The drill does not produce the correct hole size some time with the good surface finish. A hole with precision size can be produced with a good finish off a pre-drilled ..
A number of types of machine tools gradually increased till mid 20th century and after that started decreasing based on Group Technology. However, machine tools ..
Jigs and fixtures are essential to working holding and tool holding devices in industries. These devices facilitate clamping of the workpiece on the machine tool ..
Crater Wear: The wear taking place on the rake face of a single point cutting tool like crater is called crater wear. The crater wear is mainly caused due to The presence ..
A feeler gauge is an instrument used to measure gap widths between two flat surfaces, where it is difficult to reach. Feeler gauges are found in metrology section. ..
A machine tool is defined as one which while holding the cutting tools, would be able to remove metal from a workpiece in order to generate the requisite job of given ..
Basic properties that cutting must posses are: Tool material must be at least 30 to 50% harder than the work piece material. Tool material must have high hot hardness ..
The method of adhering or welding of microchips or powdered particles present during machining to the rake face of the cutting tool is called built up edge (BUE). ..
The elements of tool signature or nomenclature of single point cutting tool is illustrated in the figure below (i) Back rake angle: Back rake angle is the angle ..
The tool life can be defined in three different ways. The actual machining time between two successive regrinding of a cutting tool is called tool life. It is most ..
The tightening tools include pliers, screw driver and wrenches, which are discussed as under. 1. Pliers Pliers are namely ordinary needle nose and special ..
Various types of stakes are used to form the metal sheets into different types of shapes. The stake is a sort of anvil, which supports the sheet for sheet metal ..
Whenever the tool is not performing the machining operation satisfactorily, then there is a failure of cutting tool. The following draw backs are observed if the tool ..
A Hammer is a mechanical tool that delivers a sudden impact to an object. Commonly hammers are used to drive nails, fit parts, forge metal and break apart objects. ..