A keyway milling machine is a specialized tool used to cut keyways (slots) into shafts, gears, or pulleys to accommodate keys for torque transmission. Below are the key aspects of a keyway milling machine:
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Types of Keyway Milling Machines
1. Manual Keyway Milling Machine
– Operated by hand, using a crank or lever to feed the cutter.
– Suitable for small-scale or repair work.
2. CNC Keyway Milling Machine
– Automated with computer numerical control for precision and repeatability.
– Ideal for high-volume production.
3. Broaching Machine (Alternative Method)
– Uses a broach tool to cut keyways in a single pass.
– Faster but limited to specific sizes.
4. Horizontal & Vertical Key Mills
– Horizontal mills are common for shaft keyways.
– Vertical mills may be used for larger workpieces or deeper slots.
Key Components
– Milling Cutter (Keyseat Cutter) – A specialized end mill with straight or staggered teeth.
– Arbor & Spindle – Holds and rotates the cutter.
– Workholding Fixture – Secures the shaft/pulley in place.
– Feed Mechanism – Controls cutter movement (manual, hydraulic, or CNC-driven).
Common Applications
– Cutting keyways in:
✔ Shafts (for couplings, gears.jpg)
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✔ Pulleys & hubs
✔ Splined components
Advantages of Keyway Milling
– High precision and smooth finish.
– Versatility (can handle different key sizes).
– More flexible than broaching for custom jobs.
Alternative Methods
– Broaching – Faster but requires dedicated tooling per size.
– Wire EDM – For hardened materials but slower.
– Shaping Machine – Older method, less common today.
Would you like details on operating procedures or cutter selection?