Table of contents
Task C-10 Fits and fastens sub-components and components
Task descriptor
After fabricating sub-components of a product, metal fabricators (fitters) must assemble them to create a component. They must follow sequential steps to do the job while staying within tolerances and specifications. While the bulk of these operations are done within the fabrication shop, occasionally, field assembly work may be done on the work site.
C-10.01 Assembles jigs
C-10.01 Assembles jigs
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.01.01P |
select materials for jig |
materials for jig are selected based on factors |
| C-10.01.02P |
select and use tools and equipment |
tools and equipment are selected and used according to product being built |
| C-10.01.03P |
establish necessary axes, planes and work points |
necessary axes, planes and work points are established according to product being built |
| C-10.01.04P |
lay out jig location |
jig location is laid out according to fabrication drawing |
| C-10.01.05P |
fasten stops and hold-downs to jig |
stops and hold-downs are fastened to jig for accuracy and for ease of removal of fabricated product |
| C-10.01.06P |
mark jigs for future use with information |
jigs are marked with information for future use |
Range of variables
- factors include: cost, availability, accuracy, quantity requirements of finished products
- jig location includes: plate, shop horses, floor surface
- information includes: part numbers, material required, work orders
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.01.01L |
demonstrate knowledge of jigs, their characteristics, applications and limitations |
identify jigs and describe their characteristics, applications and limitations |
| describe factors considered when choosing materials for jigs |
| describe information used to mark jigs for future use |
| C-10.01.02L |
demonstrate knowledge of assembling jigs |
describe procedures to assemble jigs |
| identify tools and equipment used for assembling jigs, and describe their characteristics, applications, limitations and operation |
Range of variables
- factors include: cost, availability, accuracy, quantity requirements of finished products
- information includes: part numbers, material required, work orders
C-10.02 Determines sequence for assembly
C-10.02 Determines sequence for assembly
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.02.01P |
refer to documents and drawings for detailed information |
documents and drawings are referred to for detailed information |
| C-10.02.02P |
visualize finished components prior to assembly |
finished components are visualized prior to assembly |
| C-10.02.03P |
define steps in process |
steps in process are defined for efficiency and accuracy to prevent re-work while considering aspects |
| C-10.02.04P |
coordinate assembly in conjunction with other workers |
assembly is coordinated in conjunction with other workers |
Range of variables
- detailed information includes: size of product, types of material
- aspects include: availability of equipment, size of product, location of work site
- other workers include: co-workers, other trades
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.02.01L |
demonstrate knowledge of determining sequence of assembly |
describe procedures to determine sequence of assembly |
| describe aspects to be considered while determining sequence of assembly |
| describe relevance of starting point |
| describe importance of coordinating assembly with other workers |
Range of variables
- aspects include: availability of equipment, size of product, location of work site
- other workers include: co-workers, other trades
C-10.03 Assembles sub-components and components
C-10.03 Assembles sub-components and components
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.03.01P |
select and use tools and equipment |
tools and equipment are selected and used according to type of assembly and space limitations for assembly |
| C-10.03.02P |
attach sub-components and components |
sub-components and components are attached using joining methods and fastening devices |
| C-10.03.03P |
verify component is torqued |
component is torqued according to manufacturers’ and client specifications |
| C-10.03.04P |
verify component placement |
component is placed according to drawings |
Range of variables
- tools and equipment include: impact wrenches, torque wrenches, bolt tension measuring devices
- joining methods include: bolting, welding
- fastening devices include: pins, rivets, bolts, clips
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.03.01L |
demonstrate knowledge of assembling components and sub-components |
describe procedures and joining methods to assemble components and sub-components |
| identify tools and equipment used for assembling components and sub-components, and describe their characteristics, applications, limitations and operation |
| describe assembly constraints |
| describe site accessibility and layout requirements to be considered when assembling components and sub-components |
| identify types of fastening devices, and describe their specifications and applications |
| identify dimensional tolerances |
Range of variables
- joining methods include: bolting, welding
- tools and equipment include: impact wrenches, torque wrenches, bolt tension measuring devices
- assembly constraints include: building size, equipment limits
- fastening devices include: pins, rivets, bolts, clips
C-10.04 Sets fabricated components in place
C-10.04 Sets fabricated components in place
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.04.01P |
verify location of installation |
