WBM has been devoted to supply the competitive price, excellent products and high-quality solutions. WBM also has their own factory, providing solid mental balls.
Metal balls are rolling, spherical elements that exhibit greater strength and toughness than plastic and ceramic balls. They have a sufficient hardness for many industrial ball applications, and most products are electrically conductive. Some steel, nickel, and cobalt balls can be magnetized. Metal balls made from certain alloys can also provide corrosion resistance and refractory resistance.
Metal balls are manufactured in a series of steps. First, bar stock pieces are forged into rough ball shapes or preforms. The forging flash is removed by rough machining or soft grinding. For some steel balls, hardening is achieved through a quench and tempering heat-treatment process. Nonferrous alloys and products made of austenitic stainless steel skip this quench and tempering step. Different heating treating or homogenization processes are used for certain nonferrous alloys and specific grades of stainless steel grades.
Finally, the metal balls are precision-finished through hard grinding, lapping, and polishing. The balls are then treated with and lubricant or rust-preventive, inspected, and packaged. The precision finishing step brings the balls into design or grade dimensions. Form specifications such as diameter, sphericity and surface finish are achieved by removing cuts, scratches, scuffs, and other breaks in surface continuity.
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