Sheet Metal Worker

USDOL

National (OA)

Documents

Individual state requirements may vary. Please contact your local apprenticeship office to ensure this version is suitable to your state’s requirements.

Work Process Schedule

Work Process Content

On the Job Training

Anonymous

OJT hours

Use of hand tools

350

Use of machine tools and processes

Flux, rivets, and fastening devices

500

Measurements and layouts

650

Bench work

1.1K

Welding

750

Installing duct work and equipment

2.1K

General sheet fabrication and installation of skylights and ventilators

Safety practices

500

Insulation of duct work (lining, etc.)

100

Related Instruction Outline

Related Instruction Content

Training Provider(s):

610

RI hours

Basic Safety

Introduction to Construction Math

Introduction to Power Tools

Introduction to Blueprints

Basic Rigging

Introduction to the Sheet Metal Trade

Fasteners, Hangers, and Supports

Installation of Air Distribution Accessories

Insulation

Introduction to Sheet Metal Layout and Processes

Trade Math I

Fabrication I - Parallel Line Development

Trade Math 11

Basic Piping Practices

Fabrication Il - Radial Line Development

Bend Allowances

Blueprints and Specifications

Air Properties and Distribution

Sheet Metal Duct Fabrication Standards

Soldering

Fiberglass Duct

Trade Math Ill: Field Measuring and Fitting

Airside Systems

Introduction to Welding, Brazing, and Cutting

Principles of Refrigeration

Principles of Air Flow

Comprehensive Blueprint and Specification Reading

Fabrication Three: Triangulation

Architectural Sheet Metal

Shop Production and Organization

Air Balance

Fabrication Four

Louvers, Dampers and Access Doors

Hoods and Ventilators

Fume and Exhaust Systems Design

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