design interview question and answer which is very important for fresher after watching this video a pressure can easily learn about jigs and fixtures to us design stack clamping principle of location production device inspection device let's start the video question number one what is tool design answer tool design is the process of designing and developing the tools methods and techniques necessary to improve manufacturing efficiency and productivity question number two define Jake answer a jig may be defined as a workholding device which locates and holds the component for a specific operation it is also provided with tool guiding elements jig is usually lighter in construction jigs are used on drilling reaming tapping and counter boring operation question number three what our production devices and inspection devices answer production device production devices are generally workholding devices such as work holders would slash without tool guiding / setting arrangement inspection device inspection devices are used to check the accuracy of the machined components it facilitates the interchangeability and uniformity of the produced components question number four state the purpose of jigs and fixtures answer jigs and fixtures are the devices which are designed for holding supporting and locating the workpiece and to guide the tools these devices are used to produce a repetitive type of workpiece with zero defects but these are economical and mass production only jigs and fixtures are designed to save production time to maintain dimensional accuracy to facilitate quick and in changeable as question number five what are types of mechanical actuate [Music] encapsulating clamps are screw clamps strap clamps latch clamps wedge or key clamps [Music] question number six what parts used in jigs and fixtures fabrication answer the parts used in jigs and fixtures are faces rest buttons ping feet lift rings drill bushes threaded fasteners clamps and pressure feet question number seven what materials commonly used in jigs and fixtures answer the materials commonly used in jigs and fixtures are high speed steel die steel carbon steel collect steel oil hardening none shrinking tool steel cast iron nylon or fiber high tensile steel question number 8 what is meant by 3-2-1 principle of location answer according to this principle a workpiece can be completely restrained by providing three location points in one plane to location points in the second plane in one location point in the third plane therefore it is called 3-2-1 principle of location question number nine what are the locating methods answer the locating methods are pin and button locators via locators Bush locators nest or cavity locators question number 10 what are the essential features of jigs answer the essentials features of jigs are reduction of idle time cleanliness provision for coolant hardened surface fool proofing position of clamps rigidity and stability safety question number 11 define stack clamping answer it is also called as a heel clamping it consists of a robust plate or strap Center stud in a heel pin when the clamping nut is on the clamp will be automatically pushed upwards by the spring to make the workpiece free then the clamp is rotated in anti-clockwise direction and the workpiece is removed do not forget to subscribe to our YouTube channel thanks for watching video please press like comment and subscribe button for update notification new video our important video link and playlist video name our share in the description box thanks and wait for our next video