With the ever-changing trends in technology, manufacturers are looking for cheaper and faster ways of producing machined parts or products. One of the great options at their disposal is vacuum casting.
The process is all about using the precise and exact temperature to cure materials, to cut the shrinkage accurately and precisely, the resin material should be about 30 degrees while the mold pressure should be 60 degrees or more.
Vacuum casting is all about getting the optimal temperature and the results will be amazing, the final product produced from the mold does not require further finishing, just imagine how amazing is that.
For those who want to know how to take full advantage of Vacuum casting, stay glued to this article to know more about the manufacturing technique.
Vacuum casting procedure
Vacuum casting is also commonly known as Vacuum duplication, in simpler terms it means the injection of resin into a mold made of silicone materials. The manufacturing technique comprises two processes: Creation of the mold and injection of the resin/material creating a finished product/prototype.
The technique is a type of low-volume manufacturing with the capabilities of producing 10-100 machined parts form a single mold. The process is best suited for pre-series production as it creates an identical replica of the master model.
The end-product is mainly used by designers and engineers in mechanical and visual testing during the product development phase.
Advantages of Vacuum casting
For novices or beginners, you might wonder how to vacuum casting is superior compared to conventional methods of production. To shed some bit of light, here are some advantages that your firm will enjoy after incorporating this technique.
Low production cost and fast turn-around time
Vacuum casting primarily uses silicone to create a mold which is a bit cheaper compared to other metals such as aluminum or steel. The use of silicone allows the manufacture of ten to a hundred parts using a single mold making it economical compared to 3D printing.
For those on a tight deadline, you’ll be glad to know that the entire take approximately 7-10 days to create more than 50 prototypes making it a suitable choice for tight deadlines.
Excellent precision of final products
As a result of using silicone to produce molds, the finished part produced will be the exact copy of the original model. This ensures the finished product has all the finer details and features of the original product.
Production of high-quality parts
The resin used creates identical replicas, engineers and designers can choose a material that is close to the original product. With regards to coloring, its always recommended being done en masse.
The process allows the creation of molds such as brass inserts which enables the use of finishing services.
Limitations of the casting process
There is no production technique that does not have its limitations and vacuum casting is not any different. The molds have a limited shelf life in comparison to injection molds.
The process produces a limited number of molds, but this can be a casting process is geared towards low volume production.
Unlike 3D printing, vacuum casting requires a bit of investment as the procedure needs an original model. In comparison to other prototyping methods, vacuum vesting is cost-effective and its benefits outweigh the disadvantages.