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A00199.gifAdvantages and disadvantages (Topic: 17111)

Advantages of adhesive bonding are:

ñ Uniform stress distribution over the entire bonded area

ñ Good fatigue resistance

ñ Good vibration-damping and flexibility

ñ Ability to bond aluminium to non-metallic materials

ñ Weight reduction compared to bolt and rivet joints

ñ Smooth joint surfaces and contours

ñ Ability to anodise with no risk of staining

ñ Prevention or reduction of galvanic corrosion

ñ Good sealing and insulating properties

Disadvantages of adhesive bonding are

ñ Decreased strength at elevated temperatures, especially under long time loading

ñ Possible degradation of bond by environmental influence

ñ Complicated bonding process. Stronger joints demand proper surface preparation and may also require jigs, presses and heating equipment

ñ Difficult and expensive to provide for adequate inspection

ñ Additional exhaust and protective clothing might be necessary for reasons of health

References: [2,8,12]