lip 52 in relation to molten metal surface 65 may be varied in relation to the number of revolutions per minute at which auger assembly 45 is rotated auger assembly 45 is preferably not rotated at a speed which approaches the speed at which substantial quantities of atmospheric gases will be included into the downward spiraled flow of the metal therethrough an alternate embodiment of the light gauge metal scrap melting system is shown in fig9 and 10 in this alternate embodiment auger 11 is used however a slightly different design of auger drum 69 is used in that it is merely a hollow cylindrical section shape with a straight inner bore 71 but with no counterbore similar to counterbore 39 the inner bore 71 is sized to be slightly larger than the outer edges 29 of blades 13 auger drum 69 is stationarily mounted within melting chamber 53 being fixed to walls 57 by mounting spacers 73 about as shown in fig9 mounting spacers 73 should be made of a refractory or other material which has similar heat resistant properties to those of walls 57 auger drum 69 may be constructed of materials similar to those used for auger drum 35 but.