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The principle of division of CNC milling processing processes mainly includes two types: centralized and decentralized.
1.Process concentration means that each process contains as much other processing content as possible, so as to simplify the process. The advantages of adopting this centralized principle are mainly conducive to the use of efficient special equipment and CNC milling machine to improve equipment productivity, reduce the cumbersomeness of the process, streamline the process route, reduce the production plan accordingly, and improve the operation efficiency on the basis of ensuring the machining accuracy of the workpiece.
2.The principle of process dispersion refers to the dispersion of the processing of the workpiece in other processes, the processing content of each process is less, and the advantage of using process dispersion is that the processing equipment and process content are simple, and the adjustment and maintenance are easy to get started, which is conducive to reducing the reasonable amount of cutting and reducing the processing time of the workpiece by the CNC milling machine. However, due to the long processing route and cumbersome process, this method requires an increase in the number of equipment and workers.
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Process concentration, 1Coarse first and then fine.
2.First near and then far.
3.Cross inside and outside.
4.Tool centralization.
5.The base plane goes first.
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Personal opinion: 1: Prudent. Ensure that the processing can be completed smoothly and do not need to be tossed back and forth. 2: Change the process of different materials according to the situation, 3: The processing benchmark should be unified, 4: The fine size should be done last, even if it should be done more than once.
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Consider tooling, clamping, and roughing.
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Look online, there are a lot.
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When using controlled bed-first-cutting machining, the correct shunyi is from front to back.
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Transfer program – move the tool away from the workpiece – dry run – automatic machining.
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This should be that there will be some specialized people to process for you, this should be to give you guidance in the financial industry, and it should be able to operate better and be practical.
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Hello, the division of CNC turning processes for parts should follow the following principles:1Logical Principles:
The processing of parts is divided into a combination of processes with an internal logical relationship, following the sequence and the relationship between the front and back. 2.Unit Principles:
Stable processes are divided into separate processes to facilitate stable processing. 4.Feasibility Principle:
The division of the processing sequence should consider the actual situation of production equipment and technology to ensure the feasibility and efficiency of processing. 5.Principle of economy:
Dividing the processing of parts into a reasonable combination of processes can maximize the use of processing equipment and tools and reduce production costs. Following the above principles, the parts processing process can be divided more reasonably and efficiently, so as to improve the processing quality and production efficiency.
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The arrangement of the machining sequence should be considered according to the structure of the part and the condition of the blank, as well as the need for positioning and clamping, and the focus is that the rigidity of the workpiece is not destroyed. The order should generally be carried out according to the following principles:
1. The processing of the previous process can not affect the positioning and clamping of the next Huishan process, and the processing process of general machine tools interspersed in the middle should also be considered comprehensively.
2. The inner cavity processing sequence is carried out first, and then the shape processing process is carried out.
3. In the same installation, the multi-channel failure should be arranged first.
4. It is best to connect the processes processed with the same positioning, clamping method or the same tool to reduce the number of repeated positioning, the number of tool changes and the number of times of moving the pressing plate.
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CNC machining is a kind of machining, so there are some similarities with the arrangement of general machining processes, and the arrangement of CNC machining and machining sequence should generally follow the following principles:
1. The processing of the previous process cannot affect the positioning and clamping of the next process.
2. The process of processing with the same installation method or using the same tool is best carried out continuously to reduce the error caused by repositioning or tool change. Enlightenment and destruction.
3. In the same installation, the process with little impact on the rigidity of the workpiece should be carried out first to ensure that the workpiece is gradually processed under sufficient rigidity conditions.
These principles apply not only to CNC machining, but also to ordinary machining. In addition, for CNC machining, Table 1 lists some other principles that should be paid attention to according to the characteristics of CNC machining technology, and Tanaga, when determining the processing process, should also be paid attention to.
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The sequence of CNC machining usually includes the following steps:
Design CAD models of products.
Make a CAM program.
Set the machine parameters.
Load the tool and the workpiece.
Run the machining program.
Check and measure the quality of the workpiece.
Unload the workpiece and tool.
Clean and maintain machine tools and tools.
Cutting refers to the process of removing material from a workpiece using a tool. The principles of cutting and chipping include:
The cutting edge enters the surface of the workpiece and cuts the material bridge.
The influence of the geometry of the tool and the hardness of the tool material on the cutting force and cutting temperature.
The use of cutting fluid cools the workpiece and tool and reduces the temperature closure of the cut.
The choice of cutting speed, feed rate and depth of cut affects machining efficiency and workpiece quality.
The surface quality and dimensional accuracy of the cutting process are affected by tool wear and the accuracy of the machine.
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