Consumable inserts may be used in conjunction with single groove welds. The insert is a filler metal that is fused into the root of the joint and becomes a part of the weld. The symbol for indicating a consumable insert is a square shape _ _ and is located on the opposite side of the groove weld symbol, Figure 13.23. When an insert is

specified, a tail is included as part of the welding symbol for inclusion of the class of insert, Figure 13.23. Note that consumable inserts are used in critical applications to make complete joint penetration welds from one side only. They are usually used in pipe welding. Information on consumable inserts may be found in AWS A5.30, published by the American Welding Society.

-CLASS 2 CONSUMABLE INSERT FUSED AT ROOT OF JOINT SYMBOL SIGNIFICANCE

FIGURE 13.23 ■ Application of consumable insert symbol.

SEAL WELDS

Groove welds may be specified as performing a sealing function only, such as when fabricating tanks and other metal containers that must be leakproof. When such is the case, a note is included in the tail of the welding symbol to specify this requirement, Figure 13.24. Note that a consumable insert may be used in the joint of a seal weld.

J SECTION A-A SYMBOL SIGNIFICANCE

NOTE: A GROOVE WELD SYMBOL WITHOUT THE SIZE OF THE WELD DIMENSION REQUIRES COMPLETE JOINT PENETRATION (CJP). IF CJP IS NOT NECESSARY, THE SIZE OF THE WELD DIMENSION IS SPECIFIED TO THE LEFT OF THE WELD SYMBOL.

FIGURE 13.24 ■ Application of a note to the welding symbol for indicating a seal weld.

Graph paper is provided at the end of each review for your use.

1. Identify the types of groove welds represented by the following illustrations:

5. Complete sketch A to show the significance of the weld symbol shown in sketch B.

A.

B.

c.

a.

6. a. Mark the member to be grooved with an X for the following joint.

A.

2. Apply the welding symbol to sketch A that specifies the weld shown by sketch B.

B.

b. What type of weld is to be made? ,

c. What is the length of the weld?

d. What is the contour specified?

e. Is a postweld finish required?

f. Explain your answer to (e).

7. a. Explain the significance of the following welding symbol.

A. B.

4. Add the necessary extension and dimension lines (including the dimensions) to sketch A to show the significance of /4([3]/в) and 90° dimensions shown in sketch B.

A.

B.

b. Mark the member to be grooved with an X.

c. Is a postweld finish required? Explain.

Show by a sketch the significance of the following specification: “Unless otherwise indicated, root openings for all V-groove welds to be

9. Complete the following weld symbol to include a class 3 consumable insert. Also include what

is required to indicate a seal weld. The size of

the weld is to be

13. Refer to illustrations (a) through (i) as follows and complete how the weld would appear in the adjacent illustrations. Include dimensions.

a.

1.061

b.

.06

10. Complete sketch A to show the significance of the welding symbol shown in sketch B.

c.

|.06|

/

G

.25 /0ч

11. a. Explain the significance of the following weld symbol including the note in the tail.

30°

b. Show by a sketch how the welds will appear. ^

J 60°

BACK WELD.125

✓<13 60°

.25

12. Complete the following weld symbol to signify complete joint penetration with a planished flat finish.

UNIT 13: REVIEW B

Refer to the drawing,

SLIDE SUPPORT

1. Sketch the groove welds specified and show all given weld dimensions.

2. What is the total length of fillet welds called for?

3. What is the total length of groove welds called for?

4. What is the root opening of the groove welds?

Slide Support, below.

7. What size is dimension (X

8. The pictorial sketch of the slide support assembly which follows is incorrect.

a. Make the necessary changes to correct it.

b. Dimension the sketch.

c. Sketch the welds called for and identify each.

d. Sketch the joint preparation required by the welding.

5. What is the contour and postweld finish required for the groove welds?

6. a. Which member requires joint preparation?

9. List the location dimensions for the c’ bore hole.

b. Sketch how the joint member would appear.

UNIT 13: REVIEW C

1. a. Explain the significance of the following welding symbol.

Identify the elements shown on the following welding symbol.

H

b. Sketch how the welds will appear.

2. Explain the significance of the following welding symbol.

b. Sketch how the welds will appear.

6. a. Explain what is meant by “back gouging.”

b. Describe where back gouging is indicated on the welding symbol.

3. a. Explain the significance of the following welding symbol.

R

7. a. Identify the elements shown on the following welding symbol.

b. Sketch how the welds will appear.

4. Explain the significance of each element contained in the following welding symbol.

b. Sketch the welds required by the symbol given in question 7a.

a. Identify the elements applied to the following welding symbols.

c. Sketch the weld required by the symbol given in question 8a.

9.

Apply the proper elements to the welding symbol given to specify J-groove welds on both sides, followed by fillet welds on both sides, with postweld machine finished with flat contours.

c.

11. Apply the welding symbol to the following joint members to indicate an other side square groove weld with /8" root opening having a class 3 consumable insert located on the arrow side.

a.

