Abstract ▼ AI-Helper

Using carbon steel or ceramic as a shaft material and varying the material of boss clamped on it, the magnitude of the clamping forces by shrink fit were investigated while taking shaft diameter, amount of interference, and clamping length as experimental parameters. The following conclusions were o...

Using carbon steel or ceramic as a shaft material and varying the material of boss clamped on it, the magnitude of the clamping forces by shrink fit were investigated while taking shaft diameter, amount of interference, and clamping length as experimental parameters. The following conclusions were obtained as results of this investigation : 1) When both material of the 30mm-diameter shaft and 55mm- diameter boss are SM45C, the clamping Torque is icreasesed 2.7 times as the interference increases 3 times from 20 ㎛ at the contact length of 6mm. 2) When only the material of boss is changed to SM20C, the clamping Torque is increased at the rate of 37.4 N·m per 1 mm increase of the contact length at the interference of 50㎛. 3) Among bosses made of SM45C, SM20C, STS304, and brass, the clamping force of the shrink fit was largest when the mating boss material is SM45C while shaft material is SM45C. 4) For the ceramic shaft, the clamping force was about 30% less than that of SM45C shaft while other parameters were the same for both cases.

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