In the process of processing, we will certainly encounter some unexpected accidents. If there are some accidents in the process of processing, there must be a certain degree of danger, so we must do some preventive measures to avoid the real failure and injury to people. Then we will learn how to control the spring knife in the cutting process of CNC machining center.
In the process of machining, the length of the tool should be shortened as far as possible to reduce the risk of tool bounce. The relationship between tool deformation and tool diameter is the fourth power. For the same length of tool, when the tool diameter is reduced by one time, the deformation will increase by 4 times. In the process of processing, if possible, select large-diameter cutting tools or use reinforced cutting tools to reduce the risk of knife snapping. (as shown in the figure on the right below: a uses the heat cable and taper neck knife, and B uses the tool with strong handle for processing)
The deformation of the tool is in direct proportion to the force exerted on the tool in the process of machining. Reducing the force on the tool can reduce the chance of snapping the tool. The following methods can be used to reduce the force on the tool in machining.
Reduced force analysis:
Cutting is a process of shear deformation. Each material has its own strength (σ). In order to separate the materials, the strength from outside must be greater than that of the material itself.
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