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		Feather Key Joints - Course: Techniques of fitting and assembling component parts to produce simple units. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 19 p.)
			(introduction...)
			Introduction
			Hints on Labour Safety
			1. Purpose of Feather Key Joints
			2. Kinds of Feather Keys and Profile Shafts
			3. Kinds of Feather Key Joints
			4. Stress on the Feather Key Joints
			5. Tools, Devices and Auxiliary Means
			6. Technological Processes for Manufacturing Feather Key Joints and Profile Shaft Joints
			7. Detachment of Feather Key Joints

5. Tools, Devices and Auxiliary Means

Shank cutters and side milling cutters

Shank cutters are used for making round-ended keyways in shafts for fitting key and sliding key joints. Side milling cutters are used for the production of long, ending keyways in shafts for flat keys as well as circular keyways in shafts for Woodruff keys.

Figure 10 Manufacturing of shaft keyways by

1 shank cutter, 2 side milling cutter

Broaches and keyway cutting tools

Broaches and keyway cutting tools are used depending on the respective techniques of “broaching” or “shaping” on the respective machines for the production of hub keyways.

Figure 11 Manufacturing of hub keyway by

1 internal broach, 2 keyway cutting tool

Files and scrapers

Finishing files as well as triangular and flat scrapers are used for deburring the keyways and keys and for re-working and fitting in of the keys in the keyways.

Figure 12 Files and scrapers

Presses and screwing devices

Various kinds of presses and screwing devices are used, by which the keys can be forced into the keyway of the shaft evenly and without canting.

In a simple case, a parallel vice with light metal protective jaws is used.

Figure 13 Screwing device with Vee support

Hammers and non-ferrous metal drift pins

Light metal hammers are used for loosening the machine parts as well as locksmith’s hammers and non-ferrous metal drift pins for drifting keys out of ending keyways.

Figure 14 Hammers and non-ferrous metal drift pins

Pliers and screw drivers

Adjustable pliers are for loosening sticking feather keys out of the shaft keyways, pliers for shaft snap rings as well as screw drivers for fastening and loosening holding bolts and forcing screws in sliding feather keys.

Figure 15 Assembly tools

1 adjustable pliers, 2 pliers for shaft snap rings, 3 screw driver

Extractors

Extractors or pullers are used for pulling the hub from the shaft, if these machine parts stick together very firmly and must be loosened.

Figure 16 Puller (extractor)

What technique is used for making the keyways in the shafts?
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What techniques are used for making the keyways in the hubs?
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What techniques are used for reworking of feather keys?
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