The casting process is a long and daunting task. Casting is when liquefied material, such as molten metal, is poured into an open space called a mold which has been formed using a pattern. It is then left to cool and harden. The newly formed shape is then removed from the cast or mold and then sent off for finishing touches. The casting process is used in any industry which uses metal parts. Examples of these industries include the automotive and engineering industries.
Hot forming processes such as die casting, investment casting, plaster casting and sand casting all have their own fabrication benefits and drawbacks. Some techniques are cheaper than others while some, such as air casting, will create a smoother finish than techniques such as green casting. An expert should be able to tell what casting process was used just by looking at the unpolished product.
You get many different casting processes here are just a few with a short listing of some of the advantages of the technique.
• Sand Casting
• Investment Casting
• Plaster Casting
• Die Casting
Advantages of Sand Casting
• Relatively inexpensive production costs, especially in low-volume runs.
• The ability to fabricate large components.
• A capacity for casting both ferrous and non-ferrous materials.
• A low cost for post-casting tooling.
Advantages of Investment Casting
• A high degree of accuracy and precise dimensional results.
• The ability to create thin-walled parts with complex geometries.
• The capacity for casting both ferrous and non-ferrous materials.
• Relatively high-quality surface finish and detail in final components.
Advantages of Plaster Casting Duplicate title?
• A very smooth surface finish.
• The ability to cast complex shapes with thin walls.
• The capacity for forming large parts with less expense than other processes, such as investment casting.
• A higher degree of dimensional accuracy than that of sand casting.
Advantages of Die Casting
• Close size and shape tolerances.
• High component dimensional consistency and uniform design.
• A reduced need for post-casting machining
The casting process used will depend on the desired outcome and how accurate the finished product needs to be.