Home > Exhibition > Content

Principles and strength requirements for finishing

Jul 16, 2018

In the process of finishing, the feed route is basically in the order of the contours of its parts, so it is necessary to determine the feed route of the finishing route and the idle route when determining the work focus of the feed route. So what are the principles that operators must follow in CNC lathe machining?

1. Finishing requires effective assurance of the accuracy of the workpiece being machined and the roughness of the surface.

2. To some extent reduce the idle travel time in the feed route, which can make the machining route the shortest, thus improving the processing efficiency.

3. Try to simplify the workload of numerical calculations. Simplify the machining process.

4. For some reusable programs, use subroutines whenever possible.

The principle of improving the strength of the parts during finishing can effectively use the high-strength material, heat-treating the material to improve the strength and reduce the internal stress, and control the processing to reduce or eliminate micro-defects; The upper load increases the size of the dangerous section of the part, rationally designs the sectional shape to increase the moment of inertia of the section, and properly relates the structure of the part to reduce the concentration of stress.


The primary premise of CNC finishing is the accuracy of the process reference. The benchmarks on the mechanical drawings are represented by capital letters A, B, C, D, etc. with a specific circled reference symbol. When the extension line of the surface or the size limit of the surface is defined, it is based on the surface. The dimension line that is aligned with the reference symbol is based on the physical centerline of the dimension.