Project secondary finishing 4 PDF

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Six degrees of freedom: Six degree of freedom is one of the most important concepts in kinematics, this means how many variables is needed to position a mechanism in a space, you can work this out by the angle of members. The can have three transitional motions they are X, Y and Z. Also you can get three rotational motions X, Y and Z. There’s are the six degree of freedom to deuterium its positions. Rigid body in a plane can only have three degrees, they are X and Y in the transitional motion and Z in the rotational motion. This steel beam shows the six degrees of freedom

This rigid plane should three degrees of freedom which has been explained above.

Generation and forming: Forming is the process of a raw material such as metal which is formed by applying force to an object to change it to a component or the shape of that object. The process of forming can be controlled with the use of tools such as punches or dies.

Task 3/4 EDM EMD stands for electrical discharge machining; this process is basic EDM process is really quite simple. An electrical spark is created between an electrode and a work piece. The spark is visible evidence of the flow of electricity. This electric spark produces heat with temperatures reaching 8000 to 12000 degrees. Sparking machines can do park eroding, burning, die sinking, wire burning or wire erosion, is a manufacturing process whereby a desired shape is obtained using electrical discharges (sparks).

Wire cutting EMD The wire-cut EDM is a discharge machine that uses CNC movement to produce the desired contour or shape. It does not require a special shaped electrode; instead it uses a continuous-travelling vertical wire under tension as the electrode. The electrode in wire-cut EDM is about as thick as a small diameter needle whose path is controlled by the machine computer to produce the shape required.

Wire EDM Dielectric Fluids The dielectric fluid must be circulated under constant pressure to flush away the metal particles and assist in the

machining or erosion process. If red sparks occur during the 3 cutting operation, the water supply is inadequate. To overcome this problem, increase the flow of water until blue sparks appear....