snímek 1 -...
TRANSCRIPT
![Page 1: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/1.jpg)
![Page 2: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/2.jpg)
![Page 3: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/3.jpg)
![Page 4: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/4.jpg)
FIGURE 5-1
Types of joints. © Cengage Learning 2012
Welding Joint Design & Welding Symbols – Chapter #5
![Page 5: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/5.jpg)
FIGURE 5-2 Two ways of fitting up an outside corner joint. © Cengage Learning 2012
FIGURE 5-3 Edge joints. © Cengage Learning 2012
Open Corner Closed Corner
Welding Joint Design & Welding Symbols – Chapter #5
![Page 6: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/6.jpg)
NOTE: "fillet weld" = a triangular shaped weld in a corner
Name three types of joints that use fillet welds?
Welding Joint Design & Welding Symbols – Chapter #5
![Page 7: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/7.jpg)
NOTE:
While Leg Size is the usual
method to specify and
measure weld size, the
Effective Throat is a more
accurate measure of fillet
weld strength!
Effective
Throat
Actual ThroatLeg Size2
Leg Size1
Theoretical
Throat
Convexity
¼
How is the size of a fillet determined?
Welding Joint Design & Welding Symbols – Chapter #5
![Page 8: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/8.jpg)
Accessibility for welding
Strength requirements
Cyclic or static loading
Material thickness
Welding process to be used
Material type
Code Requirements
Cost
Side Note: some considerations in selecting a type of joint to
use on a fabrication.
Welding Joint Design & Welding Symbols – Chapter #5
![Page 9: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/9.jpg)
Bevel Groove Vee Groove
J Groove
U GrooveSquare Groove
Name two edge preparations used with butt joints.
Welding Joint Design & Welding Symbols – Chapter #5
![Page 10: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/10.jpg)
Edge preparations used with butt joints.
Welding Joint Design & Welding Symbols – Chapter #5
![Page 11: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/11.jpg)
1
2
1 2 3
4
Single V Groove
Double V Groove
Welding Joint Design & Welding Symbols – Chapter #5
![Page 12: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/12.jpg)
Cost◦ A number of items affect weld cost
FIGURE 5-14 Even a slight change in groove angle can save time and money. © Cengage Learning 2012
Welding Joint Design & Welding Symbols – Chapter #5
![Page 13: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/13.jpg)
![Page 14: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/14.jpg)
Welding Symbols (cont’d.)
3 parts of the welding symbol body:
Arrow
Reference Line
Tail
Welding Joint Design & Welding Symbols – Chapter #5
![Page 15: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/15.jpg)
Welds on drawings ČSN EN ISO 2553
A Z n x L Z(e)
T
A - size
Z – weld sign
n – number of welds
L - length
e – distance
Z – intermittent weld
T – technology information
![Page 16: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/16.jpg)
a7 10 x 300 (200)
a z
z = a . 2
a = 0,5-0,7t
Kde: t= BM thickness
Circumferential weld
Field weld
![Page 17: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/17.jpg)
a7 10 x 300 (200)
111 ČSN EN 05 0705
C (ČSN 5817)
PC (ČSN EN ISO 6947)
OK 12.51
UPPER VIEW
Intermittent weld Opposing weld
![Page 18: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/18.jpg)
Elementary welding symbols
![Page 19: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/19.jpg)
Elementary welding symbols
![Page 20: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/20.jpg)
![Page 21: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/21.jpg)
Dual
Ref.Line
To be welded on the other
side
To be welded on the arrow
side
![Page 22: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/22.jpg)
Examples:
![Page 23: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/23.jpg)
Combination of elementary symbols
![Page 24: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/24.jpg)
Combination of elementary symbols
![Page 25: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/25.jpg)
Dimensioning the weld
![Page 26: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/26.jpg)
Dimensioning
![Page 27: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/27.jpg)
PA
PC
PE
PF
PG
Welding positionsČSN EN ISO 6947
Angled axis
L=45°
L=60°
CIRCLE
Top edge
Top edge
![Page 28: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/28.jpg)
FRAMES -Civil engineering structures - Buildings,
bridges
Mechanical engineering-frames, coverings, shafts
Energy generation and transfer
PRESSURE VESSELS (shells) Processing industry
, Tubular frames-sea platforms
Types of Welded structure
![Page 29: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/29.jpg)
Material
Function of welds
Static, dynamic loaded structure
Loading conditions
Fully loaded welds?
Working environment
Precision of the part - Distortion, inner tension
Productivity, Costs
On site, jobshop welding
On following figures answer
![Page 30: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/30.jpg)
![Page 31: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/31.jpg)
![Page 32: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/32.jpg)
![Page 33: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/33.jpg)
Material
Function of welds
Static, dynamic loaded structure
Loading conditions
Fully loaded welds?
Working environment
Precision of the part - Distortion, inner tension
Productivity, Costs
On site, jobshop welding
On following figures answer
![Page 34: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/34.jpg)
![Page 35: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/35.jpg)
![Page 36: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/36.jpg)
![Page 37: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/37.jpg)
Material
Function of welds
Static, dynamic loaded structure
Loading conditions
Fully loaded welds?
Working environment
Precision of the part - Distortion, inner tension
Productivity, Costs
On site, jobshop welding
On following figures answer
![Page 38: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/38.jpg)
![Page 39: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/39.jpg)
![Page 40: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/40.jpg)
![Page 41: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/41.jpg)
Function of welds - Static, dynamic loaded structure
Loading conditions
Working environment
Precision of the part
Productivity, Costs
Accessibility for welding-On site, jobshop welding
Welding process to be used
Material type
Code Requirements
Cost
To consider for design of Welded structure
![Page 42: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/42.jpg)
![Page 43: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/43.jpg)
Good force transfer
High load capacity
Dynamic loading – full penetration weld
Difficult edge preparation
![Page 44: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/44.jpg)
![Page 45: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/45.jpg)
Load carrying in bending
Easy execution
a increase difficult
Risk of weld quench
![Page 46: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/46.jpg)
![Page 47: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/47.jpg)
For thin sheets
Good smooth look
Easy assembly
![Page 48: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/48.jpg)
![Page 49: Snímek 1 - u12133.fs.cvut.czu12133.fs.cvut.cz/.../files/137/TJC-Lecture-07-Welds-types+symbols.pdf · NOTE: While Leg Size is the usual method to specify and measure weld size, the](https://reader030.vdocument.in/reader030/viewer/2022041302/5e11e118d9561c27055018e8/html5/thumbnails/49.jpg)
No weld is best
Smaller better than big
Humidity = Enemy
Think how the stress pass through structure
Simple rules for design of Welded structure