①以下厚度適用的最小延伸率:
0.5mm < t ≤ 0.7mm 动知,最小延伸率比表中值減少2%皿伺;
0.35mm < t ≤ 0.5mm ,最小延伸率比表中值減少4%盒粮;
t ≤ 0.35mm 鸵鸥,最小延伸率比表中值減少7%
②塑性應(yīng)變比r90≥1.6:
1.5mm < t ≤ 2mm,r90減少0.2
t ≥ 2mm嘶在,r90減少0.4
③應(yīng)變硬化指數(shù)n90≥0.18
④塑性應(yīng)變比r90≥1.4:
1.5mm < t ≤ 2mm护忠,r90減少0.2
t ≥ 2mm,r90減少0.4
⑤塑性應(yīng)變值r90≥1.4
以下產(chǎn)品厚度適用的塑性應(yīng)變值r90
0.5mm < t ≤ 0.7mm扎趋,r90減少0.2前茧;
0.35mm < t ≤ 0.5mm,r90減少0.4莲态;
t ≤ 0.35mm丰浙,r90減少0.6
應(yīng)變硬化指數(shù)n90≥0.18:
以下產(chǎn)品厚度適用的應(yīng)變硬化指數(shù)n90
0.5mm < t ≤ 0.7mm,n90減少0.01秤凡;
0.35mm < t ≤ 0.5mm袄映,n90減少0.03;
t ≤ 0.35mm,n90減少0.04