Design Front Rake Angle of PDC Bit Based on Solid Works Simulation Method

In order to solve the bit front rake angle parameter selection problem of under different coal rock, it is proposed in polycrystalline diamond compact no core bit as the research object, and established a bit compact two-dimensional stress model of cutting teeth. The result shows that the front rake angle is the factor of cutting force and the drilling efficiency. Application of Solid Works simulation carries out the finite element simulation analysis respectively to different front rake angle of bit model under the conditions of soft rock and hard rock. Form the simulation results it can be concluded that under the condition of soft rock and hard rock, the optimal front rake angle is 10° and 15° respectively. It is obtained that the strength of the bit is largest and the life is longest on the best front rake angle of bit.