Page 142 - CITS - Fitter - Trade Theory

FITTER - CITS

Certainly! Broaches can be categorized into different types based on their design and intended use:
1 Internal Broaches:
Used for cutting internal features such as keyways, splines, or holes within a workpiece.
2 External Broaches:

Designed for cutting external features like flats, keyways, or splines on the outer surface of a workpiece.
3 Keyway Broaches:
Specifically designed for cutting keyways, which are slots in shafts or hubs to accommodate keys for transmitting
torque.

4 Surface Broaches:
Used for cutting flat or contoured surfaces on workpieces, often used in surface finishing applications.
5 Specialty Broaches:
This category includes broaches designed for specialized applications, such as cutting gears, serrations, polygons,
or other custom profiles.
These categories cover the main types of broaches commonly used in machining processes. Each type serves
specific purposes and is designed to produce precise features on work pieces efficiently.
Safety precautions are essential when operating a broaching machine to prevent accidents and injuries.
Here are some common safety measures:
1 Training: Ensure that operators are properly trained in the safe operation of broaching machines and familiar
with the machine’s controls, procedures, and potential hazards.
2 Protective Equipment: Operators should wear appropriate personal protective equipment (PPE) such as
safety glasses, gloves, and hearing protection to safeguard against flying chips, noise, and other hazards.
3 Machine Guards: Make sure all machine guards are in place and properly secured before operating the ma-
chine. Guards help prevent access to moving parts and cutting tools during operation.
4 Tool Inspection: Regularly inspect broach tools for damage, wear, or defects. Damaged or worn tools should
be replaced promptly to maintain cutting performance and prevent accidents.
5 Workpiece Clamping: Ensure that workpieces are securely clamped in place to prevent movement or displace-
ment during the cutting process. Loose workpieces can lead to tool breakage or ejection.
6 Clear Workspace: Keep the work area clean and free of clutter to prevent tripping hazards and ensure safe
movement around the machine.

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CITS : CG & M - Fitter - Lesson 22 CITS : CG & M - Fitter - Lesson 22