当一个铝铆钉的镦头形成在较软的材料一边时，必需在铆钉镦头下使用垫片以防止较软材料胀裂。
When an aluminum rivet is upset against a softer material, a washer must be used under the upset head to prevent eruption of the softer material.
并测试了铝可剥离垫片的各种性能及胶粘剂的稳定性能。
The paper also studies the properties of Al peelable shim and the stability of the adhesive.
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