The steps of the process specification are roughly as follows:
1. Read product assembly drawings and parts drawings, understand the use, performance and working conditions of products, and be familiar with the position and function of parts in products. Carry out technological analysis on the structure of relevant parts of the lathe, including usability and manufacturing feasibility, find out the key technologies and operation difficulties of lathe parts manufacturing, and determine the solutions.
2. Determine the blank type and processing method, and draw the blank drawing if necessary.
3. Proposed process route.
4. Determine the machining allowance, process dimension and manufacturing tolerance of each process of the lathe.
5. Determine the equipment, cutting tools, fixtures, measuring tools and auxiliary tools used in each process, and put forward the design and manufacturing instructions for the special equipment that needs to be designed or modified for the lathe.
6. Select lathe cutting quantity and calculate man hour quota.
7. Determine the technical requirements and inspection methods of each main process of the lathe
8. Carry out the technical and economic analysis of the lathe and select the best scheme.
9. Prepare process documents.
