在大连机械加工生产历程中，，，通常改变生产工具的形状、尺寸、位置和性子等，，，使其成为制品或者半制品的历程称为工艺历程。。它是生产历程的主要部分。。工艺历程又可分为铸造、铸造、冲压、焊接、机械加工、装配等工艺历程，，，机械制造工艺历程一样平常是指零件的机械加工工艺历程和机械的装配工艺历程的总和，，，其他历程则称为辅助历程，，，例如运输、保管、动力供应、装备维修等。。工艺历程又是由一个或若干个顺序排列的工序组成的，，，一个工序由有若干个工步组成。。

In the process of mechanical processing and production in Dalian, the process of changing the shape, size, position, and properties of the production object to make it a finished or semi-finished product is called a process. It is a major part of the production process. The manufacturing process can be divided into casting, forging, stamping, welding, mechanical processing, assembly and other processes. The mechanical manufacturing process generally refers to the sum of the mechanical processing process of parts and the assembly process of machines. Other processes are called auxiliary processes, such as transportation, storage, power supply, equipment maintenance, etc. The manufacturing process is composed of one or several sequentially arranged processes, with each process consisting of several steps.