corrugations are 36 mm in width and 1 3 mm in depth and take the shape of a plurality of segments of smooth arcs see fig2 the drum manufactured according to the method is denoted as a group 3 the 7cr13 superhard wear resistant alloy is evenly coated on the surface of the drum from group 3 with an electric arc spraying technology to from a rough wear resistant coating with the thickness being 0 3 mm to 0 5 mm and the drum is denoted as group 4 the surface of the carbon steel drum with the diameter being 2000 mm and the width being 450 mm is subjected to machining to form lines and the specific dimension of the lines is as follows cyclic corrugations are distributed along an axial direction on the surface of the drum in one cycle on the outer surface the corrugation is composed of a concave arc and a convex arc which are tangential in ends and equal in diameter the corrugations are 36 mm in width and 2 mm in depth the drum manufactured according to the method is denoted as group 5 the drums from the above groups 1 to 5 are mounted on a wheel road simulating bench to simulate road surfaces with the surfaces of the drums wheel tyre assemblies are pressed on the surfaces of the drums and a.