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Royal Ordnance Factory
Nottingham

A Photographic History
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Processes

Section 9 : Autofrettage
| Hydraulic Autofrettage | Swage Autofrettage |

Hydraulic AF

TH_P40901_001 TH_P40901_002 TH_P40901_003 TH_P40901_004
P40901_001
Assembling Barrel into Hydraulic AF frame
P40901_002
Barrel assembled in Hydraulic AF rig
P40901_003
Barrel showing failure under Hydraulic pressure
P40901_004
Unknown

TH_P40901_005 TH_P40901_006 TH_P40901_007 TH_P40901_008
P40901_005
Barrel in Hydraulic rig - alignment measurement gauges
P40901_006
Hydraulic AF area - LTT ovens at rear
P40901_007
Barrel - failed under pressure
P40901_008
Barrel in Hydraulic AF rig

TH_P40901_009 TH_P40901_010 TH_P40901_011
P40901_009
Quality checking measurement gauges before starting
P40901_010
Hydraulic Pressure Gauge
P40901_011
Barrels being given LTT process

Swage AF

TH_P40902_001 TH_P40902_002 TH_P40902_003 TH_P40902_004
P40902_001
P40902_002
P40902_003
P40902_004

TH_P40902_005
P40902_005

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