Manufacturing method of bar component and bar component

A manufacturing method of a bar component including a pipe made of a carbon fiber reinforced resin and an internal metal member having an outer peripheral surface in contact with an inner peripheral surface of an end portion of the pipe in an axial direction, the method comprising:

• preparing a core including a metal mandrel extending in the axial direction and the internal metal member having the outer peripheral surface subjected to surface roughening process;
• winding a prepreg sheet obtained by impregnating carbon fibers with resin around an outer peripheral surface of the core;
• forming the pipe having the end portion fitted onto and fixed to the outer peripheral surface of the internal metal member by baking and curing the prepreg sheet wound around the outer peripheral surface of the core;
• and
• removing the mandrel from the pipe,
• wherein the prepreg sheet is wound around the outer peripheral surface of the core with a heat-adhesive film interposed between the prepreg sheet and an outer peripheral surface of the internal metal member.