Casting Design of Automotive Brake Drum Castings

Drum brakes and disc brakes are the two main braking methods used in most car models. Trucks mostly use drum brakes because their braking force is stronger than disc brakes and their cost is lower. Disc brakes have lower braking force than drum brakes, but they have higher sensitivity and better heat dissipation.

The application of a horizontal automated casting molding machine in the automated casting molding production of this brake casting has certain limitations, and is suitable for brake drum castings with a height of less than 230mm. For this type of casting, the mold needs to have a certain demolding angle. In the casting production of this brake casting, the majority of casting enterprises mainly use a multi contact compacted box static pressure molding line, which can cover the casting production of various types of drum brakes. In terms of efficiency and molding effect, it has more advantages compared to our horizontal parting automatic molding machine. Of course, the initial investment of its molding line is also relatively large;

In some of the automotive parts casting enterprises we provide services to, users may also encounter the need to use horizontal parting automation molding machines to balance the casting molding of some brake drum castings. As shown in the picture, the mold depth is 185mm. We use the concave convex design of the mold to reduce the overall height by 40mm, thereby reducing the difficulty of sand shooting during molding; After compaction, the compactness of the sand mold can also reach about 80, which can meet the pouring conditions of the metal iron liquid of the sand mold, and the molding speed is 46 seconds the first mock examination;