①以下厚度適用的最小延伸率:
0.5mm < t ≤ 0.7mm 猛频,最小延伸率比表中值減少2%;
0.35mm < t ≤ 0.5mm 蛛勉,最小延伸率比表中值減少4%鹿寻;
t ≤ 0.35mm ,最小延伸率比表中值減少7%
②塑性應(yīng)變比r90≥1.9:
1.5mm < t ≤ 2mm诽凌,r90減少0.2
t ≥ 2mm毡熏,r90減少0.4
③應(yīng)變硬化指數(shù)n90≥0.21
④塑性應(yīng)變比r90≥1.7:
1.5mm < t ≤ 2mm,r90減少0.2
t ≥ 2mm侣诵,r90減少0.4
⑤塑性應(yīng)變值r90≥1.7
以下產(chǎn)品厚度適用的塑性應(yīng)變值r90
0.5mm < t ≤ 0.7mm招刹,r90減少0.2;
0.35mm < t ≤ 0.5mm窝趣,r90減少0.4;
t ≤ 0.35mm,r90減少0.6
應(yīng)變硬化指數(shù)n90≥0.20:
以下產(chǎn)品厚度適用的應(yīng)變硬化指數(shù)n90
0.5mm < t ≤ 0.7mm茫绅,n90減少0.01盅格;
0.35mm < t ≤ 0.5mm,n90減少0.03咳综;
t ≤ 0.35mm鞭碳,n90減少0.04