冲压工考试
“冲压工考试” 问题列表
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Sunday, March 2, 2025
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Sunday, December 24, 2023
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问题：外径千分尺的测量精度是0.01毫米，读数误差是0.01毫米。（）...
Sunday, April 6, 2025
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问题：下列金属材料中哪一种是冲压生产常用的金属材料？（）A、10#B、T10AC、SPCED、HT250...
Wednesday, April 23, 2025
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问题：材料的机械性能是指抗剪强度、倔服强度、倔拉强度、延伸率等，按顺序的表示符号为（）。A、τ0、σs、σB.、δ10B、δ10、σB.、σs、τ0C、C.τ0、σ、σs、δ10...
Tuesday, February 6, 2024
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Sunday, October 2, 2022
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问题：用厚度为t的材料作圆筒拉延，若拉深前毛坯直径为D，拉深后零件直径为d，则拉深系数m等于（）。A、t/（D-D.B、t/dC、d/D...
Sunday, January 22, 2023
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问题：定形性是指零件脱模后保持其在模内既得形状的能力，影响零件定形性的...
Tuesday, September 13, 2022
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Tuesday, September 13, 2022
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Tuesday, September 13, 2022
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Tuesday, September 13, 2022
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Tuesday, September 13, 2022
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Tuesday, September 13, 2022
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Tuesday, September 13, 2022
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Tuesday, July 25, 2023
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问题：为保障生产快速进行，双手按扭可以只使用一个。（）...
Wednesday, January 1, 2025
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Tuesday, September 13, 2022
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问题：拉深时，凸缘变形区的拉裂和筒壁传力区的起皱是拉深工艺能否顺利进行...
Tuesday, September 13, 2022
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Tuesday, September 13, 2022
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问题：冲压加工与普通的切削加工相比，具有节能，节约金属，效率高等特点，但质量不稳定，互换性差。（）...
Tuesday, July 25, 2023