2016
District Welding Fab Contest
SkiMJS\
O K L A H O M A
The 2016 Oklahoma SkillsUSA District Welding Contest will test the ability for students to take a
company blueprint and create a complete product. The blueprint provided will indicate metric
dimensions. Students will be required to convert the measurements to US standard or utilize metric
measuring devices. Also, the customer is requesting a change order on one feature of the provided
blueprint.
Students should use the blueprint provided and the following pages to identify the bill of materials,
welding process to be used, tools allowed in the contest, and any change orders requested by the
customer.
- 600
23.625"
mm -
15"mm
380
Typ
SMA1
1 /8
5.9"
17.75"
Typ
GMA
4PI.
r
•
Typ
GMAW
i
140
mm 1
5.5"
,
1
11.8125"
300
mm
r-
15.75"
1 of 3
v
Typ
GMAW
SkiMJS\
O K L A H O M A
2016
District Welding Fab Contest
Bill of Materials:
#2 – 12”X 48”X 3/16” Tread Plate
#1 – 1”X 1”X 72” 14 gauge Square Tubing
#1 – 1”X 1”X 63” 14 gauge Square Tubing
#1 – 3/4”X 3/4”X 72” 14 gauge Square Tubing
Components:
QTY
A 4
B 4
C 4
D 4
E 1
SIZE
19.685 X 15"
1" X 1" X 17.75"
1" X 1" X 11.8125"
3/4" X 3/4" X15.75
6.375" X 6.375"
ITEM
Bowl Sides – Tread Plate
Bowl Cradle Top – (14ga) Square Tubing
Legs – (14ga) Square Tubing
Horizontal Supports – (14ga) Square Tubing
Mesh Grate See Change Order
Tools Allowed:
Oxy-Fuel Cutting Torch
Hand Grinder
Clamps
Metal Marking Pen or Soap Stone
Measuring Tape
PPE
Compass
Straight Edge (For Marking)
Square
Mobile Phone, Tablet, or Metric/US Standard Conversion Chart for converting or calculating
metric to US standard conversions
Processes:
Welding:
Fabricators will use the welding symbols to identify the welding process for welding. All
SMAW welding will be with 7018 1/8”.
Cutting:
All metal cutting will be performed with hand held oxy-fuel cutting torches. The straight
edge can only be used in the marking of the material. NO edge guides will be used in the
cutting of materials. A score of zero will be assigned to the OFG portion of the scoring
rubric if a guide is used.
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SkiMJS\
O K L A H O M A
2016
District Welding Fab Contest
Grinding:
Grinding will only be allowed to clean oxy-fuel slag. Judges will deduct points for
excessive grinding if they feel the grinding played a major role in the fit-up.
Change Order:
The customer likes the look and design of the fire pit. But, the customer plans to use the
fire pit on an outdoor patio that is textured, stained, and sealed concrete. She does not
want the ashes and hot coals falling through the mesh grate in the original design onto
her patio.
The sales department conferred with the design engineers and determined the fire pit
would work with the bottom sealed with a square made of the 3/16” tread plate. The
engineers also recommended that some form of removable grate or slotted plate be
added to suspend the wood between 1” – 2”off of the bottom of the fire pit. This
suspending plate would allow more combustion air to reach the bottom of the wood in
the unit and promote a superior clean burning fuel. The result will be more fire and less
smoke.
The fabricator is asked to fabricate the 3/16” square tread plate to seal the bottom of
the fire pit and a perforated or slotted plate from the drops created from the original bill
of materials. It should meet the provided parameters from the engineers, but can be of
the fabricator’s design. The welding process for the bottom seal plate will be SMAW –
7018 - 1/8, inside weld, and weld all around. The judges will score the fabricator’s
design.
JUDGING NOTES:
•
•
•
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Judging the innovation and creativity is a subjective score. If the judges are uncomfortable with
the subjectivity, then they should judge the team’s Change Order Product by comparing the
product to the engineering parameters (ie. 1-2” off the bottom, slotted, removable…) The
option also exists for giving each team 50 points on the rubric and eliminate judging that criteria
of the rubric.
The Oxy-fuel score can be derived from judging the drops if the judges want un-welded cuts to
score
In most contests, adaptations must be made. As long as everyone is informed of the criteria or
change and all contestant’s products/processes/behaviors are judged equally, the contests will
produce the correct winners