location of installation is verified according to erection drawings |
| C-10.04.02P |
plan for possible installation difficulties and adapt to shifting work site needs |
possible installation difficulties are anticipated and installation is adapted to shifting work site needs |
| C-10.04.03P |
secure work area |
work area is secured to ensure area is clear of personnel and obstructions |
| C-10.04.04P |
fit, place and adjust component |
component is fit, placed and adjusted ensuring it is level, plumb, at the correct elevation and orientated according to drawings |
Range of variables
- possible installation difficulties include: access to work area, equipment available
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.04.01L |
demonstrate knowledge of setting fabricated components in place |
describe procedures to set fabricated components in place |
| describe possible installation difficulties and how to adapt |
Range of variables
- possible installation difficulties include: access to work area, equipment available
C-10.05 Joins components on site
C-10.05 Joins components on site
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-10.05.01P |
determine joining methods |
joining methods are determined from drawings |
| C-10.05.02P |
select and use tools and equipment |
tools and equipment are selected and used according to type of assembly |
| C-10.05.03P |
attach components together |
components are attached together according to procedures and manufacturers’ specifications |
Range of variables
- joining methods include: bolting, welding
- tools and equipment include: wrenches, impact wrenches, torque wrenches, bolt tension measuring devices
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-10.05.01L |
demonstrate knowledge of joining components on site |
describe procedures to join components on site |
| identify tools and equipment used for joining components on site, and describe their characteristics, applications, limitations and operation |
| identify joining methods |
| identify types of fastening devices, and describe their specifications and applications |
Range of variables
- tools and equipment include: wrenches, impact wrenches, torque wrenches, bolt tension measuring devices
- joining methods include: bolting, welding
- fastening devices include: pins, rivets, bolts, clips
Task C-11 Performs welding activities
Task descriptor
Depending on the work environment and jurisdictional regulations, metal fabricators (fitters) may tack and then pass the weldment on to welders, or see the welding process through to its completion.
C-11.01 Applies heat prior to tack welding
C-11.01 Applies heat prior to tack welding
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.01.01P |
determine pre-heat temperature of component material |
pre-heat temperature of component material is determined according to work site welding procedures |
| C-11.01.02P |
select and use temperature measuring tools |
temperature measuring tools are selected and used to stay within welding parameters |
| C-11.01.03P |
select and use equipment for pre-heating |
equipment for pre-heating is selected and used according to specifications |
| C-11.01.04P |
measure temperature of heated materials |
temperature of heated materials is measured to prevent distortion and cracking |
Range of variables
- temperature measuring tools include: temperature sticks, digital heat sensors
- equipment for pre-heating includes: rosebuds, tiger torches, induction heaters
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.01.01L |
demonstrate knowledge of applying heat prior to tack welding |
describe procedures to apply heat prior to tack welding |
| identify equipment for pre-heating, and describe their characteristics, applications, limitations and operation |
| identify temperature measuring tools, and describe their characteristics, applications, limitations and operation |
| identify pre- and post-weld heat requirements |
| identify indicators of temperature |
| identify types, sequence and sizes of tacks, and describe their specifications and applications |
| describe procedures for joint design and material preparation |
| C-11.01.02L |
demonstrate knowledge of codes, standards and certification requirements for tacking |
describe codes, standards and certification requirements for tacking |
Range of variables
- equipment for pre-heating includes: rosebuds, tiger torches, induction heaters
- temperature measuring tools include: temperature sticks, digital heat sensors
- indicators of temperature include: colour of heated materials, heat affected zone
C-11.02 Performs tack welding
C-11.02 Performs tack welding
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.02.01P |
select and use welding tools and equipment |
welding tools and equipment are selected and used according to materials and workplace procedures |
| C-11.02.02P |
install protection to near-by components |
protection is installed to protect near-by components from damage |
| C-11.02.03P |
determine position and size, and apply tacks |
position and size are determined, and tacks are applied according to component being tacked |
| C-11.02.04P |
remove defective tacks |
defective tacks are removed using tools without damaging base metal |
Range of variables
- welding tools and equipment include: gas metal arc welding (GMAW), shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW)
- protection includes: metal plates, heat blankets
- damage includes: sparks, burn marks
- tools include: chisels, grinders, gougers
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.02.01L |
demonstrate knowledge of performing tack welding |
identify types of metal, and describe their characteristics, applications, limitations and operation |
