Broaching

Broaching is a machining process used to remove material from a workpiece using a broach tool, which has multiple cutting teeth arranged in a progressive sequence. It is an efficient method for creating precise shapes, keyways, holes, and complex profiles in metal and other materials.

How Broaching Works :

• A broach tool is pushed or pulled across the surface of a workpiece.
• The teeth of the broach are arranged in stages, each removing a small amount of material.
• The process is fast, precise, and ideal for high-volume production.

Types of Broaching Processes

Broaching is classified based on the direction of movement and tool design:

A. Based on Direction of Motion

• Linear Broaching : A broach tool is pushed or pulled across the surface of a workpiece.
• Rotary Broaching : The tool rotates to create circular or hexagonal holes.

B. Based on Machine Type

• Internal Broaching : Used for cutting internal features like holes, keyways, or splines.
• External Broaching : Used to shape the external surface, such as gears or flat surfaces.

C. Based on Feed Mechanism

• Push Broaching : The broach is pushed through the workpiece (used for short parts).
• Pull Broaching : The broach is pulled through the workpiece (used for longer parts).