Which process transforms liquid into molded shapes?

The process that transforms liquid into molded shapes is known as casting. In casting, a material is first heated until it becomes liquid, allowing it to flow easily. Once in a liquid state, the material is poured into a mold that has been shaped to create the desired final form. After the liquid cools and solidifies, the mold is removed, revealing the finished part.

Casting is widely used in various industries because it allows for the creation of complex shapes and designs that would be difficult or impossible to achieve through other manufacturing methods. This process is essential in producing items like metal components, engine blocks, and intricate sculptures.

Welding involves joining materials, typically metals or thermoplastics, through the application of heat, but does not transform liquid into molded shapes. Milling is a machining process used to remove material from a workpiece to create specific shapes, not to mold liquid. Grinding is another finishing process that smooths surfaces but does not involve the transformation of liquid materials at all.