1、铝板的硬度

1. Hardness of aluminum plate
铝板硬度太高，很容易开裂。这就需求挑选质量好的铝板，主要看铝板合金和状态。通常1系列、3系列、5系列的对比常用，6系列、7系列的硬度太高，要先做退火处理到O态后才好折弯。还有即是铝板的质量。
   aluminum plate has too high hardness and is easy to crack. This requires the selection of good quality aluminum plate, mainly depends on the aluminum plate alloy and state. Generally, the comparison of 1 series, 3 series and 5 series is commonly used. The hardness of 6 series and 7 series is too high, so it is necessary to conduct annealing treatment to o state before bending. There is also the quality of aluminum plate.
2、铝板的厚度。
2. Thickness of aluminum plate.
太厚的铝板不好折弯，我们一想就理解，尽量运用薄一点的铝板。                 .
3、折弯R角的巨细
3. The size of bending R angle
折弯R角越大，那成功率就越高，所以尽量调大折弯R角越大。
   the larger the bending R angle, the higher the success rate, so try to increase the bending R angle to increase the greater.

4、铝板纹理方向。
折弯方向要与铝板纹理方向垂直，不能平行。
   the bending direction should be perpendicular to the grain direction of aluminum plate, not parallel.
需求拉丝的铝板零件，在工序答应的情况下佳是折弯后再拉形，否则会添加折弯开裂的概率。
   for aluminum plate parts requiring wire drawing, the best way is to stretch after bending when the process is allowed, otherwise the probability of bending cracking will be added.
铝板生产厂家讲解铝板折弯开裂的影响因素
Aluminum plate manufacturers explain the influencing factors of aluminum plate bending cracking
是状态重要了
   first of all, state matters
状态分为全硬、半硬、软态（通常软态叫O态），全硬的折弯效果基本不太行（铝板状态是H18、H19、H38等都是全硬的），半硬状态的铝板基本上都可以折弯（H24的也就是半硬的）。O态的折弯是肯定没问题，但是由于太软了，基本上用这种状态的来折弯的比较少。
   state is divided into full hard, semi-hard and soft state (usually soft state is called o state). The bending effect of full hard is not very good (aluminum plate state is h18, H19, h38, etc.) and aluminum plate in semi-hard state can be basically bent (H24 is semi-hard). O-state bending is certainly no problem, but because it is too soft, basically using this state to bend less.
其次是你要选择纯铝还是合金铝
   next, do you want pure aluminum or alloy aluminum
纯铝硬度不是很高，用1100、1050、1060等等都可以，推荐用1100 H26的合金铝硬度好一点，可以用3003、3005、5052等半硬状态的都可以的。
   the hardness of pure aluminum is not very high. 1100, 1050, 1060 and so on can be used. It is recommended to use 1100 H26 alloy with better hardness, and 3003, 3005, 5052 and other semi hard states can be used.
具体情况建议试样再确定，如果用6061、2024、7075由于硬度太高，特别是T6状态的更是，应该折弯不了，除非加温再折，质量好的铝板与质量差铝板的区别是氧化性能、公差、表面效果、晶精度及均匀稳定性等有区别的，单单折弯效果区别不大。
    it is suggested to re determine the sample. If 6061, 2024 and 7075 are used, the hardness is too high, especially for T6 state, it should not be bent. Unless the aluminum plate with good quality is re folded after heating, the difference between good quality aluminum plate and poor quality aluminum plate is oxidation performance, tolerance, surface effect, crystal precision and uniform stability, but the bending effect is not different.