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How to choose a suitable CNC bending machine

  • 2020-09-23 10:36:41

How to choose a suitable CNC bending machine


For automobile, aircraft manufacturing, light industry, shipbuilding, containers, elevators, railway vehicles and other industries in China, there is a CNC machine tool that is widely used. Unlike ordinary machine tools, it is often larger in size and has a strong "bite force." , I believe netizens have guessed its name, it is CNC bending machine.

When most users choose a CNC bending machine, they mainly consider the material grade, as well as the maximum processing length and thickness, which is relatively easy to understand. Of course, this aspect refers to the situation of the user's own processing of items, and the precise selection can be achieved. Only in this way, the cost of output can be reduced. It should be known that the selection of the bending machine is directly related to the issue of cost.

Generally speaking, it is to see what type of parts the user wants to produce, and make a choice in determining their maximum bending machine conditions, without having to choose those unnecessary tonnages. In addition, in order to select the lowest tonnage specification, it is possible to choose a thickness greater than that of the parts made by itself. In this case, it can ensure that the machine does not perform load work under certain conditions and ensure the service life of the bending machine. Of course, if the tonnage is too large, it will affect the accuracy of the manufactured parts, but if it is slightly larger, it will not affect this.

How to choose a suitable CNC bending machine

What the user needs to do is to carefully consider the material grade and the maximum processing thickness and length. If most of the workpiece is low carbon steel with a thickness of 16 gauge and a maximum length of 10 feet, the free bending force does not need to be greater than 50 tons. However, if you are engaged in a large number of bottomed die forming, perhaps a 150-ton machine tool should be considered. Assuming that the thickest material is 1/4 inch, 10 feet of free bending requires 165 tons, and bottomed die bending (corrected bending) requires at least 600 tons. If most parts are 5 feet or shorter, the tonnage is almost halved, which greatly reduces the cost of purchase. The length of the part is very important for determining the specifications of the new machine.

Of course, the choice of the bending machine is mainly based on the user's own situation, which is certain and is also a direct factor in reducing production costs. The bending machine can also be used to press the dead edge of the workpiece. The workpiece is first bent to 30 degrees, and then the workpiece is crushed to death with a flat knife. Generally, the dead edge that can be completed with a normal punch is not arranged in the bending machine as much as possible, because the punch press is relatively better for the dead side. When arranging the process, it is often necessary to consider whether it is easy to bend and whether it can be bent. Because bending is a very important process, whether the bending is good or not directly affects the guarantee of bending quality, and the quality problems of the product are often caused by the bending size is not well controlled, so special attention should be paid to the bending problem during the design process, which is related to the stability of the product quality during mass production.

How to choose a suitable CNC bending machine

In the actual bending process, various problems will be encountered. In many cases, the influence of bending on other processes must be considered. In many cases, specific problems must be analyzed in detail and the process should be properly arranged. Meanwhile, under some special needs, the supplier will also manufacture special bending knives, but if the shape of the tool is stranger or the curvature becomes larger, it will inevitably affect the rigidity of the tool and shorten the tool life. At present, the development of CNC bending machine is also facing many tests. The application of CNC system, CAD and CAPP and flexibility are developing rapidly. However, Chinese CNC bending machine industry has a long way to go if it wants to continue to develop and grow.


Products details: Bending machine

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