In electric arc wire spray process, the atomizing air pressure is the only significant variable for controlling the surface layers.(a) True(b) FalseThis question was posed to me in an international level competition.Query is from Salvaging Techniques topic in chapter Salvage of Defective Castings of Casting-Forming-Welding I

In electric arc wire spray process, the atomizing air pressure is the

1.	In electric arc wire spray process, the atomizing air pressure is the only significant variable for controlling the surface layers.(a) True(b) FalseThis question was posed to me in an international level competition.Query is from Salvaging Techniques topic in chapter Salvage of Defective Castings of Casting-Forming-Welding I
Answer» The correct option is (a) True Easiest explanation: Electric arc wire SPRAY process normally used within the ranges of about 100-500 amps of electric current and an AIR PRESSURE of about 1.3-5.5 bar to ATOMIZE the molten wire metal and to propel droplets into contact with the defectively cast AREAS. And the atomizing air pressure is the only significant variable for controlling the surface layers of castings.

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