According to the introduction of precision CNC machining manufacturers, the large-scale CNC machining parts are made of bar materials, and the process plan of rough machining and finishing is adopted. The specific process flow is as follows: blank → rough turning → rough milling → aging → fine turning → fine milling.
Compared with conventional CNC titanium machining processes, the outstanding advantages of turning-milling combined machining are mainly manifested in the following aspects:
1.Parts with high precision requirements
Modify tool offset value to ensure dimensional accuracy
After the CNC machine tool is produced by the manufacturer, the machine tool has been subjected to various requirements and inspections, and only after passing the inspection, can it leave the factory. Regarding medium and large CNC machine tools, because the machine tools are large in size and not convenient for transportation, they must be distinguished and transported to the user after they collapse before they can be used before they can be reassembled and debugged. As for small machine tools, the float level gauge does not need to crash the machine tool during transportation, so the installation, debugging and acceptance tasks of the machine tool are relatively simple.
Aluminum is the most widely used and widely used metal material among non-ferrous metals, and its application range is still expanding. There are many kinds of aluminum products produced using aluminum, and there are more than 700,000 types according to statistics. Various industries such as construction and decoration, transportation, and aerospace have different needs. Today I will introduce to you the processing technology of stand casting and how to avoid processing deformation.
Four turning-milling compound machining programming technology knowledge points worthy of your learning!
The development of turning-milling composite processing technology also puts forward higher requirements on CNC programming technology, which is also a bottleneck restricting processing equipment in actual production. Due to the relatively short time required to convert milling compound processing into actual production, in the absence of professional compound processing solutions, general-purpose CAM software is usually used to plan part of the processing program, and then the processing personnel will perform manual integration to meet the program requirements The processing program of the compound processing machine tool. This solution puts high demands on the craftsman.
Turn-milling composite machining has many moving parts and complex functions, so machining simulation after programming is particularly important. Since the turning-milling composite machining of my country’s aviation manufacturing plants has been put into actual production in a short time, there is no mature simulation application technology, so most manufacturers verify and optimize the program through trial cutting, which leads to a long process. The preparation cycle and development risks and processing costs are high.
The hard rail refers to the casting that integrates the guide rail and the base. When processing precision parts, the guide rail is processed according to the casting. That is, the shape of the guide rail is cast on the bed, and then processed by quenching and grinding. The bed and the guide rail are not necessarily integrated. For example, nailing steel rails to the bed after processing. Linear guides for machine tools that use hard rails usually refer to rolling guides, which are the kind used in linear modules, which are now often used in the machine tool industry. We usually refer to these types of components as “linear guides”.