VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
Virtual ERW – it’s a simple, practical and powerfull tool to computer graphical evaluation of heat affect zone to electric resistance welding steel tubes and pipes.
This software use only a digital macro photography from sample of weld, changing traditional subjective evaluation from ERW weld to complete objective and quantitative evaluation.
Do, automatically, one report with 10 basic points, to check the mains requirements to ajust weld box to good weld.
Then, in very short time, permit to give definitions and corrective action to operation line.
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
1° STEP:
a) Take a digital picture from weld zone of the tube attached Nital 3%
b) Type only outside diameter and wall thickness in the excel sheet to obtain the standard graphical of weld zone (from data bank prepared before). This step provide ideal coordinates for each point required, then will be very easy to ajust real points.
c) The software draw a transparent graphical (ideal weld zone) over real digital picture.
d) Move and ajust, size and position, from real digital picture under the ideal graphical.
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
2° STEP:
a) ajust (type) coordenates from each contornous points (red points) and for each quadrant (A,B,C, D e E)
A B
C
DE
F G
H
IJ
b) ajust (type) coordenates from center (blue points) for each isothermic lines (F,G)
c) Ajust (type) coordenates from each contornous points (yellow points) to cap (H,I e J)
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
A1B1
C1
D1 E1
A2B2
A3B3
A4B4
F1 F2F3F4
C2
D2E2
C3
D3E3
C4
D4E4
H1
I1 J1
H2
I2J2
G1 G2G3G4
H3
I3J3
H4
I4 J4
A e B – define external and internal radius (left and rigth)
C e F – define UPSET and ISOTHERMIC 1
D e G – define UPSET and ISOTHERMIC 2
E – define UPSET, ISOTHERMIC 3 and DEVIATION BOND LINE
H,I e J – define CAP
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
Please, see, step by step, the execution of graphical solution.
By calculations: radius, wall thickness, edge off-set (yellow lines), bond line deviation (interrupted yellow lines), and hourglass shaped and relations (blue lines) are determined.
Check the flow lines drawn (red lines).
By integrations, individual areas, by quadrants, are calculated (heat affected zones , upsets and caps).
By derivation, flowline angles (green lines) are determinated.
Wait ...
END -7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
-7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
• REPORTS:
a) by asymmetries => comparative evaluations from vertical and horizontal planes (by quadrants) in real picture
b) by references standards => comparative evaluations checked against references standards (differences between real and ideal weld zones)
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
VIRTUAL TUBES & PIPES - Flávio Braga – 55-12-81210788 - [email protected]
VIRTUAL ERW COMPUTER GRAPHICAL EVALUATION OF HEAT AFFECT ZONE TO ELETRIC RESISTANCE WELDING STEEL TUBES AND PIPES
If you need a true report, ask by e-mail.We are development Virtual SAW too.
END