Method for predicting axial force of whole process of rotary ultrasonic drilling of CFRP/Al laminated structure
A technology of rotating ultrasonic and laminated structure, which is used in measuring/indicating equipment, metal processing equipment, metal processing machinery parts, etc. Effect
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[0202] The experiment uses a CFRP material made of carbon fiber and epoxy resin orthogonally bidirectionally woven, and the elastic modulus E in the thickness direction 3 =3.32GPa, Poisson's ratio ν is 0.3, and the shear strengths perpendicular to the fiber direction and parallel to the fiber direction are 44.2MPa and 90MPa, respectively. The friction angle during drilling is set to 30 ° . The geometric parameters of the tool are shown in Table 1.
[0203] Table 1 Tool geometric parameters
[0204]
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