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EFFECT OF PROCESS PARAMETERS
High voltage gives high velocities in the electron beams. The mutual repulsion effects in the constituent electrons will be less marked at high velocities than at low velocities. Therefore, the higher the voltage, the sharper the possible focus. The sharper the possible focus, the deeper the penetration for a given power. The longer the working distance, the greater the depth of field, and greater the focus tolerance. This of course is related to convergence of the beam in respect to the work piece. High voltage beams have a narrower angle of convergence than low voltage beams. As penetration in a material is proportional to the energy density during welding, surface speed will also affect penetration. The slower the speed, the greater the penetration, however, if the speed is too slow the entire work piece will heat up and a massive heat affected zone will result. Therefore the lowest practical speed is limited to around 250 mm per minute. The factors, which influence weld depth, are as follows:
normal stress in beam
Armature core and armature winding Armature is the rotating part of the machine. It is cylindrical in shape with slots on its outer periphery. It houses the armature conducto
A centrifugal clutch is to be prepared to transmit 15 KW at 900 r.p.m. The shoes are four in number. The speed at which the engagement begins is 3/4 th of the running speed. The in
Maximum shear stress and angle of twist: Torques are applied on the shaft as illustrated in Figure. Discover in which portion of the shaft, maximum shear stress & angle of twi
Product Holon The product holon serves as the knowledge base for the manufacturing system. This can be portrayed like an information server to the other holons concerned in the
(Hint Minimization problem -min X1 + X2, s.t. 2X1 + X2 = 12, X1 + 6X2 = 24, 5X1 + 8X2 = 24; X1, X2 = 0).
explain in detaile about PART PRINT ANLYSIS)
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Introduction Fault tolerance is very important for aircraft flight control. The majority of the faults occur in the sensors and actuators onboard the aircraft. Once a fault
How can I achieve a back and forth movement of carriage system. How can I reverse the motor to go back and forth.
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