Feb 07, 2023  
2020-2021 Course Catalog 
    
2020-2021 Course Catalog [ARCHIVED CATALOG]

Add to Portfolio (opens a new window)

CRR 325 - Sheet Metal Fundamentals

Credits: 5
Lecture Hours: 2
Lab Hours: 6
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech
An understanding of corrective force applied to metal by use of hammer/dolly techniques, and metal finishing techniques are emphasized throughout the course.  An understanding of automotive design, materials used in automobile construction, recommended metal repair procedures, correct use of abrasives, and application of fillers.  Welding equipment and techniques recommended by OEM are studied throughout the classroom and lab.
Prerequisite OR Corequisite: CRR 150  ,  CRR 101  
Competencies
  1. Evaluate necessary precautions with hazardous operations and materials according to federal, state, and local regulations. (HP-I)
    1. Determine safety and personal health hazards according to OSHA guidelines and the “Right-to-Know Law” (HP-I)   
    2. Explain the NIOSH approved personal sanding respirator.  Inspect condition and ensure fit and operation.  Perform proper maintenance in accordance with OSHA Regulation 1910.134 and applicable state and local regulation (HP-I)
  2. Apply appropriate safety equipment dependent on activity
    1. Select proper safety equipment, hand, eye, ear, and respirator protection (HP-1)
    2. Select proper protective clothing and footwear (HP-1)
  3. Examine vehicle construction and welding requirements
    1. Explain general vehicle construction for full frame and uni-body vehicles
    2. Determine proper heating techniques and general vehicle manufacture requirements for heating of metal throughout the metal repair process (HP-I)
    3. Determine proper welding techniques used for repairing Mild, HSS (high strength), and HSLA (high strength low alloy) steel (HP-I)
  4. Modify, straighten and rough-out contours of damaged panels to a suitable condition for body filling or metal finishing using power tools, hand tools, and weld-on pull attachments (HP-I)
    1. Determine direction of impact (HP-I)
    2. Plan the order of repair
    3. Identify and repair surface irregularities on a damaged body panel             
  5. Demonstrate hammer and dolly techniques
    1. Demonstrate metal finishing techniques
    2. Choose proper grinder techniques
    3. Show ability to heat shrink stretched panel areas to proper contour
    4. Show ability to cold shrink stretched panel areas to proper contour (HP-I)
    5. Identify and repair a gouge, tear, and puncture in sheet metal
    6. Determine removal of paint finish
    7. Determine the proper metal finishing techniques for aluminum (HP-G)
  6. Determine metal welding procedures
    1. Identify weldable metals used in collision repair
    2. Demonstrate cleaning and preparation of the metal to be welded, assure good metal fit-up, apply weld through primer if necessary, and clamp as required (HP-I)
  7. Prepare basic welder setup
    1. Decide the correct GMAW (MIG) welder type, electrode, wire type, diameter, and gas to be used in a specific welding situation (HP-I)
    2. Decide the type of weld (continuous, butt weld with backing, plug, etc) for each specific welding operation (HP-I)
    3. Decide work clamp (ground) location and attach (HP-I) 
  8. Choose and apply filler material
    1. Demonstrate proper mixing of body filler
    2. Demonstrate proper application technique and shape during curing
    3. Identify and use varying abrasive grits to shape, finish, and featheredge filler
    4. Determine application of body filler to aluminum
  9. Determine surface preparation of filler, metal surface, and surrounding area for primers/surfacers
    1. Demonstrate Dry or wet sanding of areas to be refinished
    2. Demonstrate Featheredging of damaged areas to be refinished
  10. Complete I-CAR Introduction series.  (#3, #4, #5)
    1. Complete #3 Intro to vehicle construction materials (ICM00e)
    2. Complete #4 Intro to vehicle parts terminology Part 1 (IVT01e)
    3. Complete #5 Intro to vehicle parts terminology Part 2 (IVT02e)
    4. Complete Cosmetic Straightening Steel (STS01)
    5. Complete Removing and Installing Exterior Trim, Pinstripes, and Decals (TRM 03) - online

Competencies Revised Date: 2019



Add to Portfolio (opens a new window)