An Efficient Drilling Modeling Method Based on Chip Separation Crack Propagation Strategy
A technology of crack propagation and chip separation, which is applied in the field of high-efficiency drilling modeling based on chip separation and crack propagation strategy, which can solve the problem of not reflecting changes in chip shape, and achieve the effect of avoiding volume self-locking.
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[0073] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention and the accompanying drawings.
[0074] An efficient modeling method for drilling based on chip separation crack growth strategy, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 , including the following steps:
[0075] Step 1. Establish the geometric model of the drill tip part of the drill bit. The drill bit is defined as a rigid body part regardless of wear, and the drill bit is defined as a rigid body part.
[0076] Step 2. Establish a geometric model of the cylindrical workpiece. In the drilling model, the part of the workpiece adjacent to the tool tip is considered, and the geometric model of the workpiece is constructed according to the shape of the drill tip, and the sweep with the main cutting edge is prefabricated on the cylindrical workpiece. A cone-like surface with consis...
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