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Technical Paper

Designing Body Panels for Corrosion Prevention

1978-02-01
780916
To aid in avoiding the corrosive elements of the environment, the designer of sheet metal body panels should consider principles which provide optimal drainage and access for the application of protective coatings. Major vehicle body components are considered individually or in closely related pairs such as door inner and outer panels. The general guidelines for preferred construction of drain holes, shingling, shielding and access for material application are outlined for each major component.
Technical Paper

1985 Body Corrosion Field Survey - 5 and 6 Year Old Vehicles

1986-12-08
862025
The Body Division of the Automotive Corrosion and Prevention Committee of SAE (ACAP) concluded that an automotive body corrosion survey for public consumption was needed. The committee proceeded to develop a survey methodology and conducted an initial survey in the Detroit area. Similar surveys can be conducted at regular biyearly intervals for comparison to track the results of industry wide improvements in corrosion protection. Over two hundred 1980 and 1981 model year vehicles were surveyed covering a wide range of domestic models and some foreign models. Twenty six panel or partial panel categories were developed and evaluated for a closed car parking lot survey. Each panel was checked for perforation, blistering and surface rust.
Technical Paper

U.S. Automotive Corrosion Trends at 5 & 6 Years

1989-12-01
892578
In 1985, the Body Division of the Automotive Corrosion and Prevention Committee of SAE (ACAP) concluded that an automotive body corrosion survey for public consumption was needed. The committee proceeded to develop a survey methodology and conducted surveys in the Detroit area every second year starting in 1985. The survey is a closed car parking lot survey of nineteen panels or partial panels checking for perforations, blisters and surface rust. Similar surveys have and will continue to be conducted at biyearly intervals for comparison purposes to track the results of industry wide corrosion protection “improvements”. This is a report of the results of the first three surveys. THE ACAP COMMITTEE BODY DIVISION has now completed the third in its series of biyearly surveys. It is now possible to see some very clear results of industry actions and some indication of future performance.
Technical Paper

The Salt Spray Test - Past, Present, and Future

1983-12-05
831815
The salt spray test has been an industry wide standard corrosion test since its conception in 1914. A literary review of its history shows that it has· always been thought of as inconsistent and unreliable but, for a variety of reasons, has continued to be used. A study of more than 55 salt spray cabinets was performed using a controlled lot of parts and questionnaires on cabinet operation. Although the tested parts varied from mildly corroded to extremely rusted no factor could be found to account for the differences. Although the test has its uses it should be studied by an industry formed committee which should make recommendations as to further standardization and corrections to the test. A lengthy chronological bibliography aids the reader in further study and reference.
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