Advantages of using sand casting
Almost Every Alloy:
Sand molds can easily make on almost any ferrous or non-ferrous alloy. Other molding processes melt and mix superalloys in a vacuum, but this is usually not done as a seven molding. Some materials can not “inserted” and must be made as a molding. sand casting manufacturer
2. Costs for empty tools:
The relatively low cost of tools makes sand casting a process of choice for a small number of needs. The patterns are arranged so that the material chosen for the pattern (usually wood, plastic or metal) depends on the intended use of the manufactured part. Although not necessarily cheaper in the short term, the use of mechanical (or “patternless”) molds may be a cost-effective option for parts that are expected to consume less.
3. Universal size, weight, shape:
Sand molds can be produced in weights from ounces up to 200+ tons. Internal structures can be created using cores. Shaped parts rely on the designer’s imagination. However, most seven moldings require at least some mechanical surfaces due to the natural limitations of the licensing process or the need to interact with other components.
4. Each quantity:
Because tool costs can small, sand casting may be suitable for one piece production. On the other hand, there are auto-components made by this process, so they can also be used in high-volume applications. Other structural elements and tolerances are often more important than the amount of their selection than the required molding process.
5. Timing:
The molding process itself may faster than others as investments decline, but it is important to consider post-casting processes. Such as the required processing, when calculating total delivery times.
Concerns about sand casting
1. Low dimensional accuracy:
Uncooked molding can provide better dimensional accuracy. And repeatability than green sand molding, but this process will generally provide less precision than other conventional molding processes.
2. Standard maintenance:
Although it costs less than tools for other casting processes, there is still the art of creating patterns. Standards can be so large that storage needs to manage. This is especially important because shaping is rarely done. No patterning can reduce some of the problems associated with cartridge storage. And maintenance.
3. Finished on the surface:
Sand moldings are likely to have a much better finish than other molding processes. This point can questionable if some surfaces still machined or if the surfaces are acceptable in the casting state. The following is a comparison of the relative highest surface finishes that can be expected from different pressing processes:
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