Smaw11 WK3L1 2.1 PDF
Smaw11 WK3L1 2.1 PDF
Smaw11 WK3L1 2.1 PDF
CapSLET
Capsulized Self - Learning
Empowerment Toolkit
CODE
LO 2: Weld Butt joint (Close) in flat and
LEARNING
horizontal
COMPETENCY
position TLE_IAAW9-12FW-IIIb-f-2
2.1 Perform stringer beads in accordance with
welding standard.
1. Identify the different tools and equipment used in performing a square
edge (close) butt-weld in flat position;
LEARNING 2. Follow the procedure in performing a square edge (close) butt-weld in
OBJECTIVES flat position.
3. Perform a square edge (close) butt-weld in flat position.
IMPORTANT: Do not write anything on this material. Write your answers on the learner’s activity and
assessment sheets provided separately.
UNDERSTAND
Topic: Weld butt joint (close) in flat and horizontal position
A welding joint-is a point or edge where two or more pieces of metal joint together. They are formed by
welding two or more work pieces according to a particular geometry.
MATERIALS/SUPPLIES:
1. mild steel plates,3.2mmx75mmx150mm 2pcs.
2. electrode, E6013, 3.2mm diameter.
TOOLS AND EQUIPMENT
1.AC welding machine with accessories
2. chipping hammer
3. steel brush
4. welding helmet/shield
5. leather gloves
6. leather apron
7. portable grinder
WELDING PROCEDURE
1. Tack weld the plates 10mm from each end and at the center
with no gap between.
2. Present the plates to allow for angular distortion.
3. Lay the plate flat on the table with the side which is not
tacked on top.
4. Weld first the side which is not tacked using an electrode at
70 degree travel angle and 90 degrees work angle.
NOTE: Maintain an arc length of 2-3mm.
5. Chip the slag and brush the bead with a wire brush.
NOTE: Wear safety glasses or a chipping shield in your
welding helmet.
6. Inspect the run for uniform width.
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7. Turn the plate over and grind the tacks flushed.
NOTE: Brush the plate to remove the scales using a wire brush.
8. Weld the reverse side following the same procedure.
Let’s Practice!
REMEMBER
Key Points
TRY
Let’s see how much have you learned today!
(Answer on the Learner’s Activity and Assessment sheets.)
II.A. Directions: Read the questions/statement carefully. Choose the correct answer and write only the
letter of the correct answer.
1. What kind of electrode is used in close butt-weld in flat position?
A. E-6012
B. E-6011
C. E-6013
D. E-6015
2. How many millimeters should tack weld in between the two plates of a weld metal?
A. 15mm
B. 11mm
C. 10mm
D. 12mm
3. Which of the following tools is used to remove the scales on the plate?
A. portable grinder
B. steel brush
C. chipping hammer
D. grinder
4. What is the arc length to maintain in welding the butt weld?
A. 3-4mm
B. 2-3mm
C. 3-5mm
D. 1-4mm
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5. What is the recommended travel angle and work angle for welding flat position?
A. 65,90 degree
B. 75,90 degree
C.75-85,90 degree
D. 75,95 degree
B. ENUMERATION.
What are the tools needed in Weld butt joint give at atleast
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This LR is produced and distributed locally without profit and will be used for
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learning resource..
Written by:
WILFRIDO S.SERNA
MasterTeacher - I
Talisayan National High School
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CapSLET
Learner’s Activity and Assessment Sheets
SUBJECT SMAW
NAME
YEAR AND SECTION
TEACHER’S NAME
SAQ 1: : What are the different tools used in these activity?
_________________________________________________________________________
_________________________________________________________________________
What is Digestion?
SAQ 2: Why is it important to wear safety glasses or a chip shield in your welding
helmet?
_________________________________________________________________________
What is Digestion?
Let’s Practice!
TRY
II.A. MULTIPLE CHOICE
1. 6.
2. 7.
3. 8.
4. 9.
5. 10.
B. ENUMERATION. List down at least 5 tools and equipment in Weld butt joint
1-5
1.
2.
3.
4.
5.
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Topic: Weld butt joint (close) in flat and horizontal position
Learning Competency: 2.1 Perform stringer beads in accordance with welding standard.
ANSWER KEY
LET’S PRACTICE
__3_A.
__8_B.
__6_C.
__7_D.
__1_E.
__2_F.
__4_G.
__5_H.
TRY
I.A.
1. C.
2. C.
3. B
4. B.
5. C.
B.
1.AC welding machine with accessories
2. chipping hammer
3. steel brush
4. welding helmet/shield
5. leather gloves
6. leather apron
7. portable grinder
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Republic of the Philippines
Department of Education
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ROWENA J. JULSANI
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________________________________________________________________________
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