Auto Collision Repair Volume 2
Interactive Training Series

Audience:		Anyone interested in pursuing a career or furthering their career as an Automotive Collision Repair Technician.
Average Training Time:		2 to 3 hours per volume NOTE
Format/ Product Code:		CD-ROM (MPEG Video)/ DLMRACR
Produced by:		Delmar Thompson Learning

TOPICS
The volume presents interactive instruction covering the following topical areas:

Metal Straightening Fundamentals

• Effects of Impact Forces
• Planning
• Hammering
• Spooning
• Pulling
• Shrinking Metal
• Working with Aluminum
• Using Body Filler
• Primer-Filler Putty

Collision Repair Materials

• Refinishing Materials
• Primers and Sealers
• Other Materials
• Body Fillers
• Abrasives

Fiberglass and Plastic Repair

• Intro to Fiberglass and Plastic Repair
• Types of Plastics
• Fiberglass Repair
• Reinforced Plastics Repairs
• Non-Reinforced Plastics Repair

Frame-Unibody Construction

• Intro to Frame-Unibody Construction
• Straightening Equipment
• Pulling Basics
• Planning the Pull
• Pulling the Damage
• Final Alignment Checks

PERFORMANCE OBJECTIVES
This course will measure mastery on each of the following performance objectives. Upon completion, workers will be able to...

Understand Sheet Metal Resistance

1. Explain elastic deformation.

Identify Order of Damage

1. Recall the rough straightening rule “last in first out”.
2. Explain how to prepare for rough straightening.

Use a Body Hammer Properly

1. Identify the body hammer as the most common tool used to remove small dents.
2. Compare hammers.
3. Explain when to use a dolly.
4. Explain how to finish hammering.
5. Explain how to repair a dent.
6. Describe hammer and dolly work.

Repair Stretch Metal

1. Explain how to repair a dent.
2. Explain how to pull dents.
3. Recall that metal is often stretched in badly buckled areas.

Work with Aluminum

1. Recall that aluminum turns ash gray just before it melts.

Use Body or Plastic Filler

1. Recall that cardboard should not be used as a filler.
2. Recall that 10% hardener is added to plastic filler.
3. Recall that layers of filler should not exceed 1/8 inch.
4. Explain that the cheese grater file is held at 30-40 degrees.
5. Recall that feather edging is commonly done with a DA Sander.
6. Identify the contour sander as the tool to replicate curved body lines.

Understand Composition of Complete Finish System

1. Identify the elements of a basic painting system.
2. Identify when to use a slower drying thinner.
3. Recall another name for a vehicle’s top coat.
4. List the functions of a paint additives.
5. Name two purposes of a vehicle's finishing system.
6. Recall the correct type of thinner to use in cold wet weather.

Compare Primers and Sealers

1. Identify when to use a plain primer.
2. Identify when to use a paint sealer.

Compare Fillers

1. Identify when to use a plastic filler.
2. Identify when to use a fiberglass body filler.
3. Identify when to use body filler.

Compare Abrasives

1. Recall when to use 16 to 24 grit sandpaper.
2. Recall when to use coarse sandpaper.
3. Recall when to use fine sandpaper.
4. Identify when to use scuff pads.

Use Appropriate Fasteners

1. List adhesives used in collision repair facility.
2. Identify when to use a weatherstrip adhesive.

Compare Plastics

1. List natural substances that plastics are synthetically compounded from.
2. Recall that thermoplastics can be repeatedly softened and reshaped with no change in their chemical makeup.
3. Recall that composite plastics or ‘hybrids’ are blends of different plastics and other ingredients.
4. List the reasons plastics are used in vehicle manufacture.
5. Recall that thermoplastics are often repairable with a plastic welder or a two-part repair.
6. Recall that termosete are not weldable but can be repaired with a two-part repair.
7. Recall that fiberglass is a plastic resin reinforced with long fibers.

Repair Plastics

1. Choose appropriate grit of sandpaper for fiberglass repairs.
2. Recall how to clean damaged fiberglass.
3. Explain how to stir fiberglass resin and hardware together.

Perform Reinforced Plastic Repairs

1. Recall that a backing patch is normally used on a two sided repair.
2. Recall that a one sided repair can be as strong as a two sided repair.
3. Explain how to perform reinforced plastic repairs.
4. Recall that SMC sectioning can be done almost anywhere.
5. Explain how a backing patch or strip can be fabricated.

Perform Non-reinforced Plastic Repair

1. Recall that when plastic welding force the rod into the joint to create a good bond.

Use Straightening Equipment Properly

1. Explain how straightening equipment works.
2. Explain how hydraulic rams work.
3. Explain anchoring.

Understand Pulling Basics

1. Recall that the single pull method works well with minor damage on one part and on full frame vehicles.
2. Explain when to do a multiple pull.
3. Explain the order of pulling and straightening.

Plan the Pull

1. Identify when to use pinchweld clamps.
2. Determine where to start the pull.
3. Explain when to use multiple anchoring.
4. Recall that only mounting points are used when pulling.

Pull the Damage

1. Explain the fulcrum point.
2. Explain overpulling.
3. Recall that the pulling must be measured.

Check Final Alignment

1. Explain why vehicle aligment is important.
2. Recall that final aligment checks begin by walking around the vehicle looking for obvious damage.

More information on the
Auto Collision Repair series

Overview

Volume 1

Volume 3

Volume 4

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