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不均匀压缩下金属板带面内弯曲成形是一种不同于传统塑性弯曲的先进弯曲方法。对由锥辊实现的这一弯曲成形方式的影响因素进行了分析；在此基础上，通过正交试验获得了影响的主次顺序，为建立变形区参数与’扎什弯曲半径间的函数关系提供了参考依据：对宽度b0=35.30mm的LF21M冷轧板带获得了相对弯曲半径R／b0小至1．26，对宽度b0=31．58mm的LF21M冷轧板带，获得的弯曲件最外缘处材料纵向延伸率达71．8％，远大于该材料的极限延伸率30％。试验表明该成形方式可实现小半径薄板面内弯曲，显著提高了材料的弯曲成形极限。
In-plane compression of sheet metal under uneven compression is an advanced bending method that is different from traditional plastic bending. The influencing factors of this bending forming method realized by conical roller were analyzed. On this basis, the order of primary and secondary influencing factors was obtained through orthogonal experiment. In order to establish the function relation between deformation zone parameters and ’ Provides the reference basis: LF21M width of b0 = 35.30mm cold-rolled strip with a relative bending radius R / b0 as small as 1.26, width b0 = 31.58mm LF21M cold-rolled strip, obtained the most curved pieces Longitudinal extension of the material at the outer edge of 71.8%, much larger than the ultimate elongation of the material 30%. Experiments show that the forming method can realize in-plane bending of small radius sheet, and significantly increase the bending forming limit of the material.