With the increasing demand for quality in precision casting, there are certain requirements for precision machining of blanks during the machining process. Next, precision casting manufacturers will share with you the requirements for precision casting on the blank:

1. Material and mechanical properties of precision cast parts: The process characteristics and mechanical properties of the parts roughly determine the type of blank. For example, steel billets for cast iron parts; Ordinary bars are used for steel parts with simple shapes and low requirements for mechanical properties; For important steel parts, forgings with good mechanical properties should be selected. When the shape is simple, cast steel should be used. The materials are complex and do not require high mechanical properties. Commonly used profiles or billets for non-ferrous metal parts can be used.

2. The structural shape and size of the parts: large and simple blank parts are mainly used for sand casting or free forging, complex blank parts are mainly used for casting, a small part of the blank can be used for die forging or pressure, and blank steel parts are mainly used for forging; If the diameter of the steps is not very large, they can be used on the bars; If the size of each step changes significantly, forgings should be used.

3. Existing production conditions: When determining steel billets, specific production conditions must be considered, such as the actual level and capacity of on-site production and the possibility of outsourcing, otherwise it is unrealistic.

4. Fully utilize new technologies and materials: In order to save materials and energy, and improve processing efficiency, casting methods and materials such as precision casting, precision forging, cold rolling, cold extrusion, powder metallurgy, special-shaped steel, and engineering plastics should be fully considered. In this way, even without mechanical processing, the quantity of mechanical processing can be greatly reduced. The economic benefits are obvious.