Broaching itself does not "compose" the workpiece, but rather is a processing method; however, the core elements upon which broaching is completed are:
Broach: A multi-tooth cutting tool, including a shank, neck, transition taper, leader, cutting section (roughing teeth + finishing teeth), alignment section, and rear guide section, responsible for removing the allowance tooth by tooth;
Workpiece: The metal blank to be machined (such as steel, aluminum, cast iron, etc.), requiring a pre-drilled hole (internal broaching) or a reference surface (external broaching);
Broaching machine: A machine tool that provides the linear main motion of the broach and holds the workpiece, including clamping, transmission, and guiding mechanisms;
Auxiliary devices: Including fixtures (for fixing the workpiece), a cutting fluid system (for cooling and lubrication), and a chip removal device.
Note: "Broached part" does not refer to the structural composition of the workpiece itself, but rather to the necessary components involved in the broaching process. If the question refers to the broach structure, it is typically divided into 8 sections: shank, neck, transition taper, leader, cutting section, alignment section, rear leader, and tail (or rear shank).
