Machining process planning is provisions of part machining process and operation method of the process of document, it is under the specific conditions of production, the reasonable process and operating method, into process documents in accordance with the provisions of the written form, after examination and approval after used to refer to guide production. The machining process and procedures generally include the following: the specific content of the workpiece machining process route, the process and the equipment and process equipment, workpiece test items, test methods, cutting dosage, time quota

Steps to develop process procedures

1) to calculate the annual production programme and determine the type of production.

2) analysis of parts drawings and product assembly drawings, process analysis of parts.

3) select the blank.

4) to draw up the process route.

5) determine the machining allowance of each process, calculate the working procedure dimensions and tolerances.

6) determine the equipment and tools, fixtures, gauges, and auxiliary tools used in each process.

7) determine the amount of cutting and working hours.

8) determine the technical requirements and test methods of the major processes.

9) fill in process documents.

In the process of the development of the process, often in the front of the preliminary determination of the contents of the adjustment, to improve economic efficiency. In the course of execution of the procedure, there will be unexpected, such as production conditions change, the introduction of new technology, new technology, and the application of new materials, advanced equipment, in a timely manner to process rules to revise and perfect.