The invention discloses a method for preparing high-
hardness and high-
toughness abrasion resistant balls through
laser cladding. The method comprises the following steps that
scrap steel, chrome steel,
rare earth alloy,
manganese steel,
molybdenum steel,
vanadium steel,
tungsten residues,
silicon iron,
titanium ingots,
zirconium ingots, aluminum ingots and
magnesium ingots are smelted, so that
liquid alloy is obtained; ball billets are obtained by pouring the
liquid alloy; tempered balls are obtained by conducting heat treatment on the ball billets; and
laser cladding is conducted with Fe-based
alloy and wolfram
carbide (WC)
powder serving as cladding
powder after the tempered balls are cleaned, and the high-
hardness and high-
toughness abrasion resistant balls are obtained. The Fe-based
alloy comprises C, Cr, Co, Ni, Mo, Ti, V and B. The power of
laser cladding is 2500-3000W. The
diameter of a
light spot is 3-5 mm. The movement speed of the
light spot is 10-15 mm / s. The thickness of a cladding layer is 5-10 [mu]m. According to the method for preparing the high-
hardness and high-
toughness abrasion resistant balls through laser cladding, the process is simple, conditions are easy to control, and an obtained finished product is high in hardness, good in toughness and long in service life.