The geometrical conditions that make up the contour of the part
During the manual programming of the turning-milling CNC lathe, the coordinates of each node should be calculated; during the automatic programming process, metal cnc machining，all the geometric elements that constitute the contour of the part should be defined.
Dimensional Accuracy Requirements
Analyze the requirements of the dimensional accuracy of the part drawing, determine whether the lathe process can be achieved, and determine the process method to control the dimensional accuracy. When using CNC lathe parts, it is often programmed with the average value of the size and limit dimensions of the required parts. size according to.
Surface Roughness Requirements
Surface roughness is an important requirement to ensure the microscopic precision of the part surface, and it is also the basis for the rational selection of turning-milling CNC lathes, tools and a certain amount of cutting.
Data and Heat Disposal Requests
The data and heat treatment requirements given on the part drawing are the basis for selecting tools, CNC lathe models, and determining the amount of cutting.