用锥形板镦粗的新工艺及其力学原理

来源 :机械工程学报 | 被引量 : 0次 | 上传用户:mahw9866
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
在文献[1]中用新的理论,论证了圆柱体毛坯的平板间镦粗,不可避免地存在着内部应力状态不佳与变形不均匀的严重弊病。为了改变这种状态,从边界和条件入手,提出了一种新型的圆锥形镦粗板。用该工具镦粗毛坯,改变了其内部的应力状态,有利于毛坯中缺陷的锻合,不利于内部萌生裂纹。所建立的力学模型和物理模拟实验,完全证明了这点。
其他文献
7-(Diethylamino)-3-(4-aminophenyl)coumarin has been synthesized in a new one-pot synthesis by a three-step process starting from 4-(diethylamino)salicylaldehyde
Cu2O/TiO2 catalyst was prepared by the modification of TiO2 with Cu(NO3)2 through combined ultrasonic resonance and impregnation method. The samples were charac
A new five-heterocyclic-biphosphine-substituted Fe-only hydrogenase mimic,[(μ-pdt)Fe_2(CO)_5]_2(PTP)(1),has been synthesized at room temperature. 1·H_2O c
A novel mixed-ligand coordination polymer [Pb(phen)(NNDS)(H2O)]n·n H2O(1) was obtained from the reaction of 1,10-phenanthroine(phen), Pb(OAc)2 and sodium 1
The title complex [Cu(BBA)(NO3)](NO3)2(BBA = [2-(benzotriazol-1-yl)ethyl][2(benzotriazol-2-yl)ethyl] amine) has been synthesized and structurally characterized.
Deregulated c-Myc expression is a hallmark of many human cancers. We have recently identified a role of mammalian homolog of yeast SPT-ADA-GCN5-acetyltransferas
A novel terpyridine-based complex CdL'S2 (L'= oxide of L; L = 10-hexyl-3-(2,6-di(pyridine-2-yl)pyridine-4-yl)-10H-phenothiazine) has been solvothermally