The angle formed between the cut surface and a theoretical plane perpendicular to the plate surface. Plasma arc cutting tends to remove more metal from the top than from the bottom, producing a cut angle. (Also referred to as bevel angle).
Welding Tech
A measure of the degree of arc constriction achieved with a plasma torch. The amperes per square inch of a cross-sectional area of an electrode. High current density results in high electrode melt-off rate and a concentrated, deep penetrating arc.
The amount of electric charge flowing past a specified circuit point per unit time Current is the main parameter for welding and has to be chosen to plate thickness and welding speed with respect to the weld quality. The weld current affects penetration and deposition rate. A high current results in a higher and narrower weld with a greater penetration depth. Too high a welding current can result in undercuts, an uneven weld convexity, burn-through, thermal cracking, an inappropriate merging angle with the body material and undercutting.
Extremely low temperatures usually associated with liquified gases in the range of -100øF to -400øF.
Refers to low temperatures, usually -200 o (-130 o) or below.