M1
M1 Continued
M2
M3
M3 Continued
100

When aluminum and steel contact each other, this may occur

What is Galvanic Corrosion 

100

has a melting point of approximately 660°C (1,220°F)

Aluminum

100

It occurs when a part is damaged.

Work Hardening

100

This cannot be applied in the repair facility.

Coatings On Bolts

100

These rivets will commonly be flush mounted

SPR Self piercing rivets

200

This processes can be used to change the characteristics of aluminum.

Alloying Elements, Heat Treating, Cold Forming

200

These are generally attached to other parts with GMA (MIG) fillet welds. Castings can also be attached to other parts using bolts or rivet bonding

Castings

200

Similar to new steels, this may not apply to aluminum.

Kink Versus Bend

200

This shielding gas is heavier than air.

Argon

200

These are used in locations where the vehicle maker originally used welds. 

Blind rivets

300

When damaged, aluminum parts made from this type of forming process requires replacement.

Castings

300

dissimilar metals coming in contact with each other in the presence of an electrolyte.

Galvanic corrosion

300

It does not remember where it was.

Aluminum Has Limited Memory

300

These may mount flush.  

Rivets

300

These are commonly used on wheelhouse flanges and door skins.  

Hemmed flanges

400

These may have multiple cells.

Extrusions

400

These type are almost always used as attachment points for structural parts.

Castings

400

This is a way of warming up the issue.

Applying Heat To Straighten Aluminum

400

These lock panels together, but they are not used on structural parts (Physical)

Clinch

400

The rivet head, body, mandrel, and stem are parts of these

Blind rivets

500

Aluminum parts made from this type of forming process are often repairable.

Stampings

500

These parts are complex designs and shapes with seams that are not visible. An extrusion may have a variable thickness cross section.

Extrusions

500

Aluminum does not do this before melting.

Change Color

500

Despite rumors, a rope is not used on these.

Rope Hem Flang

500

This is the sum of panel thickness of the new and exististing panel. It is necessary to determine the replacement Rivet/method

Panel stack