Critical Issues for Chrome-free Pretreatment of Aluminium Alloys
Critical Issues for Chrome-free Pretreatment of Aluminium Alloys
Critical Issues for Chrome-free Pretreatment of Aluminium Alloys
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<strong>Critical</strong> <strong>Issues</strong> <strong>for</strong> <strong>Chrome</strong>-<strong>free</strong> <strong>Pretreatment</strong> <strong>of</strong> <strong>Aluminium</strong> <strong>Alloys</strong><br />
Mechanically Ground Surface Layers<br />
• Produced over a wide range <strong>of</strong> grit sizes and lubrication conditions<br />
• Can be removed by diamond polishing<br />
• Similar surfaces produced by machining <strong>of</strong> AA7xxx alloys<br />
• Less stable than rolled surface de<strong>for</strong>med layers and can be<br />
annealed out<br />
International Conference on Environmental friendly <strong>Pretreatment</strong>s fo <strong>Aluminium</strong> and other Metals, Oslo, Norway, June 16-18, 2004
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