Overview of Mechanical Machining

Nov 29,2021

Production Process and Technological Process

The production process refers to the entire sequence of activities that transforms raw materials into finished products. It encompasses the preparation, transportation, and storage of raw materials, as well as production setup, the creation of semi-finished components, and the subsequent machining and heat treatment of these components to turn them into individual parts. These parts and assemblies are then assembled into the final product. Additionally, the process includes quality inspections, operational testing, and adjustments of the machinery, followed by painting and packaging.

The manufacturing process refers to the series of steps involved in transforming a production object—by altering its shape, relative positioning, and inherent properties—into either a finished or semi-finished product. For mechanical products, the manufacturing process can be further divided into processes such as casting, forging, stamping, welding, machining, heat treatment, assembly, and coating. Among these, the processes directly responsible for turning raw materials into finished goods are known as the "direct production process," which forms the core component of the overall manufacturing workflow. In contrast, activities that indirectly contribute to the transformation of raw materials into products—such as production planning, transportation, storage, and maintenance of machine tools and process equipment—are classified as the "auxiliary production process."

The manufacturing process in mechanical engineering typically includes the machining process for individual parts and the assembly process for the machines themselves.

The mechanical machining process (hereafter referred to as the "machining process") refers to the technological procedure in which raw materials are directly transformed—through mechanical cutting methods—into qualified parts by altering their shape, size, relative positioning, and material properties. Broadly speaking, processes such as electrical discharge machining, ultrasonic machining, and electron/ion beam machining also fall under the category of machining processes. The machining process directly determines the quality of both individual parts and finished mechanical products, significantly influencing product costs and production efficiency, making it a critical component of the entire manufacturing process.

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