{"id":1913,"date":"2020-05-15T03:23:01","date_gmt":"2020-05-15T03:23:01","guid":{"rendered":"http:\/\/alalloycasting.com\/?p=1913"},"modified":"2026-07-30T03:11:19","modified_gmt":"2026-07-30T03:11:19","slug":"gravity-die-casting-process","status":"publish","type":"post","link":"https:\/\/www.alalloycasting.com\/fr\/gravity-die-casting-process\/","title":{"rendered":"Proc\u00e9d\u00e9 de moulage sous pression par gravit\u00e9"},"content":{"rendered":"

What Is Aluminum Gravity Die Casting?<\/h2>\n

Aluminum gravity die casting is a metal casting process where molten aluminum fills a reusable mold under the force of gravity<\/strong> rather than being injected under high pressure.<\/p>\n

Unlike pressure die casting, this process does not rely on a high-speed injection system. Instead, molten aluminum is carefully poured into a preheated metal mold, where it fills the cavity, cools, and solidifies into the required shape.<\/p>\n

In a broad sense, gravity casting may include several processes such as sand casting, permanent mold casting, and lost foam casting. However, in the aluminum industry, gravity die casting usually refers to permanent mold casting using steel molds<\/strong>.<\/p>\n

The mold is typically made from heat-resistant alloy steel, allowing repeated use and providing better dimensional accuracy and surface quality compared with traditional sand casting.<\/p>\n

\"What
What Is Aluminum Gravity casting<\/em><\/figcaption><\/figure>\n

How Does the Aluminum Gravity Die Casting Process Work?<\/h1>\n

The aluminum gravity die casting process generally includes the following steps:<\/p>\n

1. Aluminum Melting and Melt Preparation<\/h2>\n

Before casting, molten aluminum quality plays a critical role in determining the final casting performance. During melting and holding, hydrogen gas and oxide inclusions can be absorbed into the melt, leading to common casting defects such as:<\/p>\n