UNIT 13: REVIEW D

Refer to Foldout Drawing 5: Mold Positioner.

1. Identify the views shown on the mold positioner two-page drawing.

Page 1_____________________________________

1

32

Page 2 _

a. What size and kind of pipe is specified at each end of the “Positioner”?

2. List the distance dimension for:

b. What is the length of each piece?

-®—©—®—®- -©—®—О—CD-

-®—®---------------------------------------------

3. Interpret the following welding symbols found on the drawing:

List the dimensions applicable to the following letters, (A thru ®-

W-4

List the size dimensions for cutting the rectan­gular flame cut hole.

a. How many dimensioned square groove welds are required? ------------------------------------------------- b. What is the dimension(s) specified?

ь. Щ- 4 _3_ 16 iO /Ш 16

<^W-3 <^W-3

e. /б	3_	N
8	v4/	G
3 8
1 _ 3 _
f. 48l
1 _ 3 _	4
4І8І
3 8

‘./f

c. With a sketch, illustrate the significance of the dimensions.

W-3 W-4 .

14. a. Sketch the weld specified for the 3" standard pipe. b. What is the significance of the W-3 shown in the tail of the symbol?

8. Identify where surface finishes are specified.

c. What is the length of the pipe required?

9. What is the overlong length of the mold positioner?

15. What is the millimeter equivalent for dimension 2"? Refer to the conversion table on print #1.

10. a. List the sizes of the s-beams specified.

b. Identify the geometric configuration required 16. Identify the detail drawing for the U channel. at each end of the s-beam(s).

17 a. What size material is required for making the “Base” supporters?

11. a. What size pipe is required to be welded to part M and the I-beam?

b. How many supports are required?

b. What is the length for each piece of pipe?

c. What method is to be used for fitting the pin assembly?

c. What is the wall thickness of the pipe? (Refer to Appendix 3.)

18. What material size is required for the “End Plate Assembly”?

12. What is the significance of the following symbol(s)?

©

19. What material size is required for Part ®

Mold positioner

13. List the specifications for welds to be made. W-1_

20. At what point in the assembly are spacers to be installed?

W-2

MATERIAL: STEEL PLATE

DETAIL "A", LEG BASE - 4 PIECES REQ'D SCALE 1 = 1

DETAIL "В" STEEL SPACER - 6 PIECES REQ’D 1 SCALE j = 1

NOTE #1: 2"0 STEEL TUBING, BUTT JOINTS

I I DETAIL "C" SCALE - = 1 4

WELDED ACCORDING TO DETAIL ''C'1

TOLERANCES (EXCEPT AS NOTED)

DETAIL"C“

DECIMAL ± .005

FRACTIONAL ±

16

ANGULAR ±2° F iEVISION S AUTOMATED DYNAMICS CORP. NO. DATE BY 1 2 DRAWN BY L. J. SIY SCALE 1 h 4 MATERIAL STEEL 3 CHK’D DATE DRAWING NO, DE01-11-006-C 4 5 DESIGNED BY L. RUFF APP'D

-^TYP

J

UNIT 13: REVIEW E

Refer to the drawing, Robot Table, pages 186 and 187.

1. Identify the name of the unit to be fabricated.

2. List the tolerances that are to be applied. Decimal:_

Fractional: . Angular:

3. a. How many spacers are required? .

b. What kind of material is to be used for the spacers?

4. a. How many tapped holes are required? b. What size tap is to be used?

10. Modify the following sketch to show how joint (A is to be prepared for welding. Fill in the weld as it would appear at the joint.

11. a. What size angle is required for the square tubing joints?

c. What tap drill size is required?

b. What is the maximum angle size permitted?

c. What is the minimum angle size permitted?

d. Explain the significance of each item in the thread specification.

12. How many pieces of 2" ЦЦ tubing, 17%" long, are required?

5. What scale size is used for the detail drawings?

6. List two reference dimensions found on the print. 7. a. How many 0. 625 drilled holes are required?

13. What is the total length of 2" ЦЦ tubing that is required to fabricate the table? Allow /4" for cutting and finishing each piece.

14. Explain the use of “TYP” as found in the tail of the welding symbols.

b. What is the fractional size of these drills?

8. Identify the weld(s) required for fastening each 15. Explain the purpose of a reference dimension.

leg base to the square tubing.

UNIT 13 Groove Welds ■ 189
17. What do the break lines indicate?	24. a. Sketch the welding symbol showing a multiple weld on one side. Use multiple reference lines.
18. How many fillet welds are required?	b. List the sequence of welds.
19. How many square groove welds are required?
20. How many flare bevel welds are required?	25. a. Sketch the welding symbol found on the drawing showing multiple welds on both sides.
21. Since the size of fillet welds is not specified, what standard should be used for determining their size?	b. Describe the joint preparation required for both sides.
22. Identify the views shown on the drawing.	26. What additional view(s) are needed to better read this drawing?

23. Identify the kind of drawing that is used for the production of the Robot Table.