| The issues have been settled that good and firm welding joint cannot be provided for aluminum, magnesium, copper and the light alloy material made of them with high strength and low fusion point in the traditional fusion welding due to the invention of friction stir welding (FSW), which is successfully applied to the industry of aviation, ship building, vehicle building and the like. As a new advanced welding joint technology, com-stirTM friction stir spot welding (com-stirTM FSSW) has a greater advantage than FSW, traditional resistance spot welding and riveting in joint., which is also an crucial technology to reduce the weight and material of aircraft and prolong the service life of aircraft. It is inevitable that the joint through com-stirTM FSSW shall substitute the traditional single point joint and will be one of the most crucial manufacture methods in the industry of carrier assembly.The test equipment is the foundation for studying FSW technology and a cornerstone for the industry application for FSW. Thus, combining the.basic design principals for general machine tool with the features of com-stirTM FSSW, this paper makes three-dimensional (3D) module to the test equipment for aluminum alloy com-stirTM FSSW applying PROE software with the the design method from top to bottom based upon the construction.The paper modules the static force for cantilever and body in the preliminary design and makes module analysis for cantilever and equipment. The static force analysis expresses that the rigidity and strength for both cantilever and body conforms to the requirements. And the module analysis shows that the natural frequency for cantilever is higher but dynamic property is good and resonance may occurs for the equipment as the first natural frequency for overall unit is close to the excitation frequency for the spindle motor. With the result of static force and module analysis, the paper also raises the weak in the preliminary design for the facilities and provides the corresponding measurements. After modified and improved, the facility has a good dynamic property as the natural frequency is increased a lot.The paper also provides us a design method to test equipment for com-stirTM FSSW and explores a technology method to eliminate the keyhole with hydraulic rotation. The test equipment for com-stirTM FSSW can be regarded as the basic study for FSSW with Com-stir technology and it can also be the foundation for the commercial plant studying and manufacturing for com-stirTM FSSW to promote the application of com-stirTM FSSW to the industry. |
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