Broaching of outside surfaces is called _____.

Explanation:

Broaching:

• Broaching is a machining process that uses a toothed tool, called a broach, to remove material. When broaching is applied to outside surfaces, it is referred to as surface broaching. This process is utilized to machine flat, contoured, or other external surfaces of a workpiece, ensuring high precision and surface finish.

Working Principle: Surface broaching involves the use of a broach with cutting teeth arranged in a specific sequence. As the broach is pushed or pulled across the surface of the workpiece, each tooth removes a small amount of material. The depth of cut increases progressively with each tooth, resulting in the desired shape and dimensions of the external surface. This process is highly efficient for producing complex external profiles in a single pass.

Advantages of Surface Broaching:

• High Precision: Surface broaching provides exceptional dimensional accuracy and surface finish, making it ideal for applications requiring tight tolerances.
• Cost-Effective for Mass Production: It is highly efficient for machining large quantities of parts with similar external profiles, reducing production time and cost.
• Capability to Machine Complex Profiles: Surface broaching can produce intricate external shapes that might be challenging or impossible with other machining processes.

Disadvantages of Surface Broaching:

• High Initial Cost: Broaching tools and machines have a substantial upfront cost, which can be a limitation for small-scale production.
• Limited to Specific Applications: The process is primarily suited for high-volume production and may not be economical for small-batch jobs.
• Material Limitations: Surface broaching is most effective on softer metals and alloys. It may not be suitable for extremely hard materials.

Applications of Surface Broaching:

• Manufacturing of automotive parts, such as gears and splines.
• Production of turbine blades and other components in the aerospace industry.
• Machining external profiles for tools and dies.