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SHIELDING GASES
Shielding gas is directed by the torch to the arc and weld pool to protect the electrode and the molten weld metal from atmospheric contamination.
Argon and helium or mixtures of the two are the most common types of inert gas used for the shielding. Argon hydrogen mixtures are used for special applications.
Projection Welding This is a modified method of making single or multiple spot welds. Projection welds are made by providing an embossment or projection on one or both of
Forecasting System Outputs: In a company, inventory level is reviewed biweekly. If the parts used in an assembly have the lead time of one and a half week, what period should
Illustrate six typical application of primary cells. (b) Illustrate six typical applications of secondary cells. (c) Illustrate the advantages of a fuel cell over a conventional
MANDATORY CHECKS DURING THE FIRST SIX SERVICES Various steps in servicing of motorcycle are given below in a tabular form. 2.3.1 First Service and Second Ser
Q. Explain Sand and moulding sands? Sand according to the amount of clayey matter they contain, the moulding sands are classified as: • Silica sand: Up to 20% clay. •
Manufacturing Process For Reinforced Plastic Parts Two processes that are open mould and close mould are commonly utilized for manufacture of reinforced parts. Hand layup proce
Steam turbine comprises of stages, number and size of the stages depends upon the break horsepower of the turbine. The stage has set of moving and fixed blades. The moving blade
wire-frame entities-representing ellipse and parabolas
how many types of kinematics
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