Forming system

A forming system for forming a metal pipe by expanding a metal pipe material in a die, comprising:

• a preliminary forming apparatus configured to preliminarily form and heat the metal pipe material;
• a forming apparatus which includes:
• a first gas supply unit configured to supply gas into the preliminarily-formed metal pipe material to expand the metal pipe material;
• a second gas supply unit configured to supply gas into the preliminarily-formed metal pipe material;
• and
• a main body portion to which the die is attached;
• a cutting device configured to cut at least a portion of the formed metal pipe;
• and
• a path connected to the first gas supply unit and the second gas supply unit,
• wherein the first gas supply unit is provided so as not to be disposed on a first straight line which connects the preliminary forming apparatus and the main body portion in a plan view and a second straight line which connects the cutting device and the main body portion in the plan view,
• wherein directions orthogonal to each other with respect to a center of the forming apparatus are a first direction and a second direction, the preliminary forming apparatus and the entire cutting device are disposed on one side in the second direction from the forming apparatus,
• wherein the preliminary forming apparatus is disposed on one side in the first direction from the forming apparatus,
• wherein the entire cutting device is disposed on the other side in the first direction from the center of the forming apparatus, and
• wherein the first gas supply unit and the second gas supply unit are provided in the first direction in a state where the center of the forming apparatus is interposed between the first gas supply unit and the second gas supply unit.