344
INTBRNAL STRAINS IN GUN FORGINGS.
Tube 20691 B3.
Muzzle Slice.
State of internal strains and stresses at different phases of the slice.
SLICE INTACT.
Interior diameter of slice, 4".23; exterior diameter of slice, 9".07.
3 4
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1		Inches. 4.37615 5.13895 7.16515 8.90525	Inch.	Inch. . 0063 .0009	Pounds.	Pounds. 43,200 5,300
2						
3			.00205 .00095		8,600 3,200	
4						
						
Rings 1 and 4 detached; rings 2 and 3 in the slice.
interior diameter of slice, 5".00; exterior diameter of slice, 7".30.
Rings.	Present mean diameters.	Strains.		Stresses per square inch.	
		Tension.	Compres- sion.	Tension.	Compres- sion.
1 detached		Inches. 4.38245 5.13865 7.1651 8.9043	Inch.	Inch.	Pounds.	Pounds.
3			.0020	.0012	8,400	7,000
4 detached						
					
RINGS ALL DETACHED.
2 detached		5.13985 7.1631				
3 detached