... reduction of area at fracture 断裂颈缩 reduction of area 断面缩减率 refractory coating 耐火涂层 ...
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通过分析花键冷挤压成形极限，得到花键断面缩减率和凹模形状对花键冷挤压成形时相对挤压应力的影响。
The effect of the spline reduced rate and the die sharp to the forming limit is found by analyzing the limit of the extrusion.
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