| |
SR.NO |
STAGE |
CHARACTERISTICS |
TYPE/CHECK |
ACCEPTANCE NORMS |
RESPONSIBILITY |
REMARK |
P |
W |
R |
| 1 |
RAW METALS |
CHEMICAL |
CHECK-1 PER HEAT |
STANDARD |
1 |
.... |
1,2 |
|
COMPOSITION |
PER SIZE (DIA) OR |
OPERATING |
|
|
|
|
| |
PER SIZE |
PROCEDURE |
|
|
|
|
SURFACE |
VISUAL |
........ |
1 |
.... |
.... |
|
DIMENSION |
MEASUREMENT |
|
1 |
.... |
.... |
|
NON DESTRUCTIVE |
SURFACE DEFECTS |
REQUIRED |
1 |
.... |
2 |
|
TEST |
|
SPECIFICATION |
|
|
|
|
IDENTIFICATION |
COLOR CODING |
|
1 |
.... |
1,2 |
|
2 |
IN PROCESS INSPECTION |
CHECK DIMENSIONS OF THE PIECES SUBSEQUENTLY DURING THE PROCESS |
|
| |
| [A] |
STUD/BOLTS |
SR.NO |
STAGE |
CHARACTERISTICS |
TYPE/CHECK |
ACCEPTANCE NORMS |
RESPONSIBILITY |
REMARK |
P |
W |
R |
1) |
CUTTING & FORGING |
LENGTH & DIA DIMENSION |
MEASUREMENT MEASUREMENT |
REQUIRED SPECIFICATION |
1 |
.... |
.... |
|
2) |
MACHINING & CHAMFERING |
DIMENSIONS END FLATNESS |
MEASUREMENT VISUAL |
IS 1363 PT.1,2 O
R IS 1364 PT.1,2 OR
ANSI B 18.2.1 |
1 |
.... |
.... |
|
3) |
CENTERLESS
GRINDING |
DIAMETER |
MEASUREMENT VISUAL |
IS 4218 PT. VI
OR ANSI B 1.1 |
1 |
.... |
.... |
|
4) |
THREAD
ROLLING |
DIMENSION
CONFORMITY |
GAUGING |
REQUIRED
SPECIFICATION |
1 |
.... |
.... |
|
5) |
HEAT
TREATMENT |
HEAT TREATMENT
CHART |
MEASUREMENT
MECHANICAL |
REQUIRED
SPECIFICATION |
1 |
.... |
2 |
|
6) |
INTERNAL MECHANICAL
TESTING |
HARDNESS TENSILE |
MEASUREMENT MECHANICAL |
REQUIRED
SPECIFICATION |
1 |
.... |
.... |
|
|
| |
| [B] |
NUTS ( HEX SERIES & HOT FORGED ) |
SR.NO |
STAGE |
CHARACTERISTICS |
TYPE/CHECK |
ACCEPTANCE NORMS |
RESPONSIBILITY |
REMARK |
P |
W |
R |
| 1) |
CUTTING |
LENGTH & DIA |
MEASUREMENT |
REQUIRED SPECIFICATION |
1 |
.... |
.... |
|
| 2) |
FORGING |
DIMENSION |
MEASUREMENT |
REQUIRED SPECIFICATION |
1 |
.... |
.... |
|
| 3) |
MACHINING |
DIMENSION
CONFORMITY |
MEASUREMENT |
IS 1364 PT.3,4 & 5 OR
ANSI-B 18.2.2 |
1 |
.... |
.... |
|
| 4) |
THREADING |
DIMENSION
CONFORMITY |
GAUGING |
IS 4218 PT. VI ORANSI B 1.1 |
1 |
.... |
.... |
|
| 5) |
HEAT TREATMENT |
HEAT TREATMENT CHART |
TEST |
REQUIRED SPECIFICATION |
1 |
.... |
2 |
|
| 6) |
INTERNAL MECHANICAL TESTING |
HARDNESS |
MEASUREMENT |
REQUIRED SPECIFICATION |
1 |
.... |
.... |
|
TENSILE |
MECHANICAL |
|
| |
[C] |
FINAL INSPECTION FOR EACH SIZE OF STUD/BOLT/NUT |
SR.NO |
STAGE |
CHARACTERISTICS |
TYPE/CHECK |
ACCEPTANCE NORMS |
RESPONSIBILITY |
REMARK |
P |
W |
R |
| |
|
|
|
|
|
|
|
|
1) |
STUD OR BOLTS |
DIMENSION |
MEASUREMENT & GAUGING |
REQUIRED SPECIFICATION |
1 |
.... |
.... |
|
2) |
NUTS |
DIMENSION |
MEASUREMENT & GAUGING |
REQUIRED SPECIFICATION |
1 |
.... |
.... |
|
3) |
L.P.E. |
IF REQUIRED
SURFACE DEFECTS |
MECHANICAL |
P.O. SPECIFICATION |
1 |
2 |
1 |
|
| 4) |
CHEMICAL ANALYSIS |
ANALYSIS STUD/BOLT/NUT |
CHEMICAL |
P.O. SPECIFICATION |
1 |
.... |
2 |
|
|
| |
| [D] |
INSPECTION AGENCY |
SR.NO |
STAGE |
CHARACTERISTICS |
TYPE/CHECK |
ACCEPTANCE NORMS |
RESPONSIBILITY |
REMARK |
P |
W |
R |
1) |
VISUAL |
VISIUAL/ DIMENSION STUD/BOLT/NUT |
MEASUREMENT |
P.O. SPECIFICATION |
1 |
2 |
.... |
|
2) |
MECHANICAL
TEST |
HARDNESS/ PHYSICAL STUD/BOLT/NUT |
PHYSICAL/ HARDNESS/ PROOF LOAD |
P.O. SPECIFICATION |
1 |
.... |
.... |
|
3) |
L.P.E. |
IF REQUIRED SURFACE DEFECTS |
MECHANICAL |
P.O. SPECIFICATION |
1 |
2 |
2 |
|
4) |
CHEMICAL ANALYSIS |
ANALYSIS STUD/BOLT/NUT |
CHEMICAL |
P.O. SPECIFICATION |
1 |
.... |
2 |
|
|
| |
| LEGEND : - P- PERFORM W- WITNESS R- REVIEW 1 - FOR VENDOR 2 - INSPECTION AGENCY |
| |
