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Adhesive Joining Technology for Manufacturing of the Composite Flexspline for a Harmonic Drive |
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| Authors: | Kwang Seop Jeong Dai Gil Lee Yoon Keun Kwak |
| Affiliation: | a Department of Precision Engineering and Mechatronics, Korea Advanced Institute of Science and Technology, Taejon-shi, Korea |
| Abstract: | A new manufacturing method for the cup-type composite flexsplinc drive was developed using adhesive joining technology to obviate the manufacturing difficulty of the conventional one-piece cup-type steel flexspline and to improve the dynamic characteristics of the flexspline.
In this method, the boss, tube and tooth sections of the flexspline were designed and manufactured separately, and adhesively bonded. The tube section was manufactured with high strength carbon fiber epoxy composite material and its dynamic properties were compared with those of the conventional steel flexspline. The torque transmission capability of the adhesively-bonded joint was numerically calculated using the nonlinear shear stress-strain relationship which was represented by an exponential form. From the test results of the manufactured composite flexspline and the conventional flexspline, it was found that the manufactured composite flexspline had better torque transmission characteristics. Also, it was found that the damping capacity of the composite flexspline was considerable improved. |
| Keywords: | Adhesive joining technology adhesive thickness adhesive nonlinear property bonding length harmonic drive composite flexspline torque transmission capability radial stiffness dynamic characteristics damping capacity |
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