The process flow of large-scale machining primarily refers to the steps involved in manufacturing and processing a workpiece or part. During these operations, machining methods are primarily used to directly and effectively change the shape, size, and surface quality of the blank, transforming it into a part. This is called the machining process. For example, the machining process for a typical part is rough machining - finishing - assembly - inspection - packaging, which is a general process flow.
The process flow of large-scale machining is based on the process flow, effectively changing the shape, size, relative position, and properties of the product to produce a finished or semi-finished product. It is a detailed description of each step and process. For example, as mentioned above, rough machining may include blank manufacturing and grinding, while finishing may include turning, benchwork, milling, etc. Each step requires detailed data, such as the required roughness and tolerance.
Large-scale machining effectively determines the process to be used based on the number of products, equipment conditions, and worker quality. This information is then documented in a process specification, which is more targeted. Each factory may have different procedures due to varying circumstances.
A large-scale machining procedure is a process document that specifies the machining process and operating methods for parts. It documents the most reasonable process and operating methods under specific production conditions, written down in a prescribed format. After approval, it is used to guide production. Machining process procedures generally include: the workpiece machining route, the specific details of each process step and the equipment and process equipment used, workpiece inspection items and methods, cutting parameters, and time quotas.
In the process of developing a large-scale machining process, effective adjustments are often made to previously determined details to improve economic efficiency. However, during the implementation of the process procedure, unexpected circumstances may arise, such as changes in production conditions, the introduction of new technologies and processes, or the use of new materials and equipment. These factors all require timely revision and improvement of the process procedure.
