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investment casting tolerance

• Posted by jiachuan casting May 31, 2022 Filed in Business #investment casting tolerance  19 views
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  Investment casting tolerance refers to the size range that investment casting can meet. There are various investment casting processes, such as water glass lost wax casting, lost foam casting and sol casting. . Each casting process has its own way of casting molding, which is suitable for different types of products. Tolerances can be affected by a number of factors. For example, mold temperature, wax or plastic temperature, injection pressure, mold or housing composition, back-up sand, firing temperature, cooling rate, position of the part on the "tree" and heat treatment temperature all directly affect the required tolerances. Investment casting industry. Although the investment casting industry has tolerance standards, it varies by foundry, some may specialize in thin-walled small parts, while others may be more specialized in larger parts. And equipment may also have a certain impact on casting tolerances.

  Generally speaking, we can divide investment casting tolerances into linear tolerances and geometric tolerances.

  Linear tolerance
  Linear tolerances are commonly applied to the following features of investment castings: length, concentricity, fillet radius, hole, flatness, straightness, corner radius, and curved hole. And the linear tolerance of each casting process is different. For example, water glass lost wax casting can control the general linear tolerance between CT7-CT8, lost foam casting can reach CT8-CT9, and the tolerance of silica sol casting is the most accurate, it is CT5-CT6.

  geometric tolerance
  Geometric tolerances are commonly applied to the following characteristics of investment casting: flatness, straightness, parallelism, roundness, hole tolerance, curved holes, inner radius, and fillet, etc.

  Investment casting tolerance in jiachuancasting
  jiachuancasting can provide investment castings with excellent tolerances and confirms that each provided casting is within the allowable tolerances. We always follow tight tolerance standards to ensure that all investment castings in our foundry are accurate and do our best to avoid or minimize further processing, resulting in cost savings for our customers. The core of our business is to provide high quality metal castings with the most precise dimensions.

  Even if you cannot provide the given tolerances after casting, our machining capabilities will help meet the desired effect. Contact our investment foundry and we will discuss your part's tolerance issues in detail.