| describe procedures to tack weld |
| identify types, sequence and sizes of tacks, and describe their specifications and applications |
| identify weld sizes, and describe their characteristics and applications |
| describe back stepping and weld sequence |
| C-11.02.02L |
demonstrate knowledge of welding tools and equipment, their characteristics, applications, limitations and operation |
identify welding tools and equipment, and describe their characteristics, applications, limitations and operation |
| identify hazards associated with welding processes |
| identify welding processes, and describe their characteristics, applications, limitations and operation |
| identify power sources, and describe their specifications and applications |
| describe gas cylinder safety measures |
| describe characteristics of shielding gases |
| identify electrodes and wires, and describe their characteristics, applications, limitations and operation |
| describe filler metal transfer modes |
| describe amperage (wire feed speed) and voltage (wire stick out) characteristics |
| C-11.02.03L |
demonstrate knowledge of codes, standards and certification requirements for tacking and welding |
describe codes, standards and certification requirements for tacking and welding |
Range of variables
- characteristics include: ductility, grade
- welding tools and equipment include: GMAW, SMAW, GTAW
- hazards include: fire, toxic fumes, ultraviolet light
- welding processes include: GMAW, SMAW, GTAW, flux cored arc welding (FCAW), metal cored arc welding (MCAW)
C-11.03 Minimizes welding distortions
C-11.03 Minimizes welding distortions
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.03.01P |
estimate possible distortion to stay within allowances |
possible distortion is estimated to stay within allowances by referencing specifications |
| C-11.03.02P |
select and use restraints |
restraints are selected and used to counteract distortion |
| C-11.03.03P |
determine sequence of welding |
sequence of welding is determined to minimize warping, pulling and cracking |
| C-11.03.04P |
limit distortion and stress in component |
distortion and stress in component is limited by applying stress removal methods |
Range of variables
- restraints include: strong backs, clamps, braces, jigs
- stress removal methods include: peening, heating
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.03.01L |
demonstrate knowledge of minimizing welding distortions |
describe procedures to minimize welding distortions |
| identify restraints used to counteract distortion |
| explain importance of determining sequence of welding |
| describe stress removal methods |
| describe causes and effects of welding distortions |
Range of variables
- restraints include: strong backs, clamps, braces, jigs
- stress removal methods include: peening, heating
- causes and effects of welding distortions include: longitudinal, angular, transverse
C-11.04 Applies welding processes
C-11.04 Applies welding processes
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.04.01P |
select, set up and use welding equipment |
welding equipment is selected, set up and used according to workplace welding procedures, codes and standards |
| C-11.04.02P |
select and use filler metals |
filler metals are selected and used according to specifications of base material |
| C-11.04.03P |
select and use ventilation equipment |
ventilation equipment is selected and used to prevent inhalation of particles and fumes |
| C-11.04.04P |
weld components to required size |
components are welded to required size according to specifications |
| C-11.04.05P |
adjust amperage, voltage and gas flow rates |
amperage, voltage and gas flow rates are adjusted to achieve desired weld profile |
| C-11.04.06P |
manipulate welding processes |
welding processes are manipulated to achieve weld profile according to welding details |
| C-11.04.07P |
remove slag and spatter with tools and equipment |
slag and spatter are removed with tools and equipment to make weld visible for inspection |
| C-11.04.08P |
repair welding defects using grinders and gougers |
welding defects are repaired using grinders and gougers |
Range of variables
- welding equipment includes: GMAW, SMAW, GTAW
- filler metals include: wire, electrodes
- ventilation equipment includes: fume extractors, suction lines, respirators
- specifications include: number of passes, weld profile
- welding processes include: GMAW, SMAW, GTAW, FCAW, MCAW
- tools and equipment include: chipping hammers, grinders, wire brushes
- welding defects include: porosity, undercut, crater cracks
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.04.01L |
demonstrate knowledge of welding equipment, their characteristics, applications, limitations and operation |
identify welding equipment and describe their characteristics, applications, limitations and operation |
| describe gas cylinder safety measures |
| describe characteristics of shielding gases |
| identify electrodes and wires, and describe their characteristics, applications, limitations and operation |
| describe amperage (wire feed speed) and voltage (wire stick out) characteristics |
| C-11.04.02L |
demonstrate knowledge of ventilation equipment, their characteristics, applications, limitations and operation |
identify ventilation equipment and describe their characteristics, applications, limitations and operation |
| C-11.04.03L |
demonstrate knowledge of applying welding processes |
describe welding processes, and describe their characteristics, applications, limitations and operation |
| identify types of metal, and describe their characteristics, applications, limitations and operation |
