| Item | Process | Facility | Inspection items | Standard |
01 | Steel material
inspection | | Chemical composition
(EF+LF+VD) | Material standard |
| | | | surface | Ingot inspection
specification |
| | | | Ingot type and weight | Material standard |
| 02 | Material
store | | Division put | warehouse management |
| 1 | Heat | Heat furnace | Temperature/Time | Heating process
specification
Forging production
procedure |
| | | | | |
2
↓ | Forging | Press | Reduction ratio,forging
temperature,deformation,
Surface and dimensions | Forging process card
Forging procedure |
3
↓ | Heat treatment | heat treatment
furnace | heat treatment charts | 1st heat-treatment card
Forging procedure |
| | | | | |
4
↓ | Rough
inspection | | Dimensions, apperance,
Mark | Inspection specification
Forging procedure |
| | | | | |
5
↓ | Rough UT | UT equipment | Single defect, concentrated
Defects bottom wave
attenuation | UT standard or
customer's technical
requirements |
6
↓ | Saw cutting | Saw machine | Dimension | IQC and forging |
7
↓ | rough turning | turning-lathe | Dimension,appearance | Rough machining
drawing |
8
↓ | UT | UT equipment | Single defect, concentrated
defects bottom wave attenuation | UT standard or
customer's technical
requirements |
9
↓ | Q+T
heat treatment | heat treatment
furnace | heat treatment charts | Heating process
specification |
10
↓ | Sampling or machining | machining tool | rough machining drawing
sampling drawing | sample machining
drawing |
11
↓ | mechanical
property test | tensile testing machine/
impact testing machine | ambient temperature,humidity,
Test temp.Sample dimension,
test method | Standard
technical specification |
12
↓ | finish
machining | machining
tool | Dimension,appearance | finish machining drawing |
13
↓ | UT | UT equipment | Single defect, concentrated
Defects bottom wave
attenuation | UT standard or
customer's technical
requirements |
14
↓ | MT | MT equipment | Magnetic particle
indication | Test standard or
Technical requirements |
15
↓ | Mark | Steel seal | marking content | Product standard
Technical requirements
Forging process |
16
↓ | Final
inspection | | Appearance, dimension, mark
acceptance inspection | Product inspection
specification
Product standard
P.O. |
| 17 | Protection/
package | Blasting
Blasting equipment | appearance
coating thickness | Product standard
Technical requirements |
