Compared with ordinary materials, the processing technology of stainless steel materials is more complex. How to process the small holes of stainless steel parts? Here are some skills on how to process the small holes of stainless steel parts?
In the field of machining, first of all, the design of process route and the selection of machining tools: according to the actual situation of small holes of stainless steel parts to be machined, the following process route can be formulated: rough inner shape – semi fine inner shape – fine inner shape – fine inner hole annular groove – end groove. The selection of cutting tools should be based on the characteristics of stainless steel and comprehensive consideration from all aspects. It includes the following points:
- In order to avoid the phenomenon of workpiece falling off, it is necessary to select the right-hand tool opposite to the thread of the thread mould.
- Try to choose the shape of the tool and the shape of the cutting groove (not smooth) with the smallest cutting force, so as to reduce the impact on the rigidity of the part.
- The arc of the tip should be moderate. If the arc is too large, it will produce chattering lines; If the arc is too small, the tool tip is easy to be damaged, which affects the service life of the tool.
- In the selection of cutter bar, the form of internal cooling should be selected, so that the parts will be fully cooled in the processing process, and the chip removal direction should be controlled accordingly.
Small hole machining control of stainless steel parts: due to the structure of mechanical parts, the positioning mode of thread mould can only be used for clamping during inner cavity turning. For the special requirements of workpiece machining, if the center of gravity is irregular, it will be easy to be unbalanced in the clamping system. At the same time, there are high requirements for dimensional accuracy, coaxiality and verticality. If there is a little error in the processing process, it may have a serious impact on the practical performance of the parts.
Therefore, for the machining of small holes in stainless steel parts, there should be strict requirements for the selection of tools, cutting parameters and the setting of process route. These factors will affect whether the part is qualified after machining. The machining accuracy of machining equipment itself is also very important!
The above is how to process stainless steel holes of precision machined parts. Thank you for your attention!
ken. tang@chengcg.com
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