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		Reaming - Course: Techniques for machining of material. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 21 p.)
			(introduction...)
			1. Purpose of reaming
			2. Design and types of reamers
			3. Preparation for reaming
			4. Reaming with solid reamer
			5. Reaming with floating reamer
			6. Reaming of taper holes
			Table 1 - Recommended values for machining allowances
			Table 2 - Usual kinds of fits

4. Reaming with solid reamer

“Reaming with solid reamer” means machining of close-tolerance holes (fitting holes) by means of a reamer which is fixed in the tailstock of the lathe. The cutting is done on the inner surface of the part in its centre of rotation.

A pre-machined hole is a pre-condition.

- All types of machine reamers can be used depending on the type of hole (through hole, stepped hole, blind hole).
- The machine taper must be all-supporting and thoroughly fitting in the sleeve of the tailstock (no impurities between the locating surfaces).
- If necessary, taper sleeves are to be used.
- The axis of rotation and axis of the tailstock must be in line. In case of deviations, re-alignment is to be made as per Fig. 13.
- The supporting surfaces of the tailstock are to be lubricated. The tailstock must be lockable since otherwise it might be displaced during the operation.
- The working feed is manually effected by means of the tail-stock sleeve. It is to be guided smoothly.
- The true-running accuracy of the workpiece must be ensured. If necessary, the jaws have to be internally turned.