This method allows precise control of the filling process. Injecting molten metal in this way reduces oxide formation and reduces porosity, ensuring excellent top-to-bottom consistency. As a result, low pressure casting molds produce excellent density and strength values ​​as well as excellent dimensional accuracy. While this method is ideal for simpler, symmetrical shapes, more complex geometries can be achieved by using sand cores in the mold. With simple mechanical and technical advantages, the low pressure die casting process is very Suitable for automation.

Automotive industry and others

For decades, the automotive industry has relied on low-pressure die-casting to make strong, high-quality aluminum castings. However, due to its relatively slow casting process, its use is largely limited to luxury models in the automotive market, which are expected to be low-volume and high-cost. Now, however, after successfully finding ways to make this method more cost-effective (for example, making machines overall larger, but saving space due to their vertical construction), the automotive industry has reduced casting cycle times by 50% percentage, making low pressure casting a more economical option than before.

While low pressure casting is a particular choice for automotive components such as engine blocks, wheels, and suspension components, non-automotive industries such as electronics, machine building, and plumbing assemblies also benefit from its lower machining costs, high throughput, and superior metallurgy Quality. The excellent electrical and thermal conductivity of cast aluminum makes it ideal for all of these industries.

Alternative

There are several ways to replace molds for low pressure casting. One such alternative is sand casting, which accounts for the vast majority of metal casting. By forming a mixture of sand, clay and water around complex shapes, molds can be created, filled with molten metal , and decomposes after the casting solidifies. The high temperature properties of sand make it an excellent forming method. Investment casting is another option. Today, investment casting is favored by many industries for its accuracy and versatility Favored. Another alternative to low pressure casting is gravity casting (or permanent mold casting). The simple process of filling a hollow mold with molten metal and letting gravity flow into each groove of the mold, gravity casting has several advantages, such as smooth surface, excellent dimensional accuracy and faster production times. The gravity die casting process is ideal for the automotive industry.