鐓粗模 的英文怎麼說
中文拼音 [dūncūmó]
鐓粗模
英文
joggling die-
Grain size simulation of 45 steel forging during upsetting
鋼鍛件熱鐓粗過程晶粒尺寸模擬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。Based on investigating and technical testing, this paper researches the electric upsetting process comprehensively, puts forward a over - all parameters control system, a intelligent upsetting project, a " spherically upsetting method " and a detecting pressure ? ontrolling temperature method innovatively. it is the first time to use the intelligent control theory in electric upsetting, put forward a defect removing experts system and temperature control fuzzy experts system, as following : 1. method of reconstructing intelligent upsetting machine from a traditional one, changing the parameters to controllable
本文在理論分析、調研和工藝實驗的基礎上深入研究電熱鐓粗工藝，提出了電熱鐓粗工藝全參數控制系統、智能型電鐓機的硬體框架，提出了具有創新性的「球形鐓粗法」及檢測變形阻力? ?控制變形溫度的方法，並首次把智能控制技術運用於電熱鐓粗工藝，提出了電熱鐓粗產品缺陷消除專家系統和溫度控制模糊專家系統。Thermodynamic couple numerical simulation of ring compression of pure aluminum and tube extrusion of superalloy gh4169 is done by adopting the constant friction model and the present friction model in the paper. numerical results are compared with experimental investigations to validate the correction and nicety of the present friction model of bulk metal forming processes. the accuracy of the finite element simulation of bulk forming processes can be improved by adopting the present friction model
採用二次開發msc . superform軟體，對純鋁圓環鐓粗和高溫合金gh4169管材擠壓過程進行了熱力耦合數值模擬，比較了採用本文提出的多因素摩擦模型和常摩擦模型對圓環鐓粗和管材擠壓過程變形行為的影響，通過與實驗結果的比較，驗證了本文的摩擦模型及其參數值的正確性，也說明了多因素摩擦模型提高了有限元模擬的精度。After description of slide line fields according to the different proportion of width / diameter, the stress function in flat plate upsetting has been determined, the changing rule of slide line fields been described, the process of column upsetting been simulated by using the software of abaqus and the theoretical value been proved through comparing the simulation value with the theoretical value
摘要本文應用滑移線理論來求解平板鐓粗模型，描述了在不同寬徑比下的滑移線場，確立該模型單元的應力場表達式，描述其滑移線場的變化規律，最後運用abaqus軟體對圓柱體鐓粗進行數值模擬，將模擬值與理論值進行對比，對理論值進行驗證。分享友人