upsetting ratio 中文意思是什麼

upsetting ratio 解釋
鐓鍛比
  • upsetting : 扁頭法
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Abstract : based on the result of visioplasticity test, the law of tube central upsetting was created, and the calculated method of displacement field and strain field were obtained. in this study, the four deformation modes were showed when ratio of height to thickness of tubular billet is greater than 3. the four modes were related to the distribution of strainless - plane

    文摘:根據管坯視塑性實驗法的實驗結果，分析了無芯軸支撐條件下，管坯中部鐓鍛的變形規律，闡述了變形區位移場、應變場的計算方法；通過對實驗結果的分析，得出了當鐓粗比3 ，管坯中部鐓鍛時，內壁呈現四種典型的變形模式；論述了分流面的分佈與四種變形模式之間的轉化關系。
  2. Abstract : in this paper, the stress field in a concave plank being upset is resolved by analytic mathematical method of plastic mechanics, the relation between the geometric parameter ( dimension ratio, concave shape ) and friction shearing stress is determined for upsetting a plank free of tension stress

    文摘:本文用塑性力學初等解析法求解了凹形板坯鐓粗時的應力場，確定了無拉應力鐓粗時坯料幾何參數（尺寸比、凹形形狀）與坯料端面摩擦剪應力的關系。
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