Suresh Kumar is a passionate mechanical engineer with deep expertise in design, thermodynamics, manufacturing, and automation. With years of experience in the industry, they simplify complex engineering principles into practical insights for students, professionals, and enthusiasts. This blog serves as a hub for exploring cutting-edge innovations, fundamental concepts, and real-world applications in mechanical engineering.
Introduction: Contain degree of surface finish is required for the proper functioning of the working surface. Types of surface finish: Nominal surface Rough surface Wavy surface Elements of surface texture: Surface roughness Profile…
Introduction: Gears are mechanical drives. Gears are used to transmit power. Gear in the form of a toothed wheel. Types of gears: Spur gear Helical gear Spiral gear Bevel gear Worm and Worm wheel Rack and pinion Gear terminology:…
Introduction: Thread geometry procedure cannot be used in normal production work Hence gauges are used where the basis is mating o surfaces. Thread gauge classification: First group Second group Form of thread gauges: Plug ring gauges Ring screw gauges Caliper screw gauges…
It is the simplest angle measuring instrument. A simple vernier bevel protractor with its various elements is shown in fig.2.27. The body of the bevel protractor is designed in such a way that its back is flat and there are no projections beyond its back. The base plate is attached to the main body and an adjustable blade is attached to a circular plate containing vernier scale. The main body carries a main scale graduated in degrees. The adjustable blade which is capable of rotating freely about the centre of the main scale engraved on the body of the instrument can be locked in any position. An acute angle attachment is provided at the top. The base of the base plate is made flat so that it could be laid flat upon the work piece. The blade can be moved along throughout its length and can also be reversed. The acute angle attachment can be readily fit into the body and clamped in any position. Universal Bevel protractor: The protractor dial is slotted to hold a blade which can be rotated with the dial to the required angle. It can also be adjusted independently to any desired length. The blade can be locked in any position. This instrument is capable of readings precisely within 5 minutes. Optical Bevel protractor: This instrument is capable of taking readings within 2 minutes of an arc. The interval circular scale is graduated in divisions of 10 minutes of arc. Readings are taken with the help of optical magnifying system which is an integral part of the instrument. Uses of Bevel protractor: The bevel protractors can be used to test the flatness, squareness, parallelism, straightness, angular measurements, etc. Types of…
It is the most convenient and accurate design for heavy work piece. The equipment consists of a self contained sine bar hinged at one roller and mounted on its datum surface. The table is quite rigid one and the weight of unit and work piece is given fuller and safer support. The sine bar may be safely swung to any angle from 0 to 90 by pivoting it about its hinged end.