| identify filler metals and their associated transfer modes |
| identify hazards associated with welding processes |
| identify possible welding defects |
| identify tools and equipment used to remove slag and spatter |
| identify weld sizes, and describe their characteristics, applications, limitations and operation |
| describe back stepping and weld sequence |
| C-11.04.04L |
demonstrate knowledge of codes, standards and certification requirements pertaining to welding |
describe codes, standards and certification requirements pertaining to welding |
Range of variables
- welding equipment includes: GMAW, SMAW, GTAW
- ventilation equipment includes: fume extractors, suction lines, respirators
- welding processes include: GMAW, SMAW, GTAW, FCAW, MCAW
- characteristics (of metals) include: ductility, grade
- filler metals include: wire, electrodes
- hazards include: fire, toxic fumes
- welding defects include: porosity, undercut, crater cracks
- tools and equipment include: chipping hammers, grinders, wire brushes
C-11.05 Corrects welding distortions
C-11.05 Corrects welding distortions
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-11.05.01P |
measure amount of distortion |
amount of distortion is measured using equipment to determine if it is within tolerance |
| C-11.05.02P |
rectify distortions |
distortions are rectified using methods according to specifications |
| C-11.05.03P |
select and use tools and equipment |
tools and equipment are selected and used |
Range of variables
- equipment include: plumb bobs, straight edges, levels, string line
- methods include: mechanical, thermal
- tools and equipment include: come-alongs, hydraulic rams, torches
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-11.05.01L |
demonstrate knowledge of correcting welding distortions |
describe methods used to rectify welding distortions |
| identify tools and equipment to correct welding distortions, and describe their characteristics, applications, limitations and operation |
| identify equipment to measure amount of distortion |
| identify types of metal, and describe their characteristics, applications, limitations and operation |
| describe causes and effects of welding distortions |
| describe mechanical forces required for correction |
| C-11.05.02L |
demonstrate knowledge of jurisdictional regulations and certification requirements for welding |
describe jurisdictional regulations and certification requirements for welding |
Range of variables
- methods include: mechanical, thermal
- tools and equipment include: come-alongs, hydraulic rams, torches
- equipment include: plumb bobs, straight edges, levels, string line
- characteristics (of metals) include: ductility, grade
- causes and effects of welding distortions include: longitudinal, angular, transverse
Task C-12 Completes project
Task descriptor
This is the final stage of the process, where metal fabricators (fitters) ensure the product meets jurisdicitional regulations and customer specifications.
C-12.01 Identifies type of finish
C-12.01 Identifies type of finish
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-12.01.01P |
identify finishing process |
identify finishing process according to drawings |
| C-12.01.02P |
identify areas not to be finished |
areas not to be finished are identified |
Range of variables
- finishing processes include: painting, galvanizing
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-12.01.01L |
demonstrate knowledge of finishing processes, their characteristics, applications and limitations |
identify finishing processes, and describe their characteristics, applications and limitations |
| identify types of finishes on bare metal, and describe their characteristics, applications and limitations |
| identify final product requirements |
Range of variables
- finishing processes include: painting, galvanizing
- types of finishes include: polished, brushed, mill
C-12.02 Prepares material for finishing
C-12.02 Prepares material for finishing
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| Reference Code |
Performance Criteria |
Evidence of Attainment |
| C-12.02.01P |
select and use tools and equipment |
tools and equipment are selected and used to remove burrs, sharp edges, weld spatter and slag so that finishing materials will adhere to components |
| C-12.02.02P |
ensure that welds are profiled |
welds are profiled according to specifications |
| C-12.02.03P |
sort assemblies for specific finishes to prevent cross-contamination |
assemblies for specific finishes are sorted to prevent cross-contamination |
| C-12.02.04P |
fill and blend surface blemishes |
surface blemishes are filled and blended using welding processes |
| C-12.02.05P |
install tagging system after finishing process |
tagging system is installed after finishing process to ensure traceability |
| C-12.02.06P |
prepare weldments for galvanizing |
weldments are prepared for galvanizing by providing air bleeds and drain holes |
Range of variables
- tools and equipment include: buffing wheels, sanders, grinders, sand-blasters
- surface blemishes include: plate clamp gouges, arc strikes, defects
- welding processes include: GMAW, SMAW, GTAW, FCAW, MCAW
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| C-12.02.01L |
demonstrate knowledge of preparing material for finishing |
describe procedures used to prepare material for finishing |
| identify tools and equipment used to prepare material for finishing, and describe their characteristics, applications, limitations and operation |
| identify final product requirements |
| describe tagging procedures |
Range of variables
- tools and equipment include: buffing wheels, sanders, grinders, sand-blasters