Die Casting Considerations
Several foundries and fabrication shops seek the help of experienced die casting companies to produce metal castings, which closely adhere to their desired design specifications with least number of flaws and other issues. It is crucial to note that some of the defects in a final product could not be avoided, as most of the metals shrink to a certain degree when they cool.
When a metal or component experiences shrinkage, the quality of the entire finished product is at risk. This is because the component that is subjected to shrinkage will undermine the integrity of the entire finished product. As a result, the final product may even break if they experience a severe amount of pressure.
Fortunately, expert die casters from professional die casting companies incorporate several procedures and processes that help them to significantly reduce the chances of such defects. Therefore, it is best to seek the help of experienced die casters, because it will ensure that your final product is of superior quality and free from defects.
Two of the most common porosity problems that have become a major concern for die casters and metalworkers are gas porosity and shrinkage porosity. Shrinkage is one of the most common defects that affects die casting components and it appears in the form of small cracks and holes on the die casting component.
These holes and cracks may seem round when you look at the die cast from a distance. However, if you take a close look at these holes, you will be easily able to identify that they are angular in shape. These types of holes and cracks are susceptible to shrinkage, which means that you will need to fix these defects as soon as possible.
Shrinkage porosity and related issues can be easily eliminated by modifying the mold or by modifying the die casting machines parameters. In addition to that, expert die casters also put in extra efforts to ensure that the molten flow into the cavities is uniform. This in turn helps them to reduce or prevent the chances of shrinkage defects in the final die casting product.
Finally, you should be aware of the fact that inexperienced and amateur die casters might not have access to tools that help them to prevent the occurrence of such defects. That is why, it is best to hire a professional die casting company.