The original error is an error that initially exists in the CNC milling process. The more common ones are geometric error, positioning error, CNC machining error caused by deformation, CNC machining error caused by thermal deformation, and internal stress distribution of CNC milling parts caused by error, etc.
The rationality of fixture design directly affects the quality, production efficiency and CNC machining cost of metal CNC machining parts. In actual production, the design of the fixture is mainly based on the CNC machining process plan and the experience of the operator.
Practice has proved that the pulling and boring method is a deep hole machining method with good stability and high CNC machining accuracy. The above structural diagrams basically cover the application of the pulling boring method, which can be applied to the machining of specific deep-hole CNC parts to ensure the final CNC machining accuracy requirements.
Mild steel is a material with low hardness and high viscosity, and its cutting performance is poor. In order to make the surface roughness of CNC machined holes reach Ra=1.6m after finishing, most of them use high-speed steel reamers and low-speed reamers to complete the hole processing through three processes of drilling, expanding and expanding.
The division of CNC parts machining steps is mainly considered from the two aspects of CNC parts machining accuracy and production efficiency. In the process of machining CNC parts, it is often necessary to use different tools and cutting amounts to machine different surfaces.
With the improvement of CNC machining center performance and tool performance, threading methods are constantly improving, and the precision and efficiency of threading are also gradually improving. In order to enable technicians to reasonably select thread machiningmethods in the process of precision CNC machining
At present, metal CNC machining castings have been widely used in the manufacturing industry. This casting process dates back 6,000 years and is still used today to make complex and large custom metal CNC machined parts. With the development of the foundry manufacturing industry, the CNC machining process of metal castings is automated, the cost is low, and the processing is more complex, large and small.
RTCP, in the high-end five-axis CNC machining system, considers RTCP as the center point of the rotating tool, which is what we usually call the tool nose point tracking function. In five-axis CNC machining, when the trajectory of the tool head point and the attitude between the tool and the CNC machined part are tracked, the rotary motion will generate additional motion of the tool cusp.