How to process small holes in non-standard parts?

2023-12-15 11:21:10

1. first process route design and processing tool selection:

According to the actual situation of small holes to be processed in stainless steel parts, the following process route can be worked out: coarse interior shape-semi-fine interior shape-fine interior shape-fine interior shape-fine interior hole ring groove-vehicle end face groove.

The choice of cutting tools should be based on the characteristics of stainless steel itself, and the appropriate cutting tools should be selected from all aspects. It includes the following four points:

1. In order to avoid the phenomenon of workpiece falling off, it is necessary to choose a right-hand tool that is opposite to the thread of the thread. Non-standard parts processing

2. to try to choose the shape of the tool and the cutting groove (not very smooth) cutting force is the smallest, so that you can reduce the impact on the rigidity of the parts.

3. The arc of the tip of the knife should be moderate. If the arc is too large, it will produce chatter lines; if the arc is too small, the tool tip is easily damaged, which affects the service life of the tool.

4. in the choice of the cutter bar to choose the form of internal cooling, so that in the process of processing will make the parts get sufficient cooling, but also to make the corresponding control of the chip direction.

Processing of 2. stainless steel parts small holes:

1. Due to the composition of the part structure, only the positioning method of thread fixture can be used for clamping during turning in the inner cavity. For the special requirements of workpiece processing, if the center of gravity is irregular, it will be easily unbalanced in the clamping system. At the same time, there are high requirements for dimensional accuracy, coaxiality and perpendicularity. If there is a little error in the process of processing, it may have a serious impact on the practical performance of the parts.