Part material: First determine the material of the part, such as metal (such as stainless steel, aluminum alloy), plastic, composite materials, etc. The processing properties and process requirements of different materials are different, so it is necessary to choose the appropriate processing method.

Shape and size: Specify the shape, size and tolerance requirements of the part. This helps to determine the required machining process and machining accuracy.

< P > Production batch: Know the production batch of parts in order to choose the processing technology suitable for large-scale production or small batch production.

Performance requirements: Consider the mechanical properties of the parts, corrosion resistance, wear resistance and other requirements, which may affect the selection of processing methods and subsequent heat treatment, surface treatment and other links.