Shrink-fitting
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Shrink-fitting is a technique in which pieces of a structure are heated or cooled, employing the phenomenon of thermal expansion, to make a joint. For example, the thermal expansion of a piece of a metallic drainpipe allows a builder to fit the cooler piece to it. As the adjoined pieces reach the same temperature, the joint becomes strained and stronger.
One of such example is fitting the iron strip on the edge of the wheel of bullockcart. The strip will be heated to some temperature, due to the increase in temperature it expands and then mounted on the wheel of same diameter. After cooling, the iron strip makes the stronger fit with wheel.
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