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 the chip separation crack growth strategy, 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 drilling modeling method based on chip separation crack growth strategy, please refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 with Image 6 , Including the following steps:
[0075] Step 1: Establish a geometric model of the drill tip part. 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. The part of the workpiece adjacent to the tip of the tool is considered in the drilling model, and the geometric model of the workpiece is constructed according to the shape of the drill tip. Cone-like surface with consistent sweep trajectory.
[0077] Aiming at the stage when the drill bit is drilled to form an edge defect, th...
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