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U形零件弯曲时的凹模最小深度是决定零件精度与发挥设备技术性能的重要因素之一。 凹模深度不够时,零件侧边不可能充分弯曲到垂直位置(图1a);反则,深度超过
U-shaped parts when bending the minimum depth of the die is to determine the accuracy of parts and equipment to play one of the important technical performance. When the depth of the die is not enough, it is impossible for the side of the part to bend to the vertical position (Fig. 1a); otherwise, the depth exceeds