Mold design is one of the most crucial aspects of the die casting process. It is employed in the die cast process to evaluate the status of the product and to prevent the occurrence of any kind of defects. Improving the mold design is the most effective way to obtain the desired results in the casted components and to minimize any defects. Cold laps is one of the commonly occurring defects during the die casting process.
Cold laps occur when two or more flows happen in the mold that results in an incorrect blending of the material injected. The occurrence of cold laps in the mold can result in numerous issues on the aesthetic and physical feature of the component.
On the physical aspect, the presence of cold laps can lead to a lowering of mechanic resistance mainly in functional components. It appears as carvings on the product and can further cause them to develop cracks and fractures in the surface.
Optimizing the mold design can lead to the reduction of cold laps and many other defects in the casted components. Suitable adjustments in the mold design phase can help avoid many of the common defects including cold laps. Below are some of the key procedures in mold design that will eliminate cold laps.
Preventing More than One Filling Flows
This phase in mold design is utilized depending upon the components produced. One of the key factors for cold laps is the creation of more than one flows of filling in the mold. This can be corrected by adjusting the gates as well as the product shape. By carrying this out, the creation of more than one filling flows can be prevented inside the mold that will minimize the occurrence of cold laps.
Minimizing Temperature Exchange
Minimizing the temperature exchange is also another method to reduce cold laps from occurring in a component. This will aid in reducing the temperature exchange that occurs among the various elements used in the die casting process. By minimizing the temperature, the filling velocity can be increased and the temperature exchange can be decreased that happens in the surfaces. This would enable the die caster to make adjustments on the mold thermal conditioning.
Making Overflow and Temperature Variations
The project phase allows concentrating the overflows that happen in the crucial areas of the mold. Draining out the colder material front the rough part of the overflow is one solution. Working on the temperature variables is also an effective way to avoid cold laps.