Three often overlooked perspectives in aluminum cast gravity casting.

To avoid panic just before mass production: Three points to note observed on-site in gravity casting.

In aluminum gravity casting, it is important not only to meet strength requirements but also to focus on comprehensive quality design that includes precision and appearance. Even if there are no issues on the drawings, there are often points that can only be noticed when seeing the actual product during prototyping or mass production preparation. In this project, we adopted a manufacturing process that combines gravity casting and machining, collaborating with casting and machining vendors from the design stage. Three key points emerged that require particular attention. The first is the ejector pin marks. Even if there are no issues in terms of strength, a slight protrusion can lead to an appearance that feels off. The second is burrs. They may not be noticeable immediately after casting but can appear as defects after surface treatment. The third is the management of geometric tolerances. Subsequent processes, such as inserting helicoils, can affect precision, such as symmetry. In gravity casting, prior alignment with a view of the entire process is key to stabilizing quality. If you are considering castings, please feel free to consult with us. *Such efforts are just a small part of what Bandai does on a daily basis. Please take a look at the value we can provide to our customers.

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