HIGH WEAR RESISTANCE ALUMINUM BRAKE DISC ROTOR TREATED BY A PLASMA TRANSFERRED ARC WELDING AND METHOD FOR MANUFACTURING THEREOF

摘要

The present invention relates to a brake disc rotor and a method of manufacturing the same, casting aluminum alloy into a brake disc rotor using sand casting or die casting, and inspecting the appearance of castings of the brake disc rotor for foreign substances or bubbles. And then selectively compounding only the surface of the friction part with the brake pads, and the brake disc rotor subjected to the compounding process is subjected to surface processing using a polycrystalline diamond tool or a carbide tool by lathe machining. It features.;According to the present invention, it has a weight reduction effect of about 60% compared to cast iron products, and exhibits a wear resistance equal to or higher than cast iron by surface hardening. In addition, the total weight of expensive reinforcing additives can be reduced by selective surface treatment, while achieving the same purpose of weight reduction as compared with the aluminum composite material by the conventional stirring casting method, and the processing cost is minimized by minimizing the area of difficult machining parts. Has the effect of reducing.