![]() ![]() The axial force and torque increased with the increase in cutting speed and feed rate. The experiment data had shown that the relative error between the calculated values and the experimental values were within the acceptable range. All work will be strictly in term of technical drawings, samples or very detailed requirement. ![]() Besides, GSM is also capable customize special drill shank for your own. You can refer to the parameters bellowing. Which are suitable for most of gun drilling machines. Coolant is delivered directly to the cutting edges. GSM also manufacture different types and sizes of gun drill shank. The feasibility of the model was verified by experiments and the influence of cutting parameters on the axial force and torque was analyzed. Before drilling commences the gun drill must be suported by a guide bush or pre-drilled start hole. In the meanwhile, the torque calculation was simplified reasonably according to the theoretical analysis. The eccentricity at the bottom of the drill groove was taken into account in the integral area of the cutting edge. On the basis of the existing model, the model coefficients were modified under various cutting conditions and the integral area of the cutting edge was enlarged. Referencing special energy model, a new gun drill mechanics model was established and the influence of the cutting parameters on axial force and torque was based on 15-5PH solid solution stainless steel through theoretical analysis and cutting tests. ![]()
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