Question

how is a metal Rim fix around the wooden wheels of a cart

Answer 1

When the rim cools, it contract and press tightly on to the wheels. Metals expand on heating and contract on cooling. This expansion and contraction of a metal is a reversible change. ... When the rim cools, it contract and press tightly on to the wheels.

Answer 2

first the metal is melted so that it can easily come over wheel and then it is cooled and it easily get fit.