Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : November 20, 2019 - November 22, 2019
This study aims to solve effector of coupling’s tensile strength and temperature measurement on tip of tool. This joining produce friction heat by pushing spinning tool to Al alloy, and adhere insert material into Al alloy and CFRP by friction heat and indentation force. This joining use tool made of SKD61. Tool’s diameter is 12mm. Tool’s rotating speed is 750rpm. Tool’s indentation speed is 5.0mm/min. Tool’s indentation hold time is 5.0s. Sample materials are Al alloy(A5052-H34) and CFRP. Insert material is Polyethylene terephthalate(PET). PET is held by Al alloy and CFRP, and pushed by spinning tool from Al alloy side. Tensile shear test is conducted in the atmosphere. Cross head speed is 0.5mm/min. Use load cell in indentation load measurement. Establish thermocouple into hollow tool, and use in temperature measurement. As a result of measurement, identified that coupling’s tensile strength increase by joining area’s size and indentation force’s volume. Total Energy by joining isn’t affect to tensile shear strength. Balance of heat energy and deformation energy is affect to tensile strength. PET’s molten state is affect to tensile strength because temperature occurred by joining isn’t over PET’s melting temperature in 0.3mm and 0.5 mm.
